Claude Opus 4.1legacy
Anthropic · released Aug 4, 2025
Mid-2025 Opus iteration with improved instruction following.
21.7
Podium Score
#466 of 673
1449
Arena Elo
61 on Arena
80 t/s
Output Speed
$15/M
Output Price
$3/M in
200K
Context Window
Scores by Source
Category Scores
📜 Long Context85.2
💻 Coding6.4
Benchmark Results
SWE-Bench Verified74.5%
Model Details
| Release date | Aug 4, 2025 |
|---|---|
| Parameters | Not disclosed |
| License | Proprietary |
| Context Window | 200,000 tokens |
| Input Price | $3/M |
| Output Price | $15/M |
| Output Speed | 80 t/s |
| Time to First Token | — |