Claude Sonnet 4.5 (batch)
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...
The figures
- Made by
- Anthropic
- Model ID
- anthropic/claude-sonnet-4.5:batch
- Input
- $1.5 per million tokens
- Output
- $7.5 per million tokens
- Context window
- 1M tokens
- Longest answer
- 64K tokens
- Takes in
- text, image, file
- Gives back
- text
- Reasoning
- Yes
- Tool calling
- Yes
- Reads images
- Yes
- Open weights
- No
- Released
- 29 Sept 2025
Read on 3 Oct 2026.