OpenAI / MODEL EVIDENCE

gpt-oss-120b

41 benchmarks · 63 observations · 46 sources · released 2025-08-05

Scores at a glance

41 benchmarks · large dot: gpt-oss-120b; small dots: closest models where reported

LMCA ↗22.14%
2.7868.26

gpt-oss-120b · LMCA · Score · % ↗

41.6598.93

gpt-oss-120b · DTBench · Accuracy · % ↗

5.7874.39

gpt-oss-120b · Scale Labs · Risk elicitation score ↗

7.169.2

GPT-OSS 120B (high) · GAIA-2 · Gaia2 full · Execution pass@1 · baseline ReAct · three runs ↗

7 more reported results

33.1% · GPT-OSS 120B (high) · GAIA-2 · Gaia2 full · Search pass@1 · baseline ReAct · three runs · Gaia2: Benchmarking LLM Agents on Dynamic and Asynchronous Environments ↗

8.3% · GPT-OSS 120B (high) · GAIA-2 · Gaia2 full · Ambiguity pass@1 · baseline ReAct · three runs · Gaia2: Benchmarking LLM Agents on Dynamic and Asynchronous Environments ↗

10.6% · GPT-OSS 120B (high) · GAIA-2 · Gaia2 full · Adaptability pass@1 · baseline ReAct · three runs · Gaia2: Benchmarking LLM Agents on Dynamic and Asynchronous Environments ↗

0.6% · GPT-OSS 120B (high) · GAIA-2 · Gaia2 full · Time pass@1 · baseline ReAct · three runs · Gaia2: Benchmarking LLM Agents on Dynamic and Asynchronous Environments ↗

14.6% · GPT-OSS 120B (high) · GAIA-2 · Gaia2 full · Noise pass@1 · baseline ReAct · three runs · Gaia2: Benchmarking LLM Agents on Dynamic and Asynchronous Environments ↗

10.6% · GPT-OSS 120B (high) · GAIA-2 · Gaia2 full · Agent2Agent pass@1 · baseline ReAct · three runs · Gaia2: Benchmarking LLM Agents on Dynamic and Asynchronous Environments ↗

13.7% · GPT-OSS 120B (high) · GAIA-2 · Gaia2 full · Overall pass@1 · baseline ReAct · three runs · Gaia2: Benchmarking LLM Agents on Dynamic and Asynchronous Environments ↗

1.312.05

gpt-oss-120b (high) · Harmonic-mean speedup ↗

ALE-Bench ↗575.62 Performance points
137.782951.32

gpt-oss-120b · Average contest performance ↗

Closest models by score

Similar positions on shared benchmark leaderboards. Smaller gaps are closer.

o3 →OpenAI
20.2 percentile-point gap

14 of 21 shared benchmark comparisons

22.7 percentile-point gap

13 of 21 shared benchmark comparisons

How similarity is measured

Mean absolute gap in percentile positions on shared benchmark settings; lower is closer. At least 60% overlap is required, with a minimum of three when available. Independent evaluations are used when there are at least three; otherwise published report comparisons are used. Repeated model observations within one setting are averaged before ranking. Writing-style traits and composite indices are excluded. This describes similarity, not an overall quality ranking.

Sources

Every plotted observation links to its evaluation. Reported configurations, benchmark versions and task subsets can differ; similarity describes shared scores, not training lift.

  1. Aider code editing benchmark ↗

    Paul Gauthier, Aider contributors

  2. AIME 2025 Benchmark | Artificial Analysis ↗

    Artificial Analysis

  3. LiveCodeBench Benchmark | Artificial Analysis ↗

    Artificial Analysis

  4. SciCode Benchmark | Artificial Analysis ↗

    Artificial Analysis

  5. TextQuests: How Good are LLMs at Text-Based Video Games? — published result table ↗

    Phan, Long, Mazeika, Mantas, Zou, Andy, Hendrycks, Dan · 2025

  6. Gaia2: Benchmarking LLM Agents on Dynamic and Asynchronous Environments — published result table ↗

    Froger, Romain, Andrews, Pierre, Bettini, Matteo, Budhiraja, Amar, Cabral, Ricardo Silveira, Do, Virginie et al. · 2026

    All 24 authors

    Froger, Romain, Andrews, Pierre, Bettini, Matteo, Budhiraja, Amar, Cabral, Ricardo Silveira, Do, Virginie, Garreau, Emilien, Gaya, Jean-Baptiste, Laurençon, Hugo, Lecanu, Maxime, Malkan, Kunal, Mekala, Dheeraj, Ménard, Pierre, Bertran, Gerard Moreno-Torres, Piterbarg, Ulyana, Plekhanov, Mikhail, Rita, Mathieu, Rusakov, Andrey, Vorotilov, Vladislav, Wang, Mengjue, Yu, Ian, Benhalloum, Amine, Mialon, Grégoire, Scialom, Thomas

  7. DTBench — Conceptual Reasoning Index ↗

    Conceptual Reasoning Index

  8. LMCA — Conceptual Reasoning Index ↗

    Conceptual Reasoning Index

  9. Aider Polyglot ↗

    Epoch AI

  10. Ale Bench — methodology and published results ↗

    Epoch AI · 2026

  11. Algotune — methodology and published results ↗

    Epoch AI · 2026

  12. APEX-Agents ↗

    Epoch AI

  13. CritPt v1 ↗

    Epoch AI

  14. GPQA Diamond ↗

    Epoch AI

  15. Mystery Game Puzzles ↗

    Epoch AI

  16. OTIS Mock AIME 2024-2025 ↗

    Epoch AI

  17. SimpleBench ↗

    Epoch AI

  18. Terminal-Bench 2.0 ↗

    Epoch AI

  19. Vending Bench 2 — methodology and published results ↗

    Epoch AI · 2026

  20. WeirdML (v2) ↗

    Epoch AI

  21. AI benchmarks & capabilities ↗

    Epoch AI

  22. Fiction.liveBench — March 14, 2025 benchmark release ↗

    Fiction.live · 2025

  23. Writing benchmark — incorporating mandatory story elements ↗

    lechmazur

  24. WeirdML ↗

    Håvard Tveit Ihle

  25. DistressBench — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  26. Scale Labs — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  27. Scale Labs — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  28. Scale Labs — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  29. Scale Labs — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  30. Scale Labs — evaluation methodology and results ↗

    Scale Labs / SEAL · 2026

  31. Measuring AI Ability to Complete Long Software Tasks ↗

    METR

  32. Terminal-Bench 2.0 leaderboard ↗

    Terminal-Bench Team

  33. AIME — evaluation methodology and results ↗

    Vals AI · 2026

  34. CaseLaw — evaluation methodology and results ↗

    Vals AI · 2026

  35. CorpFin — evaluation methodology and results ↗

    Vals AI · 2026

  36. GPQA Diamond — evaluation methodology and results ↗

    Vals AI · 2026

  37. LiveCodeBench — evaluation methodology and results ↗

    Vals AI · 2026

  38. LegalBench — evaluation methodology and results ↗

    Vals AI · 2026

  39. MATH 500 — evaluation methodology and results ↗

    Vals AI · 2026

  40. MedQA — evaluation methodology and results ↗

    Vals AI · 2026

  41. MGSM — evaluation methodology and results ↗

    Vals AI · 2026

  42. MMLU Pro — evaluation methodology and results ↗

    Vals AI · 2026

  43. Poker Agent — evaluation methodology and results ↗

    Vals AI · 2026

  44. SWE-bench Verified — evaluation methodology and results ↗

    Vals AI · 2026

  45. TaxEval — evaluation methodology and results ↗

    Vals AI · 2026

  46. Surface Evolver Bench ↗

    yhenon

Names used in source tables

GPT OSS 120B · GPT OSS 120B (Mini-SWE-agent) · GPT-OSS 120B · GPT-OSS 120B (high) · GPT-OSS-120b · gpt-oss-120b · gpt-oss-120b (High) · gpt-oss-120b (high) · gpt-oss-120b (low) · gpt-oss-120b (unknown thinking)