Claude Sonnet 4.5
Claude Sonnet 4.5 is an AI model published by Anthropic, released on 2025-09-30, for Chat model, and 1000K context length, under the 不开源 license, with a 1389.00 score on CodeClash.
Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology
Model basics
Open source & experience
Official resources
API details
Benchmark Results
Claude Sonnet 4.5 currently shows benchmark results led by AIME2025 (1 / 106, score 100), SWE-bench Verified (6 / 108, score 82), MMLU Pro (7 / 126, 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.
General Knowledge
12 evaluationsCoding and Software Engineer
6 evaluationsMath and Reasoning
8 evaluationsAI Agent - Tool Usage
5 evaluationsAgent Level Benchmark
4 evaluationsClaw-style Agent Evaluation
2 evaluationsCompare with other models
- Earlier versionClaude Sonnet 4.5 vs Claude Sonnet 426 benchmarks
- Peer modelClaude Sonnet 4.5 vs Gemini 2.5-Pro24 benchmarks
- Peer modelClaude Sonnet 4.5 vs GPT-5.117 benchmarks
- Earlier versionClaude Sonnet 4.5 vs Claude Sonnet 3.712 benchmarks
- Earlier versionClaude Sonnet 4.5 vs Claude 3.5 Sonnet New7 benchmarks
- Earlier versionClaude Sonnet 4.5 vs Claude 3.5 Sonnet5 benchmarks
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Publisher
Model Overview
Claude Sonnet 4.5 is an AI model published by Anthropic, released on 2025-09-30, for Chat model, and 1000K context length, under the 不开源 license, with a 1389.00 score on CodeClash.
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