The first Claude 4 flagship model, delivering breakthrough coding and agentic performance with 72.5% on SWE-bench Verified. Opus 4 excels at autonomous research, multi-step reasoning, and complex problem-solving with 200K context and extended thinking capabilities. Superseded by Opus 4.1 and later generations.
Try NowComplex multi-step problems requiring rigor
Advanced coding challenges
Agentic workflows
200,000 tokens
32,000 tokens
$15
$75
$1.50
$18.75
$10
$0.0694