reasoning
Humanity's Last Exam
- #277default of 58712.0%
- #530none of 5874.0%
Leader: Opus 5.5 · 61.4%
Other · released 2026-05-20
Measured on 44 benchmarks across 2 reasoning efforts.
General frontier
22.0
#103 of 136 models
includes estimates: 24% of the mix is measured for this model
reasoning
Leader: Opus 5.5 · 61.4%
knowledge
Leader: Opus 5.5 · 46.4
agentic
Leader: Sonnet 5.5 · 1823
agentic
Leader: Gemini 4 · 77.5%
agentic
Leader: GLM 5.2 · 99.1%
agentic
Leader: Qwen 3.8 Max · 51.3%
coding
Leader: Gemini 3 Pro · 91.7%
coding
Leader: Fable 5.1 · 90.5%
coding
Leader: Opus 5.5 · 66.9%
coding
Leader: Opus 5 · 97.0%
coding
Leader: GPT-5.5 · 73.2%
coding
Leader: Opus 5.5 · 87.6%
coding
Leader: GPT-5.6 Sol · 65.9%
coding
Leader: Fable 5.1 · 91.4%
coding
Leader: Sonnet 5.5 · 63.6%
composite
Leader: Opus 5.5 · 57.6
economics
Leader: Opus 5 · 73.2%
economics
Leader: Gemini 4 · 65.4%
economics
Leader: Muse Wonder Full (Max) · 32.6%
economics
Leader: Opus 5.5 · 1866
economics
Leader: Muse Spark 1.2 · 80.4%
instruction
Leader: Grok 4.3 · 83.3%
knowledge
Leader: Fable 5.1 · 67.2%
knowledge
Leader: MiniCPM5-1B (Non-reasoning) · 99.1%
knowledge
Leader: Grok 4.3 · 79.3%
knowledge
Leader: GPT-6 Astra · 96.3%
knowledge
Leader: Gemini 3.1 Pro · 95.5%
knowledge
Leader: Opus 5 · 63.6%
knowledge
Leader: o1 · 96.5%
knowledge
Leader: Opus 5.5 · 91.4%
knowledge
Leader: Fable 5.1 · 92.4%
knowledge
Leader: Gemini 3 Pro · 89.8%
knowledge
Leader: Opus 5.5 · 87.7%
long-context
Leader: Kimi K3 · 88.7%
long-context
Leader: Sonnet 5.5 · 75.0%
math
Leader: Gemini 3.1 Pro · 98.1%
math
Leader: GPT-5.2 · 99.0%
math
Leader: Gemini 3 Pro · 96.4%
math
Leader: GPT-5 · 99.4%
math
Leader: Opus 4.5 · 95.2%
reasoning
Leader: Muse Wonder Full (Max) · 32.9%
reasoning
Leader: Fable 5 · 88.6%
speed
Leader: Gemini 2.5 Flash-Lite · 0.3s
speed
Leader: Celeris-1 · 1522.5