reasoning
Humanity's Last Exam
- #16max of 58753.6%
Leader: Opus 5.5 · 61.4%
Meta · released 2026-10-12
Measured on 14 benchmarks.
General frontier
63.5
#15 of 136 models · best at max
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%
coding
Leader: Opus 5.5 · 66.9%
coding
Leader: Sonnet 5.5 · 63.6%
composite
Leader: Opus 5.5 · 57.6
economics
Leader: this model · 32.6%
economics
Leader: Opus 5.5 · 1866
knowledge
Leader: Fable 5.1 · 67.2%
knowledge
Leader: MiniCPM5-1B (Non-reasoning) · 99.1%
knowledge
Leader: this model · 13.1%
long-context
Leader: Kimi K3 · 88.7%
reasoning
Leader: this model · 32.9%