Benchmark Almanac

AInsteinBench

Claude 4.5 Opus 44% tops its leaderboard Gemini 3 Pro 42.8% leads the models we track
Not in model cards

Coding agents do development tasks taken from maintainer pull requests in six widely used scientific codebases, such as quantum chemistry and molecular simulation packages.

The Doubao Seed 2.0 Pro model card reports it. Authors include Daoguang Zan of the Multi-SWE-bench team.

Released
December 2025
Kind
Scientific code
Level
Expert
Scored
Checked automatically
Answers
Agent task
Tasks
All public
Strongest model tested
Gemini 3 Pro #55 on the capability index
Last model added
December 2025
Scores refreshed
November 12th, 2026

In the authors’ words

We introduce AInsteinBench, a large-scale benchmark for evaluating whether large language model (LLM) agents can operate as scientific computing development agents within real research software ecosystems. Unlike existing scientific reasoning benchmarks which focus on conceptual knowledge, or software engineering benchmarks that emphasize generic feature implementation and issue resolving, AInsteinBench evaluates models in end-to-end scientific development settings grounded in production-grade scientific repositories. The benchmark consists of tasks derived from maintainer-authored pull requests across six widely used scientific codebases, spanning quantum chemistry, quantum computing, molecular dynamics, numerical relativity, fluid dynamics, and cheminformatics. All benchmark tasks are carefully curated through multi-stage filtering and expert review to ensure scientific challenge, adequate test coverage, and well-calibrated difficulty. By leveraging evaluation in executable environments, scientifically meaningful failure modes, and test-driven verification, AInsteinBench measures a model's ability to move beyond surface-level code generation toward the core competencies required for computational scientific research.

Abstract of AInsteinBench: Benchmarking Coding Agents on Scientific Repositories (arXiv:2512.21373, CC0)
11
Entries on its own leaderboard, 6 models we track

Claude 4.5 Opus tops the leaderboard with 44%

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 best model we track is Gemini 3 Pro, at 42.8%.

The newest model with a score here came out in December 2025, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 Claude 4.5 Opus 44%
  2. 2 Gemini 3 Pro 42.8%
  3. 3 DeepSeek-V3.2 37%
  4. 4 Doubao Seed 1.8 36.7%
  5. 5 GPT-5 high 35.4%
  6. 6 Claude 4.5 Sonnet 33.7%
  7. 7 GPT-5.1 32.9%
  8. 8 Kimi K2 Sep 2025 29.1%
  9. 9 GLM-4.6 25.9%
  10. 10 Gemini 2.5 Pro (snapshot unspecified) 19.3%
  11. 11 GPT-4o (snapshot unspecified) 7.00%

Source: Official AInsteinBench leaderboard

#EntryScoreSettingDateSource
1 Claude 4.5 Opus 44% Official leaderboard
2 Gemini 3 Pro 42.8% Nov 2025 Official leaderboard
3 DeepSeek-V3.2 37% Dec 2025 Official leaderboard
4 Doubao Seed 1.8 36.7% Official leaderboard
5 GPT-5 35.4% high Aug 2025 Official leaderboard
6 Claude 4.5 Sonnet 33.7% Official leaderboard
7 GPT-5.1 32.9% Nov 2025 Official leaderboard
8 Kimi K2 Sep 2025 29.1% Sep 2025 Official leaderboard
9 GLM-4.6 25.9% Sep 2025 Official leaderboard
10 Gemini 2.5 Pro (snapshot unspecified) 19.3% Official leaderboard
11 GPT-4o (snapshot unspecified) 7.00% Official leaderboard

Number one over time

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

Google DeepMind
Own leaderboard Not tested since Dec 2025
Gemini 3 Pro 42.8%

Source: Official AInsteinBench 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% 2026 Near the ceiling (85%) Gemini 3 Pro GPT-5 0% 20% 40% 60% 80% 100% 2026 Near the ceiling (85%) Gemini 3 Pro GPT-5

Source: Official AInsteinBench 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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