gpt-oss-120b

Composite indexes

• Artificial Analysis Intelligence Index#101 of 151
  12independentAA Intelligence Index v4.3.2, highArtificial Analysis: gpt-oss-120b (high) ↗

  Leader: Claude Opus 5.5 at 58

Coding

• Terminal-Bench 4.0#68 of 96
  0%independentTerminal-Bench 4.0 (AA harness), highArtificial Analysis: gpt-oss-120b (high) ↗

  Leader: Claude Sonnet 5.5 at 70.6%

• Terminal-Bench 2.x#81 of 105
  26.2%independentTerminal-Bench 2.1 (AA harness), highArtificial Analysis: gpt-oss-120b (high) ↗

  Leader: Claude Fable 5.1 at 91.4%

• SciCode#89 of 100
  34%independenthighArtificial Analysis: gpt-oss-120b (high) ↗

  Leader: Claude Opus 5.5 at 66.9%

• LiveCodeBench#5 of 57
  87.8%independentAA, highArtificial Analysis: gpt-oss-120b (high) ↗

  Leader: Fugu at 92.9%

Agents and tool use

• GDPval-AA#78 of 109
  596independentGDPval-AA, highArtificial Analysis: gpt-oss-120b (high) ↗

  Leader: Muse Wonder Full at 1857

• τ²-Bench#40 of 89
  65.8%independenttelecom (AA), highArtificial Analysis: gpt-oss-120b (high) ↗

  Leader: GLM-5.2 at 99.1%

Reasoning and knowledge

• Humanity’s Last Exam#79 of 153
  19.6%independentno tools (AA), highArtificial Analysis: gpt-oss-120b (high) ↗

  Leader: Claude Sonnet 5.5 at 64.5%

• GPQA Diamond#77 of 144
  78.2%independentAA, highArtificial Analysis: gpt-oss-120b (high) ↗

  Leader: GPT-6 Astra at 96.1%

• CritPt#74 of 144
  1.1%independenthighArtificial Analysis: gpt-oss-120b (high) ↗

  Leader: Muse Wonder Full at 33%

Vision and long context

• AA Long Context Reasoning#95 of 144
  52%independenthighArtificial Analysis: gpt-oss-120b (high) ↗

  Leader: Kimi K3 at 88.7%

Human preference

• LMArena Text#53 of 57
  1352independentgpt-oss-120b, style control default, vote cutoff 2026-09-13LMArena Text leaderboard ↗

  Leader: Gemini 4 Argon at 1525

Other published results