Benchmark Almanac

Data Agent Benchmark

Qwen 3.8 Max 99.2% leads since August 2026
Not in model cards

Agents answer business questions over data split across several database systems, with duplicated and inconsistent records and key facts buried in text. The 104 queries cover 17 datasets and four database systems, based on a study of companies building data agents in six industries. Scores are pass@1 against known answers.

The leaderboard takes pull-request submissions of whole agent systems, many from companies, and had entries dated 2026-10. About 200 GitHub stars.

Released
March 2026
Kind
Data science and SQL
Level
Expert
Scored
Checked automatically
Answers
Agent task
Tasks
All public
Strongest model tested
Claude Opus 5.5 #4 on the capability index
Last model added
September 2026
Scores refreshed
November 12th, 2026

In the authors’ words

However, building reliable data agents remains difficult because real enterprise data is fragmented across many heterogeneous database systems, with duplicated and inconsistent data, and key information often buried in unstructured text, requiring agents to go beyond just writing SQL or data science scripts to answer questions. Existing benchmarks tackle only individual pieces of this end-to-end workflow (e.g., text-to-SQL over a single database) and are increasingly saturated and contaminated. We present a new benchmark for LLM agents, the Data Agent Benchmark (DAB), grounded in a study of enterprises building production data agents across six industries. DAB comprises 104 queries across 17 datasets and 4 database management systems. On DAB, the best state-of-the-art agent achieves only 57% pass@1. We analyze agent failure modes and distill takeaways for future data-agent development. Our benchmark and experiment code are published at github.com/ucbepic/DataAgentBench.

Abstract of Can AI Agents Answer Your Data Questions? A Benchmark for Data Agents (arXiv:2603.20576, CC0)
32
Entries on its own leaderboard, 18 models we track

Qwen 3.8 Max leads with 99.2% among models released by September 2026

Best score per entry from the benchmark's own leaderboard, read on November 12th, 2026. Where a model ran with several settings or harnesses, we keep its best. Names in gray aren't in our model list: fine-tunes, agent systems, products and older models. They don't count toward leaders.

The newest model with a score here came out in September 2026, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 Qwen 3.8 Max Pass@1; tuned prompt: yes; hints: yes; trials: 5 99.2%
  2. 2 Claude Opus 5.5 Pass@1; tuned prompt: yes; hints: yes; trials: 5 97.5%
  3. 3 GLM-5.2 Pass@1; tuned prompt: yes; hints: yes; trials: 5 96.7%
  4. 4 GLM-5.3 + Jev-1.13.0 [combined system] Pass@1; tuned prompt: yes; hints: yes; trials: 5 96.3%
  5. 5 Claude Opus 5 Pass@1; high; tuned prompt: yes; hints: yes; trials: 5 95.4%
  6. 6 DeepSeek V4.1 Flash Pass@1; tuned prompt: yes; hints: yes; trials: 5 92.3%
  7. 7 Claude-Opus-5.5 + Jev-1.14 [combined system] Pass@1; tuned prompt: no; hints: yes; trials: 5 88.6%
  8. 8 GPT-6-Astra + Jev-1.13.0 [combined system] Pass@1; high; tuned prompt: yes; hints: yes; trials: 5 87.7%
  9. 9 Fable-5 + Claude-Opus-4.7 [combined system] Pass@1; tuned prompt: yes; hints: yes; trials: 5 86.2%
  10. 10 Fable-5 + Claude-Opus-4.8 [combined system] Pass@1; tuned prompt: yes; hints: yes; trials: 5 84.1%
  11. 11 Muse Spark 1.3 Pass@1; medium; tuned prompt: yes; hints: yes; trials: 5 82%
  12. 12 Claude Opus 4.7 Pass@1; tuned prompt: yes; hints: yes; trials: 5 81.8%
  13. 13 Claude Opus 4.8 Pass@1; tuned prompt: yes; hints: yes; trials: 5 80.4%
  14. 14 Claude-Opus-5 + Cartographer [combined system] Pass@1; tuned prompt: yes; hints: yes; trials: 5 80.2%
  15. 15 GPT-5.5 Pass@1; tuned prompt: no; hints: yes; trials: 5 78.5%
  16. 16 GLM-5.3 Pass@1; tuned prompt: yes; hints: yes; trials: 5 78.3%
  17. 17 GPT-5.6-Luna-Max + Cartographer [combined system] Pass@1; tuned prompt: no; hints: yes; trials: 5 77.5%
  18. 18 GPT-5.5 + Claude Sonnet 4.6 [combined system] Pass@1; tuned prompt: no; hints: yes; trials: 5 75.9%
  19. 19 Qwen3.8-Flash-Next Pass@1; tuned prompt: no; hints: yes; trials: 5 70.9%
  20. 20 GPT-5.6 Luna Pass@1; tuned prompt: no; hints: yes; trials: 5 69.6%
  21. 21 Claude Sonnet 4.6 Pass@1; tuned prompt: no; hints: yes; trials: 5 68.2%
  22. 22 Claude Sonnet 4.6 + GPT5.5-mini + Claude Haiku 4.5 [combined system] Pass@1; tuned prompt: no; hints: yes; trials: 5 66%
  23. 23 Claude Opus 4.6 Pass@1; tuned prompt: no; hints: yes; trials: 5 61%
  24. 24 Claude-Sonnet-4.6 + Cartographer [combined system] Pass@1; tuned prompt: no; hints: yes; trials: 5 60.9%
  25. 25 Gemini 3.1 Pro Pass@1; tuned prompt: no; hints: yes; trials: 5 60%
  26. 26 Gemini 3 Pro Pass@1; tuned prompt: no; hints: yes; trials: 50 46.6%
  27. 27 gpt-oss-safeguard-120b Pass@1; tuned prompt: no; hints: yes; trials: 5 45.5%
  28. 28 GPT-5 mini Pass@1; tuned prompt: no; hints: yes; trials: 50 36.6%
  29. 29 GPT-5.2 Pass@1; tuned prompt: no; hints: yes; trials: 50 29.9%
  30. 30 Kimi-K2 [snapshot unspecified] Pass@1; tuned prompt: no; hints: yes; trials: 50 29.3%
  31. 31 Gemini-2.0-Flash [snapshot unspecified] Pass@1; tuned prompt: no; hints: yes; trials: 5 16.7%
  32. 32 Gemini-2.5-Flash [snapshot unspecified] Pass@1; tuned prompt: no; hints: yes; trials: 50 10.5%

Source: Official Data Agent Benchmark leaderboard

#EntryScoreSettingDateSource
1 Qwen 3.8 Max 99.2% Pass@1; tuned prompt: yes; hints: yes; trials: 5, DataGallery + semantic layer Aug 2026 Official leaderboard
2 Claude Opus 5.5 97.5% Pass@1; tuned prompt: yes; hints: yes; trials: 5, Phoenix-CLI tuned v9 Sep 2026 Official leaderboard
3 GLM-5.2 96.7% Pass@1; tuned prompt: yes; hints: yes; trials: 5, Scout v2 (OceanBase Lab) Jun 2026 Official leaderboard
4 GLM-5.3 + Jev-1.13.0 [combined system] 96.3% Pass@1; tuned prompt: yes; hints: yes; trials: 5, Datasage Oct 2026 Official leaderboard
5 Claude Opus 5 95.4% Pass@1; high; tuned prompt: yes; hints: yes; trials: 5, Camber v2 Jul 2026 Official leaderboard
6 DeepSeek V4.1 Flash 92.3% Pass@1; tuned prompt: yes; hints: yes; trials: 5, DUO (Greatyu × CUHK) Sep 2026 Official leaderboard
7 Claude-Opus-5.5 + Jev-1.14 [combined system] 88.6% Pass@1; tuned prompt: no; hints: yes; trials: 5, Scrybe (AlphaSygnal) Oct 2026 Official leaderboard
8 GPT-6-Astra + Jev-1.13.0 [combined system] 87.7% Pass@1; high; tuned prompt: yes; hints: yes; trials: 5, DVIndex Sep 2026 Official leaderboard
9 Fable-5 + Claude-Opus-4.7 [combined system] 86.2% Pass@1; tuned prompt: yes; hints: yes; trials: 5, Sentinel (Actioneer) Jul 2026 Official leaderboard
10 Fable-5 + Claude-Opus-4.8 [combined system] 84.1% Pass@1; tuned prompt: yes; hints: yes; trials: 5, Alkera Jul 2026 Official leaderboard
11 Muse Spark 1.3 82% Pass@1; medium; tuned prompt: yes; hints: yes; trials: 5, DataTrail v1 Sep 2026 Official leaderboard
12 Claude Opus 4.7 81.8% Pass@1; tuned prompt: yes; hints: yes; trials: 5, SCRIBE (Actioneer) Apr 2026 Official leaderboard
13 Claude Opus 4.8 80.4% Pass@1; tuned prompt: yes; hints: yes; trials: 5, Alkera May 2026 Official leaderboard
14 Claude-Opus-5 + Cartographer [combined system] 80.2% Pass@1; tuned prompt: yes; hints: yes; trials: 5, LabRat Aug 2026 Official leaderboard
15 GPT-5.5 78.5% Pass@1; tuned prompt: no; hints: yes; trials: 5, Spacedock (Recce) Apr 2026 Official leaderboard
16 GLM-5.3 78.3% Pass@1; tuned prompt: yes; hints: yes; trials: 5, DG Aug 2026 Official leaderboard
17 GPT-5.6-Luna-Max + Cartographer [combined system] 77.5% Pass@1; tuned prompt: no; hints: yes; trials: 5, LabRat Jul 2026 Official leaderboard
18 GPT-5.5 + Claude Sonnet 4.6 [combined system] 75.9% Pass@1; tuned prompt: no; hints: yes; trials: 5, Altimate Code Jun 2026 Official leaderboard
19 Qwen3.8-Flash-Next 70.9% Pass@1; tuned prompt: no; hints: yes; trials: 5 Aug 2026 Official leaderboard
20 GPT-5.6 Luna 69.6% Pass@1; tuned prompt: no; hints: yes; trials: 5, fabric-rlm Jul 2026 Official leaderboard
21 Claude Sonnet 4.6 68.2% Pass@1; tuned prompt: no; hints: yes; trials: 5, Altimate Code Feb 2026 Official leaderboard
22 Claude Sonnet 4.6 + GPT5.5-mini + Claude Haiku 4.5 [combined system] 66% Pass@1; tuned prompt: no; hints: yes; trials: 5, MinusX May 2026 Official leaderboard
23 Claude Opus 4.6 61% Pass@1; tuned prompt: no; hints: yes; trials: 5, Pi Coding Agent Feb 2026 Official leaderboard
24 Claude-Sonnet-4.6 + Cartographer [combined system] 60.9% Pass@1; tuned prompt: no; hints: yes; trials: 5, LabRat Jun 2026 Official leaderboard
25 Gemini 3.1 Pro 60% Pass@1; tuned prompt: no; hints: yes; trials: 5, PromptQL Feb 2026 Official leaderboard
26 Gemini 3 Pro 46.6% Pass@1; tuned prompt: no; hints: yes; trials: 50 Nov 2025 Official leaderboard
27 gpt-oss-safeguard-120b 45.5% Pass@1; tuned prompt: no; hints: yes; trials: 5, nQuery Jul 2026 Official leaderboard
28 GPT-5 mini 36.6% Pass@1; tuned prompt: no; hints: yes; trials: 50 Aug 2025 Official leaderboard
29 GPT-5.2 29.9% Pass@1; tuned prompt: no; hints: yes; trials: 50 Dec 2025 Official leaderboard
30 Kimi-K2 [snapshot unspecified] 29.3% Pass@1; tuned prompt: no; hints: yes; trials: 50 Mar 2026 Official leaderboard
31 Gemini-2.0-Flash [snapshot unspecified] 16.7% Pass@1; tuned prompt: no; hints: yes; trials: 5, Oracle Forge — Team Cohere Apr 2026 Official leaderboard
32 Gemini-2.5-Flash [snapshot unspecified] 10.5% Pass@1; tuned prompt: no; hints: yes; trials: 50 Mar 2026 Official leaderboard

4 models have held number one on the official leaderboard since its release in March 2026

Lab claims count from the day the card came out, independent runs from the model’s release.

Anthropic Z.ai Qwen
Own leaderboard Passed 85% in Jun 2026, by GLM-5.2
Qwen 3.8 Max 99.2%

Source: Official Data Agent Benchmark leaderboard

GLM-5.2 on the official leaderboard passed 85% in June 2026

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

On the benchmark’s own leaderboard Best so far
0% 20% 40% 60% 80% 100% 2026 Near the ceiling (85%) Qwen 3.8 Max Claude Opus 4.7 Claude Sonnet 4.6 Claude Opus 4.6 Gemini 3 Pro GPT-5 mini 0% 20% 40% 60% 80% 100% 2026 Near the ceiling (85%) Qwen 3.8 Max Claude Opus 4.7

Source: Official Data Agent Benchmark leaderboard

No lab model card reports it yet

We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark.

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