Benchmark Almanac

GDP.pdf

GPT-6.1 Sol 35% leads since Sep 2026 In use

100 expert multimodal reasoning tasks over real economically important PDF documents. Scored by rubric-criteria pass rate.

Part of the Artificial Analysis Intelligence Index v4.3.2 (10% weight). The HF dataset returned 401 to an anonymous fetch (may be gated).

In the authors’ words

A large share of day-to-day work in professional domains happens inside PDF files: benefits packets, leases, datasheets, clinical guidelines, construction plans. Benchmarks for document AI have generally measured the required capabilities in isolation: OCR, layout analysis, chart reasoning, table QA, document VQA. A high score on any one of them does not necessarily reveal whether a model can answer a realistic question that someone in the field would actually ask about a specific PDF. GDP_pdf is a benchmark built to measure this directly. It consists of question-document pairs authored by working professionals in ten fields, and a candidate question was kept only when at least two frontier multimodal models failed it in a way that mattered: a wrong answer, missed decisive evidence, or a fabricated claim, rather than a superficial difference such as style. Each item comes with a rubric of atomic criteria, so we can report a graded rubric score as well as a strict task-level pass rate, and each item is tagged against a taxonomy of eleven capabilities in three tiers, spanning text extraction and grounding, table and chart comprehension, cross-referencing, spatial reasoning, and abstention on unsupported queries. We report results for seventeen frontier models on the 100-item benchmark: the best model passes only 30.7% of the items and the worst passes 2%. Most errors trace back to a small set of recurring loss patterns: misaligned tables, misread charts, skipped footnotes and exclusions, miscounted floor-plan symbols, scan noise, and amendments that supersede earlier text.

Abstract of GDP.pdf: Benchmarking Grounded Multimodal Reasoning over Professional PDF Documents (arXiv:2607.11192, CC0)
Made by Surge AI Released Jul 2026 Documents, charts and text in images All tasks public Last in a launch post Oct 2026 Last model added Oct 2026 Scores refreshed 31 Oct 2026
Level
Expert Specialists with years of training, often over hours of work
Scored
Graded by a model A language model scores each response, usually against a rubric.
Answers
Open-ended Free-form text, documents, designs or media judged as a whole.
39
Models scored in Epoch AI data
12
Launch posts list it, from 8 labs
8
System cards report it, from 3 labs

GPT-6.1 Sol leads with 35%

Best score per model in Epoch AI’s data. Where a model ran with several settings or harnesses, we keep its best.

  1. 1 GPT-6.1 Sol max 35%
  2. 2 GPT-6 Astra max 34.2%
  3. 3 Claude Sonnet 5.5 max 31.4%
  4. 4 Muse Wonder max 30.8%
  5. 5 GPT-5.6 Sol unknown thinking 30.7%
  6. 6 Claude Opus 5.5 max 30.6%
  7. 7 Claude Fable 5 30%
  8. 8 Claude Fable 5.1 high 29.6%
  9. 9 Gemini 4 Argon high 28.4%
  10. 10 Muse Spark 1.3 27.6%
  11. 11 GPT-6 Sol max 26.4%
  12. 12 GPT-5.5 xhigh 26%
  13. 13 GPT-5.6 Terra unknown thinking 24.7%
  14. 14 Claude Opus 4.8 max 24%
  15. 15 Claude Opus 5 max 24%
  16. 16 Gemini 3.7 Flash high 23.8%
  17. 17 Gemini 3.8 Flash medium 23.4%
  18. 18 Qwen 3.8 Max xhigh 23.2%
  19. 19 GPT-6 Luna max 23%
  20. 20 Grok 4.7 xhigh 22.8%
  21. 21 GPT-5.6 Luna unknown thinking 22.7%
  22. 22 Claude Opus 4.7 max 21%
  23. 23 DeepSeek V4.1 Flash max 19.8%
  24. 24 Kimi K3 max 19%
  25. 25 Claude Sonnet 4.6 max 18%
  26. 26 Grok 4.6 xhigh 17.2%
  27. 27 Gemini 3.1 Pro 17%
  28. 28 Qwen3.8 Flash xhigh 16.6%
  29. 29 Muse Spark 1.2 xhigh 16%
  30. 30 Muse Spark 1.1 15%
  31. 31 Gemini 3.5 Flash 14%
  32. 32 Grok 4.5 high 14%
  33. 33 Gemini 3.6 Flash 14%
  34. 34 GLM-5.3-Flash max 14%
  35. 35 Kimi K2.6 12%
  36. 36 Gemini 3 Flash 10%
  37. 37 Gemini 3.5 Flash-Lite high 10%
  38. 38 Grok 4.3 Beta 8.00%
  39. 39 Nova 2.0 Pro Preview 2.00%
#ModelScoreSettingDateSource
1 GPT-6.1 Sol 35% max Sep 2026 Epoch AI
2 GPT-6 Astra 34.2% max Sep 2026 Epoch AI
3 Claude Sonnet 5.5 31.4% max Sep 2026 Epoch AI
4 Muse Wonder 30.8% max Oct 2026 Epoch AI
5 GPT-5.6 Sol 30.7% unknown thinking Jul 2026 Epoch AI
6 Claude Opus 5.5 30.6% max Sep 2026 Epoch AI
7 Claude Fable 5 30% Jun 2026 Epoch AI
8 Claude Fable 5.1 29.6% high Sep 2026 Epoch AI
9 Gemini 4 Argon 28.4% high Sep 2026 Epoch AI
10 Muse Spark 1.3 27.6% Sep 2026 Epoch AI
11 GPT-6 Sol 26.4% max Sep 2026 Epoch AI
12 GPT-5.5 26% xhigh Apr 2026 Epoch AI
13 GPT-5.6 Terra 24.7% unknown thinking Jul 2026 Epoch AI
14 Claude Opus 4.8 24% max May 2026 Epoch AI
15 Claude Opus 5 24% max Jul 2026 Epoch AI
16 Gemini 3.7 Flash 23.8% high Aug 2026 Epoch AI
17 Gemini 3.8 Flash 23.4% medium Sep 2026 Epoch AI
18 Qwen 3.8 Max 23.2% xhigh Aug 2026 Epoch AI
19 GPT-6 Luna 23% max Sep 2026 Epoch AI
20 Grok 4.7 22.8% xhigh Sep 2026 Epoch AI
21 GPT-5.6 Luna 22.7% unknown thinking Jul 2026 Epoch AI
22 Claude Opus 4.7 21% max Apr 2026 Epoch AI
23 DeepSeek V4.1 Flash 19.8% max Sep 2026 Epoch AI
24 Kimi K3 19% max Jul 2026 Epoch AI
25 Claude Sonnet 4.6 18% max Feb 2026 Epoch AI
26 Grok 4.6 17.2% xhigh Aug 2026 Epoch AI
27 Gemini 3.1 Pro 17% Feb 2026 Epoch AI
28 Qwen3.8 Flash 16.6% xhigh Aug 2026 Epoch AI
29 Muse Spark 1.2 16% xhigh Aug 2026 Epoch AI
30 Muse Spark 1.1 15% Jul 2026 Epoch AI
31 Gemini 3.5 Flash 14% May 2026 Epoch AI
32 Grok 4.5 14% high Jul 2026 Epoch AI
33 Gemini 3.6 Flash 14% Jul 2026 Epoch AI
34 GLM-5.3-Flash 14% max Aug 2026 Epoch AI
35 Kimi K2.6 12% Apr 2026 Epoch AI
36 Gemini 3 Flash 10% Dec 2025 Epoch AI
37 Gemini 3.5 Flash-Lite 10% high Jul 2026 Epoch AI
38 Grok 4.3 Beta 8.00% Apr 2026 Epoch AI
39 Nova 2.0 Pro Preview 2.00% Dec 2025 Epoch AI

Labs report scores for 15 models in their cards. We plot every source in the charts below.

4 models have held number one since its release in Jul 2026

Lab claims count from the day the card came out, independent runs from the model’s release. We draw one row each for Epoch AI’s runs and what labs claim in their cards.

Anthropic OpenAI
Epoch AI runs 4 leaders
Lab claims Passed 85% in Sep 2026, by Claude Fable 5.1

The best score passed 85% in Sep 2026

All the scores we have, one dot each, so a model tested at several settings appears more than once.

Run or collected by Epoch AI Reported by the lab in its model card Best so far
0% 20% 40% 60% 80% 100% 2026 2027 Near the ceiling (85%) Claude Fable 5.1 Claude Sonnet 5 Claude Fable 5 Claude Opus 4.7 Gemini 3 Flash Nova 2.0 Pro Preview 0% 20% 40% 60% 80% 100% 2026 2027 Near the ceiling (85%) Claude Fable 5.1 Claude Sonnet 5

8 labs put it in a launch post in the last six months

Launch posts from every lab that has listed it, one tick per post. Tall colored ticks include it, and short gray ones leave it out.

Anthropic
OpenAI
Google DeepMind
StepFun
Meta
NVIDIA
MiniMax
Moonshot AI
DateLaunch postScoreAs the post writes it
24 Oct 2026 Kimi K3.1 Pro 34.6 GDP.pdf
19 Oct 2026 MiniMax-M3.1-Flash 20.8 GDP.pdf AA
15 Oct 2026 Nemotron 3.5 Super VL 6.6 GDP.pdf [offline] 6.6 (AA 6.6)
12 Oct 2026 Muse Wonder 30.8 GDP.pdf
12 Oct 2026 Muse Wonder Full 33.2 GDP.pdf
29 Sep 2026 GPT-6.1 Sol 32 GDP.pdf (GPT-6.1 Sol High)
20 Sep 2026 Step 5 Preview 14.8 GDP.pdf
2 Sep 2026 Gemini 3.8 Flash 35 GDP.PDF (All pass rate)
13 Aug 2026 Gemini 3.7 Flash 34 GDP.pdf
9 Jul 2026 GPT-5.6 Luna 22.7 gdp.pdf
9 Jul 2026 GPT-5.6 Terra 24.7 gdp.pdf
9 Jun 2026 Claude Fable 5 29.8 Knowledge work vision GDP.pdf (no tools)

8 system cards report it, from 3 labs

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
12 Oct 2026 Muse Wonder model card 30.8 GDP.pdf, Surge reported score, Muse Wonder (max) (capabilities table image, page 3) Capabilities
12 Oct 2026 Muse Wonder Full model card 33.2 GDP.pdf, Surge reported score, Muse Wonder Full (max) (capabilities table image, page 3) Capabilities
2 Sep 2026 Gemini 3.8 Flash model card 35 GDP.PDF, all pass rate (results table, p.5) Capabilities
1 Sep 2026 Claude Fable 5.1 system card 85.4 GDP.pdf mean criteria pass rate, no tools, Claude Opus 4.7 judge; 85.1% with tools (8.14.4) Capabilities
13 Aug 2026 Gemini 3.7 Flash model card 34 GDP.pdf (results table, p.5) Capabilities
24 Jul 2026 Claude Opus 5 system card 83.4 GDP.pdf mean criteria pass rate, no tools, Claude Opus 4.7 judge, five runs (85.5% with tools) (8.12.4) Capabilities
30 Jun 2026 Claude Sonnet 5 system card 67.5 GDP.pdf mean criteria pass rate without tools, max effort, five runs, Opus 4.7 judge (81.6% with tools) (8.10.1, Figure 8.10.1.A) Capabilities
9 Jun 2026 Claude Fable 5 system card 29.8 GDP.pdf strict pass rate, run by Surge AI on 100 prompts, adaptive thinking at max effort, no tools, Gemini 3 Flash grader (Table 8.1.A, 8.16.1) Capabilities

More in Vision

All 234 in Vision
  • MMMU In use 11.5K college-level multimodal questions across 30 subjects. Multiple-choice and open accuracy. GPT-5.1 85.4%
  • MMMU-Pro In use Harder MMMU: college-level multimodal questions with more options and vision-only inputs to remove text shortcuts. Kimi K3.1 Pro 84.1%
  • CharXiv In use Chart understanding on real arXiv figures. Reasoning questions require synthesizing information from complex charts. Claude Fable 5 93.5%
  • MATH-Vision (MathVision) In use 3,040 competition math problems with visual context. Answer accuracy. Qwen 3.8 Max 97.7%
  • ChartQA In use Models answer human-written and generated questions about chart images that need visual and arithmetic reasoning. Scored by relaxed accuracy with a 5 percent numeric tolerance. Command A Vision 90.9%
  • DocVQA In use Models answer 50,000 questions about 12,000 scanned document images by reading their text and layout. Scoring is ANLS, a string similarity to reference answers. Seed1.5-VL 96.9%