Claude 4 Opus
Claude 4 Opus — Anthropic multimodal model with an Intelligence Index of 29, a 262K-token context window and a blended price of $1.68/1M tokens.
Key specifications
| Intelligence Index | 29 |
|---|---|
| Coding Index | — |
| Agentic Index | — |
| Arena Elo | — |
| Context window (K tokens) | 262 |
| Blended price ($/1M tokens) | 1.7 |
| Output speed (tokens/s) | — |
About Claude 4 Opus
The Claude 4 Opus is a multimodal model from Anthropic with an Intelligence Index of 29.0 and a 262K-token context window. It runs at a blended price of $1.68 per million tokens. It is proprietary api. Leaderboard indices are a strong signal but only part of real-world quality, which also depends on tool use, latency and task fit.
The comparisons below show how Claude 4 Opus stacks up against the alternatives people most often weigh against it, with the specific numbers laid out side by side.
Frequently asked questions
Is the Claude 4 Opus any good?
Claude 4 Opus — Anthropic multimodal model with an Intelligence Index of 29, a 262K-token context window and a blended price of $1.68/1M tokens.
What are the key specs of the Claude 4 Opus?
See the specification table above for the full breakdown.