A second study

Continuing her voice

Working draft · October 2026 · revised 18 October 2026 after an independent review · one model

Branches of one saved machine reading studied different amounts of Sophie Duvernoy's earlier English and were asked to continue it. In this workflow they adopted some of her earlier renderings and editorial conventions, while several structural choices persisted from the shared reading's plan. Repeated runs also differed on the instrument's categories. The study measures these similarities and differences in one chapter; it does not evaluate literary quality or establish a general limit on imitation.

The question

What changes when a machine translator studies a human translator's earlier chapters and is asked to continue in her voice?

The first study on this site compared six machine translations of Chapter 25 ("Spring") of Gabriele Tergit's Effingers with Sophie Duvernoy's published translation (New York Review Books, 2025). The six machine versions agreed with one another far more often than any of them agreed with hers; the Findings set out the measurements.

Here, branches of a single machine reading of the novel read one, three, ten, twenty or twenty-four chapters of her English, took notes on them, and received an explicit instruction to continue in that voice. The comparison measures this combined workflow (her chapters, the study of them and the instruction together), not the effect of reading alone. The question is which of her renderings and conventions then appear in the machine's Chapter 25, which do not, and whether the machine versions still resemble one another more than they resemble hers.

Design

The model is Claude Opus 5.5 at maximum reasoning effort, with file tools only (read, write, edit, search): no internet, no research, no persona. All runs were made between 13 and 15 October 2026.

Step 1

One reading. A single instance reads the whole German novel closely and keeps notes, under a minimal translator's brief that holds back the translation instructions until after the reading.

Step 2

Branching. The conversation and the notes are saved and copied into branches. Every branch starts from the identical reading.

Step 3

Her English (doses 1, 3, 10, 20 and 24 only). The branch reads her translation of the 1, 3, 10, 20 or 24 chapters immediately before Chapter 25, start to finish, and keeps notes.

Step 4

Translation. Every branch receives the same translation instructions; doses 1 to 24 receive two sentences more. Each branch may revise in up to five passes and decides when to stop; each used two or three.

Step 5

Statement. Each branch writes a short statement of its approach.

The key line of the reading brief:

Translate Chapter 25 into English. You will receive precise translation instructions after the reading.

The two sentences added for doses 1 to 24, exactly as given:

The reference translation is the established English of this book. Translate Chapter 25 so that it continues seamlessly in that voice — as if you were the same translator carrying the book forward into the next chapter.

The number of her chapters a branch read is its dose. Dose 0 received only the translation instructions. The chapters are nested: each larger dose contains the smaller ones.

Figure 1. What each branch read before translating Chapter 25. One square is one chapter of her English, ch. 1 at the left to ch. 24 at the right. In words of her English: 2,929 at dose 1, 7,944 at dose 3, 21,434 at dose 10, 34,787 at dose 20, 40,415 at dose 24. Measured from each instance's own file reads, the shared reading covered the whole novel, and each branch the whole of the chapters it was given; full coverage establishes exposure, not equal retention or understanding.

What every branch inherits. The shared reading was long enough for its conversation to be compacted once, so the branches start from a compacted conversation and the notes it saved. Those notes already contain a developed plan for Chapter 25: keep the verbless fragments verbless, keep the present-tense passage in the present, a fixed English wording for each return of the refrain, and a checklist to run after drafting. The notes call the plan provisional, and no branch was told to keep it or to change it. The experiment therefore asks whether her chapters and the instruction move an already developed reading and plan; it does not test imitation from an unsettled reading.

Repeats. Dose 0 and dose 20 were each run three times from the identical saved reading. At dose 20 each repeat includes studying her chapters, taking notes and revising, so the variation between its runs is variation of that whole workflow. Doses 1, 3, 10 and 24 were run once; dose 24 was added on 15 October, branched from the same saved reading.

A reference run. The first study's control brief and step messages were also run verbatim on the same model, with a reading of its own. It appears below as C0.

How it was measured

Three measurements, each against her Chapter 25 as printed in the book.

1. The first study's 45 points. The 45 places in the chapter where the German leaves a real choice, as coded in the first study, were coded for every October run, in two batches. The coding was blind: the coder saw the texts under neutral labels. In each batch two of the first study's versions were coded again as unannounced calibration anchors, and all four matched their earlier coding at all 45 points.

2. A new instrument, built blind. The 45 points were chosen to compare differently briefed machines, not to trace her earlier chapters. For this study a separate AI instance built an instrument from the German and her translation alone; it never saw a machine translation. It lists 240 points in Chapter 25 where renderings can be compared: realia and period terms (81), places and street names (27), honorifics and forms of address (24), idioms and set phrases (24), names (19), titles and professions (19), dialect and register (14), recurring phrases (13), songs, verse and quotations (10), foreign words (9). For each point it records where her earlier chapters show how she handled the same item, or a comparable one, and classifies whether her Chapter 25 repeats all of those examples, some of them, or none. It also records the chapter's structure: fragmentary sentences, tense, the refrain, the paragraphing. The instrument was finished before the repeat runs were made; when dose 24 was added, a second instance, given only the German and her translation of chapters 1–⁠4 and 25 and the instrument's list of points, added examples from her chapters 1–⁠4. It is not published, because it quotes her translation at length.

After the independent review (see the note at the end of the page), every earlier example was attached to the option it instantiates, across her chapters 1–⁠24, and 111 points were re-examined for the kind of evidence each example is: the same item, a comparable item in a closely comparable context, or a weaker analogy. The instrument's examples and its classifications of her practice are AI judgments that no person has validated.

A translation follows an earlier example at a point when the option it uses matches at least one documented earlier rendering in her chapters 1–⁠24. Whether her own Chapter 25 repeats all, some or none of those examples is a separate question, answered by the instrument's classification.

Scoring. A script matched each text to the instrument's options, testing them in the order the instrument gives, wherever the wording decided it (4,132 decisions across eighteen texts). A blind coder decided the rest (188) and coded the fragments and the tense, in two batches of anonymized texts: first the nine dose runs made by 14 October and C0, then dose 24 and the first study's six. Both batches included her own Chapter 25, unannounced, and the second repeated dose 20 as a check. Four agreement checks between procedures (not estimates of accuracy, since both procedures can share a mistaken category):

Two versions share a category at a point when the instrument codes both with the same option. A shared other counts as a shared category although it can cover different wordings; the shared other codes are reported beside the counts. Structure is compared with her chapter as the same coder read it.

3. A style fingerprint. Burrows's Delta on the 150 most frequent words, a model-free measure from authorship attribution (lower is closer), computed across all the texts in the set: a corpus-dependent distance over frequent words, not a test of whether a reader hears her voice. Surface markers are counted per 1,000 words.

Results

Dose 0 and dose 20 are shown as the mean of their three runs, rounded; the single runs are in Table 6.

Following her earlier examples

Table 1 · Points at which each dose uses an option with a documented earlier rendering, by where the point's latest example sits
Latest example inPointsDosechapters of her English read
0none1ch. 24322–⁠241015–⁠24205–⁠24241–⁠24
ch. 2429192323222223
ch. 22–⁠2336222225242622
ch. 15–⁠2154323838414343
ch. 5–⁠1432151616162524
ch. 1–⁠44222223
All15590101104105118115

Rows: a descriptive grouping by the chapter of the point's most recent earlier example; each point is counted once. A point counts when the option used has at least one documented earlier rendering, which may sit in an earlier chapter than the row's. Shaded: the row's chapters are among the chapters the dose read. Her own Chapter 25 uses such an option at 115 of these 155 points; C0 at 94.

Using an option with a documented earlier rendering rises from 90 of the 155 points at dose 0 to 118 at dose 20 (single runs: 89–⁠92 and 117–⁠119). The one run given all twenty-four earlier chapters reaches 115. Dose 0 already reaches many of her documented renderings without reading any of her English: they are also the renderings a translator without her chapters chooses.

Table 1a · Points newly following an earlier example, compared with all three dose-0 runs, and whether the option used is attested inside the chapters the dose read
RunGains over dose 0attested inside its readingattested only outsideLosses
Dose 19360
Dose 311470
Dose 10121111
Dose 20, run 1242401
Dose 20, run 2242401
Dose 20, run 3232301
Dose 24232302

A gain: the run uses an option with a documented earlier rendering at a point where none of the three dose-0 runs does. A loss: the reverse, where all three dose-0 runs do. Attested inside its reading: the option's documented rendering occurs in one of the chapters this dose read.

Only gains attested inside a dose's reading can have been picked up from it. At dose 20 every gain is attested inside its reading (24, 24 and 23 gains in the three runs), and at dose 10, 11 of 12. At doses 1 and 3 most gains are attested only in chapters those doses did not read (6 of 9 and 7 of 11): they move toward her practice without having seen the example, which points to the instruction, the conventions of her English or the reading of her chapters in general rather than to particular renderings.

Latest example in ch. 24 · 29 points 100% 50% 0 Dose 0: mean 19.0 of 29 (66%) over three runs (18, 19, 20) · row's chapters outside the reading Dose 1: 23 of 29 (79%) · row's chapters inside the reading Dose 3: 23 of 29 (79%) · row's chapters inside the reading Dose 10: 22 of 29 (76%) · row's chapters inside the reading Dose 20: 22 of 29 (76%) in each of three runs · row's chapters inside the reading Dose 24: 23 of 29 (79%) · row's chapters inside the reading 66% 79% 0 1 3 10 20 24 dose Latest example in ch. 22–⁠23 · 36 points 100% 50% 0 Dose 0: mean 22.3 of 36 (62%) over three runs (23, 22, 22) · row's chapters outside the reading Dose 1: 22 of 36 (61%) · row's chapters outside the reading Dose 3: 25 of 36 (69%) · row's chapters inside the reading Dose 10: 24 of 36 (67%) · row's chapters inside the reading Dose 20: mean 25.7 of 36 (71%) over three runs (27, 26, 24) · row's chapters inside the reading Dose 24: 22 of 36 (61%) · row's chapters inside the reading 62% 61% 0 1 3 10 20 24 dose Latest example in ch. 15–⁠21 · 54 points 100% 50% 0 Dose 0: mean 32.0 of 54 (59%) over three runs (32, 31, 33) · row's chapters outside the reading Dose 1: 38 of 54 (70%) · row's chapters outside the reading Dose 3: 38 of 54 (70%) · row's chapters outside the reading Dose 10: 41 of 54 (76%) · row's chapters inside the reading Dose 20: mean 43.3 of 54 (80%) over three runs (43, 44, 43) · row's chapters inside the reading Dose 24: 43 of 54 (80%) · row's chapters inside the reading 59% 80% 0 1 3 10 20 24 dose Latest example in ch. 5–⁠14 · 32 points 100% 50% 0 Dose 0: 15 of 32 (47%) in each of three runs · row's chapters outside the reading Dose 1: 16 of 32 (50%) · row's chapters outside the reading Dose 3: 16 of 32 (50%) · row's chapters outside the reading Dose 10: 16 of 32 (50%) · row's chapters outside the reading Dose 20: mean 25.0 of 32 (78%) over three runs (24, 25, 26) · row's chapters inside the reading Dose 24: 24 of 32 (75%) · row's chapters inside the reading 47% 75% 0 1 3 10 20 24 dose
Figure 2. The first four rows of Table 1 as shares of their points; the ch. 1–⁠4 row is left out. Horizontal: dose. Vertical: share of the row's points at which the dose uses an option with a documented earlier rendering. Labels give the first and last values; every value is in Table 1.

Where her Chapter 25 repeats her earlier examples, and where it departs

Table 2 · Points at which each dose uses her Chapter 25 option, by the instrument's classification of her Chapter 25
Her Chapter 25PointsDose
013102024
repeats all its earlier examples78505861636564
repeats some of them52192324192221
departs from all of them25665644
has no earlier example85282832273025
All points240104115122115121114

The classification of her Chapter 25 is the instrument's, an unvalidated AI judgment. C0 uses her Chapter 25 option at 103 of the 240 points; the first study's six versions at 90–⁠104.

Use of her Chapter 25 option rises from 104 of 240 points at dose 0 to 121 at dose 20, with single runs of 115, 122, 115 and 114 at doses 1, 3, 10 and 24; the sequence is not monotone. The rise lies where the instrument classifies her Chapter 25 as repeating its earlier examples: 50 to 65 of 78 points. Where it classifies her Chapter 25 as departing from them, every run uses her option at 4–⁠7 of 25 points; where her earlier chapters hold no example, at 25–⁠33 of 85. A low score on the departures can reflect choices tied to this chapter's context, weak analogies in the instrument, missing options, or a failure to imitate; these counts do not distinguish them.

Structure

Table 3 · The chapter's structure, compared with hers
MeasureDose
013102024
Fragments she completes, completed too of 42 coded111413121013
Fragments she keeps, kept too of 20 sampled202020202020
Tense as hers of 6 places222222
Refrain: similarity of its returns 0 to 1; hers 0.7320.6870.7000.7000.6880.6930.686
Paragraphs the German has 179179179179179179179

The structural measures show no clear progression toward her chapter across these runs. Of the 42 coded fragmentary sentences that she completes, the dose versions complete between 9 and 14; of 20 sampled fragments she keeps, every version keeps all of them. At the two passages the German narrates in the present tense she uses the past, and no dose version does; of the 6 tense places coded, every run matches her at the same 2. The refrain keeps the wording the shared reading's plan set out ("What sweetness …", where hers reads "How sweet the air was …"), and the similarity of its returns to one another stays between 0.68 and 0.70 (hers: 0.73). Every dose version keeps the German's 179 paragraph breaks exactly; hers joins two pairs of paragraphs and divides one into three. These are the choices the shared plan had already made (see Design); they persisted in every branch.

Style

Table 4 · Style fingerprint and surface markers
TextDelta to her Ch. 25Delta to other machine textsEm dashes per 1,000 wordsContrac­tions per 1,000 words
Dose 0 mean of 3 runs0.9030.4431.6117.68
Dose 10.8490.4716.4120.15
Dose 30.8240.4814.3722.08
Dose 100.8500.4469.0219.66
Dose 20 mean of 3 runs0.8130.4628.2921.51
Dose 240.8430.5036.6723.47
C0 the first study's control brief, same model0.9410.4820.0016.74
Her Chapter 25—0.9053.7726.14
Her chapters 1–⁠242.9817.72

Delta (lower is closer). Delta to other machine texts: the mean distance to the other sixteen machine texts in the set (the ten dose runs, C0 and the first study's six). The first study's six machine versions (Claude Opus 4.7): Delta to her Chapter 25 0.903–⁠1.065, to other machine texts 0.500–⁠0.770; em dashes 8.81–⁠18.41 and contractions 9.66–⁠20.56 per 1,000 words. Two of the dose-0 runs and C0 use spaced en dashes in place of em dashes.

The selected word-frequency profile moves toward her Chapter 25 with reading: from 0.903 at dose 0 (runs 0.894–⁠0.908) to 0.813 at dose 20 (runs 0.791–⁠0.847), with doses 1, 3, 10 and 24 between (0.824–⁠0.850). The first study's six versions are 0.903–⁠1.065 from her chapter, C0 0.941. The dose versions stay much nearer the machine versions than hers: 0.43–⁠0.50 on average from the other sixteen, and 0.30–⁠0.48 from one another, against 0.79–⁠0.91 from her Chapter 25. Delta depends on the texts compared and can reflect shared content and source wording as well as style; no reader judged whether any version continues her voice.

The reference branches adopt some conventions of the published English. Every run at doses 1 to 24 uses American spelling and the closed em dash, as her chapters do; at dose 0, two of the three runs use British spelling and spaced en dashes, the third American spelling and the em dash. These conventions may be the publisher's as much as the translator's. The em dash then becomes more frequent than in her text: about 8 per 1,000 words at dose 20 (7.86–⁠8.74) and 6.67 at dose 24, against 3.77 in her Chapter 25 and 2.98 in her chapters 1–⁠24. Contractions rise from about 18 per 1,000 words at dose 0 to 19.66–⁠23.47 at doses 1 to 24; her Chapter 25 has 26.14, her chapters 1–⁠24 have 17.72. Distance to her chapters 1–⁠24, a different text and so larger for every version, does not change with dose: 1.549–⁠1.571 at dose 0, 1.530–⁠1.586 at dose 20, 1.561 at dose 24, against 1.494 for her Chapter 25.

The first study's 45 points

Table 5 · Every dose and C0 on the first study's measures
MeasureDoseC0
013102024
Same coded choice as her Chapter 25 of 45 points, coded blind17192021222021
chrF to her Chapter 25 0 to 10069.571.772.271.471.972.170.6

The first study's six versions: 11–⁠18 of the 45 points, chrF 67.3–⁠69.6 (the coding as corrected on 14 October 2026). The 45 points were coded blind in two batches, each with two of the first study's versions as unannounced calibration anchors; all four anchors matched their earlier coding at all 45 points. The dose-0 chrF mean is lowered by one run's quotation marks (Table 6).

On the first study's 45 points, agreement with her Chapter 25 rises from 17 of 45 at dose 0 (runs 16–⁠19) to 22 at dose 20 (runs 20–⁠23); doses 1, 3, 10 and 24 lie between (19–⁠21), and C0 is at 21. chrF rises at dose 1 (70.6 for the first dose-0 run, 71.7 at dose 1) and then stays between 71.4 and 72.2. In the first study the six machine versions agreed with one another at 64% of the 45 points and with her at 31%. By chrF the six first runs, doses 0 to 24, score 86.3–⁠89.8 against one another (mean of both directions).

Run-to-run variation

Table 6 · Three runs each of dose 0 and dose 20, from the identical saved reading
MeasureDose 0runs 1 · 2 · 3Dose 20runs 1 · 2 · 3
Uses her Chapter 25 option of 240 points108 · 98 · 106121 · 118 · 124
Uses an option with an earlier rendering of 155 points90 · 89 · 92118 · 119 · 117
Same coded choice as her Chapter 25 of the first study's 45 points19 · 16 · 1722 · 20 · 23
Fragments handled as she does of 62 coded29 · 29 · 3028 · 30 · 29
Delta to her Chapter 250.907 · 0.894 · 0.9080.791 · 0.847 · 0.800
chrF to her Chapter 2570.6 · 67.7 · 70.272.3 · 71.6 · 71.9
Em dashes per 1,000 words0.00 · 0.00 · 4.847.86 · 8.28 · 8.74
Contractions per 1,000 words17.84 · 16.76 · 18.4322.67 · 20.24 · 21.63
SpellingBritish · British · AmericanAmerican · American · American
Dialogue in quotation marksdouble · single · doubledouble · double · double
Same category as another run of the dose of 240 points; pairs 1–⁠2 · 1–⁠3 · 2–⁠3222 · 220 · 219211 · 206 · 216
of which a shared other same pairs5 · 5 · 64 · 4 · 5

Run 2 at dose 0 sets its dialogue in single quotation marks, which lowers its chrF; with every quotation mark counted as the same character it scores 70.3, and no other text moves by more than 0.1.

Because the three runs of a dose start from the identical saved reading, their differences show how much a single run of this workflow varies. On the counts, on chrF and on the style measures, the three dose-20 runs lie outside the range of the three dose-0 runs; on fragments they do not differ. Within one dose, two runs put 18 to 34 of the 240 points in different instrument categories. The totals of single runs at doses 1, 3, 10 and 24 (115, 122, 115 and 114 of 240; 101, 104, 105 and 115 of 155) should be read with this variation in mind. Three runs at each end do not establish a dose–response curve.

Since June

The first study's six machine versions were made in June 2026 by Claude Opus 4.7, under six different briefs, from five readings of the novel: D-let and D-aim share one, forked at the moment of translation (see the Method). This study's versions were made in October 2026 by Claude Opus 5.5. One October run, C0, repeats the first study's control arm C on the new model: the same brief and step messages, verbatim, with a reading of its own. C and C0 are the nearest this material comes to the same translation made twice, in June and in October.

Table 7 · One brief, two models
MeasureCJune · Opus 4.7C0October · Opus 5.5
Same coded choice as her Chapter 25 of the first study's 45 points1721
Uses her Chapter 25 option of 240 points104103
Uses an option with an earlier rendering of 155 points9694
Fragments handled as she does of 62 coded2929
Tense as hers of 6 places12
chrF to her Chapter 2569.670.6
Delta to her Chapter 251.0010.941
Em dashes per 1,000 words12.810.00
Contractions per 1,000 words17.6216.74
SpellingAmericanBritish
Words4,3524,359

C and C0 share a category at 189 of the 240 points (5 of them a shared other) and make the same coded choice at 33 of the first study's 45. C0 sets 6 spaced en dashes in the whole chapter and no em dash.

The single C and C0 outputs have similar aggregate scores, but this comparison changes the model, the independent reading and the runtime around them together, and June's runtime settings are not all recorded; it does not isolate a model effect. Their conventions differ: C sets about 13 em dashes per 1,000 words and spells American, C0 sets none and spells British. Point by point they differ more than their totals suggest: at 51 of the 240 points they fall in different categories, about as often as two of June's differently briefed versions do (Table 9).

Table 8 · June and October, every version
VersionsSame coded choice as her Ch. 25of the 45 pointsUses her Ch. 25 optionof 240Uses an option with an earlier renderingof 155Fragments as she handles themof 62Em dashesper 1,000 wordsSpelling
June the first study's six · Opus 4.7, six briefs11–⁠1890–⁠10487–⁠9627–⁠328.81–⁠18.41three American, three British
October, none of her English C0 and the three dose-0 runs16–⁠2198–⁠10889–⁠9429–⁠300.00–⁠4.84three British, one American
October, after her chapters doses 1 to 24 · seven runs19–⁠23114–⁠124101–⁠11928–⁠324.37–⁠9.02American
Her Chapter 25——115—3.77American

Her Chapter 25 is the reference for the first two columns; the third scores it with the same instrument as the machine versions.

Three things differ between the June and October outputs. These comparisons mix model, brief, reading and runtime; they describe the outputs, not the contribution of each.

What did not change is what the first study already found. In every version, June or October, 27–⁠32 of the 62 fragments are handled as she handles them, 1–⁠3 of the 6 tense places match hers, and the refrain's returns stay 0.68–⁠0.70 similar to one another, against her 0.73. Where the instrument classifies her Chapter 25 as departing from its earlier examples, every version uses her option at 3–⁠8 of the 25 points.

What the results show

Repeat runs and alternatives

Translation studies has long asked how much of a translation the source decides. The repeat runs show how much the outputs of one machine workflow differ when nothing is changed but the run; they cannot show how much of her translation was open, or why she chose as she did.

Table 9 · How often two versions share a category, of the 240 points
Two versionsPairsSame categoryshared other per pair
Two runs of dose 0 the identical saved reading and instructions391.2–⁠92.5%5–⁠6
Two runs of dose 20 likewise; each run includes studying her chapters385.8–⁠90.0%4–⁠5
C0 and a dose-0 run one model, two briefs, separate readings385.4–⁠88.3%6–⁠7
Two of the six first runs, doses 0 to 24 one reading, different amounts of her English1575.8–⁠90.8%2–⁠10
Two of the first study's six one model, six briefs, five readings1571.2–⁠87.5%5–⁠11
C and C0 one brief, two models, separate readings178.8%5
A machine version and her Chapter 25 every machine version in this study and the first1737.5–⁠51.7%—

Two versions share a category at a point when the instrument codes both with the same option; each version's choices are those scored above (the script's where the wording decided, the blind coder's elsewhere). A shared other counts as a shared category although it can cover different wordings. The last row is the use of her Chapter 25 option in Table 2. The 240 points are not 240 independent observations: repeated terms and related choices are correlated.

Run again from the identical saved reading, with identical instructions, the workflow puts 18 to 34 of the 240 points in different instrument categories in a second run. At 29 points the three dose-0 runs do not all agree; at 26 of them the script decided all three runs from the wording, so the difference lies in the texts, not in the coding. The least settled layer is the house style: of the three dose-0 runs, two spell British and set spaced en dashes, one spells American and sets closed em dashes, and one sets its dialogue in single quotation marks. Once her chapters have been read, every run takes the published book's conventions.

The splits are not spread evenly. In both sets of three runs they gather in period realia, idioms, dialect and verse (22 and 30 of those 129 points) and are rare in names, titles and foreign words (1 of 47 in each). Process research on human translators finds that their renderings also vary most where the source is hard (Dragsted 2012).

The machine runs often share a category that differs from her Chapter 25: of the 211 points on which the three dose-0 runs agree, her Chapter 25 uses another option at 117. These counts do not determine which rendering the source better supports. At the 29 points where the three runs split, her option is the runs' majority choice at 10, a minority choice at 10 and none of theirs at 9.

What the literature says

Translation theory has long described choices that the source does not fix. Levý (1967) distinguished necessary from unnecessary and motivated from unmotivated decisions, described how the wider context motivates a choice, and observed that translators settle for the solution that gives most effect for least effort. Pym (2003) defined competence as producing more than one viable version and choosing one quickly, with justified confidence. Toury (1995) and Chesterman (1997) turned attention to the norms that make some choices regular in a time and place, while keeping questions of assessment open.

Studies of translations bear this out. Annotators who encoded the acceptable English translations of news sentences in networks found that the networks represent billions of possible translations per sentence, yet reference translations made independently still fell outside them; about half of the remaining differences were optional function words, near-equivalents and spelling variants (Dreyer and Marcu 2012). Five literary translators of one Hemingway story into German resolved its open points differently, according to their stylistic awareness and preferences, knowledge and habitus (Kolb 2013); two German translations of one Fitzgerald novel, published the same year, differ in small recurring choices enough to shift the novel's emphasis (Winters 2007; 2009). These differences are compatible with purposeful interpretation; they say nothing about the reasons behind any particular translator's choices.

For a language model, variation between runs is expected. Translation is uncertain in itself, with many valid translations of a sentence, and translation models spread their probability widely across them (Ott et al. 2018); hosted models set to behave deterministically still give different outputs from run to run (Atıl et al. 2025, on tasks other than translation). This study's literature search found no study that measures run-to-run variation in literary translation by a language model; the search was not exhaustive. The nearest parallel to the convergence measured here is Zhang, Zhao and Eger (2025): in four language pairs, German–English among them, machine translations overlapped with one another and stayed closer to the source's syntax, while the published human translation stood apart.

This study measures agreement, not quality; nothing in it says which choice at a point is better. Whether a difference in quality can be seen at all depends on who judges and how. Judges of machine translation agree only weakly on graded scores, and a judge rescoring the same items agrees with their own earlier scores only moderately (Callison-Burch et al. 2007). Professional translators marking errors with the whole document in view ranked every human translation above every machine system for English–German and Chinese–English news, and still scored three human translations of the same texts clearly differently (Freitag et al. 2021). For literary texts, student raters using an error typology judged nearly 60% of human translations no better than machine output, while best–worst comparison picked out the human translation 80–⁠100% of the time (Zhang, Zhao and Eger 2025). Avid readers preferred published human translations in close reading of aligned passages, yet recognized the human version little better than chance and tended to prefer whichever version they believed was human (Ferstler et al. 2026).

One consequence concerns measurement. A single reference translation is one of many defensible versions, and closeness to it rewards matching its conventions as well as its choices (Freitag, Grangier and Caswell 2020). Here, one dose-0 run scores 67.7 chrF against her chapter, against 70.6 and 70.2 for the other two, only because it sets its dialogue in single quotation marks; with every quotation mark counted as the same character it scores 70.3. The branches that read her chapters better match selected editorial conventions of the published book. Literary quality, and whether reusing a rendering in a new context is an improvement, were not evaluated.

Limits

Materials

The six first-run translations and the statements their branches wrote, unedited; each file opens with a one-line header. The translations are machine translations of Gabriele Tergit's Chapter 25.

The instrument, its extension, the evidence review and the working analyst's report are not published, because they quote her translation at length; the repeat runs and C0 are not published here. Her translation is published by New York Review Books and is not reproduced here.

References