reasoning
Humanity's Last Exam
- #519none of 5874.1%
Leader: Opus 5.5 · 61.4%
Other · released 2026-04-29
Measured on 13 benchmarks.
General frontier
9.4
#133 of 136 models · best at none
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: GLM 5.2 · 99.1%
coding
Leader: GPT-5.6 Sol · 65.9%
coding
Leader: Fable 5.1 · 91.4%
composite
Leader: Opus 5.5 · 57.6
economics
Leader: Opus 5.5 · 1866
instruction
Leader: Grok 4.3 · 83.3%
knowledge
Leader: Fable 5.1 · 67.2%
knowledge
Leader: MiniCPM5-1B (Non-reasoning) · 99.1%
knowledge
Leader: GPT-6 Astra · 96.3%
long-context
Leader: Kimi K3 · 88.7%
reasoning
Leader: Muse Wonder Full (Max) · 32.9%