reasoning
Humanity's Last Exam
- #189default of 58723.1%
- #244none of 58715.1%
Leader: Opus 5.5 · 61.4%
Alibaba · released 2026-04-22
Measured on 38 benchmarks across 2 reasoning efforts.
General frontier
23.7
#99 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: Opus 5.5 · 66.9%
coding
Leader: Opus 5 · 97.0%
coding
Leader: GPT-5.5 · 73.2%
coding
Leader: GPT-5.6 Sol · 65.9%
coding
Leader: Fable 5.1 · 91.4%
coding
Leader: Sonnet 5.5 · 63.6%
coding
Leader: Sonnet 5.5 · 92.4%
composite
Leader: Opus 5.5 · 57.6
cost
Leader: GPT-6 Luna · $0.00
cost
Leader: GPT-6 Luna · $10.63
economics
Leader: Opus 5 · 73.2%
economics
Leader: Muse Wonder Full (Max) · 32.6%
economics
Leader: Opus 5.5 · 1866
economics
Leader: Opus 5 · 72.1%
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: Opus 5.5 · 87.7%
long-context
Leader: Kimi K3 · 88.7%
math
Leader: GPT-6.1 Sol · 93.7%
reasoning
Leader: Muse Wonder Full (Max) · 32.9%
reasoning
Leader: GPT-6 Astra · 91.2%
reasoning
Leader: Opus 4.7 · 56.1%
reliability
Leader: GPT-5.4 Pro · 0.0%
reliability
Leader: GPT-5 Pro · 100.0%
speed
Leader: Gemini 2.5 Flash-Lite · 0.3s
speed
Leader: Celeris-1 · 1522.5
speed
Leader: Qwen 2.5 7B · 0.2s
speed
Leader: Muse Spark 1.1 · 204.3