Anthropic
Claude Opus 5.5 (Default Fallback)
ReasoningClosed weights
- Intelligence
- 51.2
- Rank 14 of 744 measured models
- Output speed
- 80.5 t/s
- Rank 229 of 403 measured models
- Price/1M
- $8
- Rank 603 of 659 measured models
- Context window
- 1M
- Rank 84 of 1199 measured models
- Cost per task
- $1.34
- Rank 145 of 193 measured models
Claude Opus 5.5 (Medium, Default Fallback) scores 51.2 on the Artificial Analysis Intelligence Index, ranking 14th of 744 measured models. The closest models on this index are Muse Wonder (Max) (52.4), GPT-6.1 Sol (51.8), and Claude Opus 5 (50.8). At $8 per million tokens (3:1 input/output blended price), it is cheaper than Claude Opus 5 ($10), priced close to Muse Wonder (Max) ($8), more expensive than GPT-6.1 Sol ($4). With an output speed of 80.5 t/s, it is faster than GPT-6.1 Sol (47.9 t/s) and Claude Opus 5 (54.7 t/s), slower than Muse Wonder (Max) (131 t/s).
Models at a similar level
The closest models on the Intelligence Index, one configuration per family.
- Gemini 4 Argon (High)
Google · $4 · —
52.6+1.4$4—Compare - Muse Wonder (Max)
Meta · $8 · 131 t/s
52.4+1.2$8131 t/sCompare - GPT-6.1 Sol
OpenAI · $4 · 47.9 t/s
51.8+0.6$447.9 t/sCompare - Claude Opus 5
Anthropic · $10 · 54.7 t/s
50.8−0.4$1054.7 t/sCompare
