Benchmark Almanac

MBABench 2.0

GPT-6 Astra 15.8% leads since October 2026
Not in model cards

Agents build spreadsheet financial models for 101 tasks written by finance experts. A task passes only if every number matches the reference and the workbook meets a quality bar.

20 agents in their own harnesses at launch. Only one agent passed any of the 20 Hard tasks. Funded by Snorkel Open Benchmarks Grants.

Released
October 2026
Kind
Finance
Level
Expert
Scored
Checked automatically
Answers
Agent task
Tasks
All public
Strongest model tested
GPT-6 Astra #3 on the capability index
Last model added
September 2026
Scores refreshed
November 12th, 2026
9
Entries on its own leaderboard, 5 models we track

GPT-6 Astra leads with 15.8% 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 GPT-6 Astra xhigh 15.8%
  2. 2 Claude Fable 5.1 max 7.90%
  3. 3 Claude Opus 5 max 4.00%
  4. 4 GPT-6-Pro 3.00%
  5. 5 Qwen 3.8 (variant unspecified) xhigh 1.00%
  6. 6 Grok 4.6 xhigh 1.00%
  7. 7 Gemini 3.8 (variant unspecified) high 0%
  8. 8 Sol (variant unspecified) xhigh 0%
  9. 9 Kimi K3 max 0%

Source: Official MBABench 2.0 leaderboard

#EntryScoreSettingDateSource
1 GPT-6 Astra 15.8% xhigh, Codex Sep 2026 Official leaderboard
2 Claude Fable 5.1 7.90% max, Claude Code Sep 2026 Official leaderboard
3 Claude Opus 5 4.00% max, Claude Code Jul 2026 Official leaderboard
4 GPT-6-Pro 3.00% ChatGPT Official leaderboard
5 Qwen 3.8 (variant unspecified) 1.00% xhigh, Codex Official leaderboard
6 Grok 4.6 1.00% xhigh, Codex Aug 2026 Official leaderboard
7 Gemini 3.8 (variant unspecified) 0% high, Codex Official leaderboard
8 Sol (variant unspecified) 0% xhigh, ChatGPT for Excel Official leaderboard
9 Kimi K3 0% max, Codex Jul 2026 Official leaderboard

Number one over time

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

OpenAI
Own leaderboard 1 leader
GPT-6 Astra 15.8%

Source: Official MBABench 2.0 leaderboard

Scores over time

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% Near the ceiling (85%) GPT-6 Astra Claude Fable 5.1 Claude Opus 5 0% 20% 40% 60% 80% 100% Near the ceiling (85%) GPT-6 Astra Claude Fable 5.1

Source: Official MBABench 2.0 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.

Versions

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