Claude Opus 4 was released May 22, 2025 alongside Sonnet 4. Described as the world's best coding model at launch, capable of autonomous coding for up to 7 hours. Scored 72.5% on SWE-bench Verified. Priced at \$15/\$75 per million tokens with a 200K token context window.
Modality
text, image
Capabilities3
tool-useextended-thinkingagentic-coding