anthropic
Anthropic: Claude Opus 4.1
Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains in multi-file code refactoring, debugging precision, and detail-oriented reasoning. The model supports extended thinking up to 64K tokens and is optimized for tasks involving research, data analysis, and tool-assisted reasoning.
Input Cost
$15.00
per 1M tokens
Output Cost
$75.00
per 1M tokens
Context Window
200,000
tokens
Developer ID: anthropic/claude-opus-4.1
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