Claude Sonnet 4 5 20250929
60—
VolatileModel IQ Index
Track coding-model benchmark scores and trends; score scales follow each source
All models
All upstream model scores and 30-day trends
Claude Opus 4.5
65—
GoodClaude Opus 4 6
65—
GoodClaude Sonnet 4.6
68▲
GoodClaude Opus 4.7
60▼
VolatileClaude Opus 4.8
69—
GoodClaude Fable 5
74▲
GoodClaude Sonnet 5
73▲
GoodClaude Opus 5
71—
GoodDeepSeek V4 Flash
63▲
VolatileDeepSeek V4 Pro
64—
VolatileGLM 5.2
57—
VolatileGemini 3.1 Pro
75—
GoodGemini 3.1 Flash Lite
42▼
VolatileKimi 2.7
71—
GoodKimi K3
73—
GoodGPT-5.3
71—
GoodGPT 5.4
71▲
GoodGPT 5.5
71▲
GoodGPT-5.6 Sol
71—
GoodGPT-5.6 Terra
67▼
GoodGPT-5.6 Luna
68▲
GoodCodex GPT-5.6 focus
Current IQ for each Codex configuration
Codex IQ data is temporarily unavailable
Claude Code focus
Current IQ for each Claude Code model configuration
Opus 4.8 xhigh
60
Opus 4.8 high
75
Opus 4.8 medium
60
Sonnet 5 max
120
Sonnet 5 xhigh
105
Sonnet 5 high
45
Fable 5 max
75
Fable 5 xhigh
120
Fable 5 high
90
Haiku 4.5
15