Claude Opus 4

Chat Completions

claude-opus-4-20250514

Anthropic|Created May 25, 2025|200k context

Chat Completions

Claude Opus 4.1 is Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves high scores on SWE-bench Verified and excels in multi-file code refactoring, debugging precision, and detail-oriented reasoning. The model supports extended thinking up to 64K tokens and is optimized for research, data analysis, and tool-assisted workflows.

Overview Specifications Activity Performance Uptime Examples

Throughput

Time-To-First-Token (TTFT)

Not enough TTFT data