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Claude 4.5 Sonnet (Reasoning)
Anthropic · Released 2025-09-29 · Independent benchmark scores from Artificial Analysis
Intelligence Index
21.2
Output speed
0.0
tokens/sec
Blended price
$6.00
per 1M tokens
Time to first token
0.00s
Model metadata
| Model ID | 90e078f2-051b-4c63-8919-76618971cb3f |
|---|---|
| Slug | claude-4-5-sonnet-thinking |
| Release date | 2025-09-29 |
| Provider | Anthropic |
| Provider slug | anthropic |
| Output speed | 0.0 tok/s |
| Time to first token | 0.00s |
| Time to first answer | 0.00s |
| Blended price ($/1M) | $6.00 |
| Input price ($/1M) | $3.00 |
| Output price ($/1M) | $15.00 |
All evaluation scores (17)
| aime | — |
|---|---|
| aime 25 | 88.0% |
| artificial analysis coding index | 52.10 |
| artificial analysis intelligence index | 21.20 |
| artificial analysis math index | 88.00 |
| gpqa | 83.4% |
| hle | 17.8% |
| ifbench | 57.3% |
| lcr | 72.3% |
| livecodebench | 71.4% |
| math 500 | — |
| mmlu pro | 87.5% |
| scicode | 45.7% |
| tau banking | 24.5% |
| tau2 | 78.1% |
| terminalbench hard | 35.6% |
| terminalbench v2 1 | 55.8% |
Source: artificialanalysis.ai/models/claude-4-5-sonnet-thinking
Benchmark data from Artificial Analysis.