reasoning
Humanity's Last Exam
- #305default of 58710.6%
Leader: Opus 5.5 · 61.4%
NVIDIA · released 2026-08-11
Measured on 38 benchmarks.
General frontier
19.2
#111 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: Fable 5 · 51.1%
agentic
Leader: Muse Spark 1.2 · 25.4%
agentic
Leader: Muse Spark 1.3 · 55.3%
agentic
Leader: Fable 5.1 · 49.2%
agentic
Leader: Qwen 3.8 Max · 51.3%
coding
Leader: Sonnet 5.5 · 69.8%
coding
Leader: Opus 5.5 · 65.0%
coding
Leader: Opus 5.5 · 18.5%
coding
Leader: Opus 5.5 · 87.0%
coding
Leader: Opus 5.5 · 66.9%
coding
Leader: Opus 5 · 97.0%
coding
Leader: Opus 5.5 · 87.6%
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: Fable 5.1 · 76.7%
economics
Leader: Gemini 4 · 65.4%
economics
Leader: Muse Wonder Full (Max) · 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: GPT-6 Astra · 96.3%
knowledge
Leader: Opus 5.5 · 91.4%
long-context
Leader: Kimi K3 · 88.7%
long-context
Leader: Sonnet 5.5 · 75.0%
math
Leader: Sonnet 5.5 · 100.0%
reasoning
Leader: Muse Wonder Full (Max) · 32.9%
safety
Leader: Wonder · 80.4%
speed
Leader: Gemini 2.5 Flash-Lite · 0.3s
speed
Leader: Celeris-1 · 1522.5