On the Claude API, we’ve added two new capabilities to build agents that handle long-running tasks without frequently hitting context limits:
- Context editing to automatically clear stale context
- The memory tool to store and consult information outside the context window
Claude Sonnet 4.5 is available everywhere today—on the Claude Developer Platform, natively and in Amazon Bedrock and Google Cloud's Vertex AI.
Pricing remains the same as Sonnet 4.
For more details: https://www.anthropic.com/news/claude-sonnet-4-5
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