Claude Sonnet 4.5
Claude Sonnet 4.5 is an AI model published by Anthropic, released on 2025-09-30, for AI model, and 1000K tokens context length, with no open-source license.
Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology
| Modality | Input | Output |
|---|---|---|
| Text | $3 | $15 |
| Modality | Input cache | Output cache |
|---|---|---|
| Text | $3.75 | $0.3 |
| Modality | Input | Output |
|---|---|---|
| Text | $6 | $22.5 |
Claude Sonnet 4.5 currently shows benchmark results led by AIME2025 (1 / 106, score 100), SWE-bench Verified (3 / 103, score 82), MMLU Pro (5 / 124, score 88). This page also consolidates core specs, context limits, and API pricing so you can evaluate the model from benchmark results and deployment constraints together.
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Claude Sonnet 4.5 is an AI model published by Anthropic, released on 2025-09-30, for AI model, and 1000K tokens context length, with no open-source license.
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