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Claude Sonnet 4.5
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...
Capabilities:
Input
- Text input
- Image input (vision)
- File input (PDF)
- Audio input
- Video input
Output
- Text output
- Image output
- Audio output
Pricing & availability:
OpenRouter
$3 / $15 per M
Sources:
Details:
Provider
AnthropicContext window
1MInput price
$3/MOutput price
$15/MOpen weights
NoKnowledge cutoff
Jan 2025Released
Sep 2025
