AI summary
Written by AI from the official notes. Check them for exact details.Claude Opus 5 has been released with significant improvements over the previous version.
- Supports a 1M token context window
- Allows 128k max output tokens
- Thinking is enabled by default
- Same pricing as Claude Opus 4.8
- Available on multiple platforms including AWS and Google Cloud
Why it matters: Users looking for enhanced performance and flexibility in AI applications should consider upgrading to Claude Opus 5.
Full release notes
We've launched Claude Opus 5 (claude-opus-5), a step-change improvement over Claude Opus 4.8. Claude Opus 5 supports a 1M token context window (both the default and the maximum), 128k max output tokens, and thinking on by default, at $5 / $25 USD per MTok, the same pricing as Claude Opus 4.8. It's available on the Claude API, Claude in Amazon Bedrock, Claude Platform on AWS, Claude on Google Cloud, and Claude in Microsoft Foundry. See What's new in Claude Opus 5 for new features, behavior changes, and migration guidance, and the models overview for complete specs.