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9595| Feature | Description | ZDR | Availability |
9696| ------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ | ------------------------------------------------------------------------------------------------- |
97| [Compaction](https://platform.claude.com/docs/en/build-with-claude/compaction) | Server-side context summarization for long-running conversations. When context approaches the window limit, the API automatically summarizes earlier parts of the conversation. | ZDR eligible | <PlatformAvailability claudeApiBeta claudePlatformAwsBeta bedrockBeta vertexAiBeta azureAiBeta /> |
97| [Compaction at a token threshold](https://platform.claude.com/docs/en/build-with-claude/compaction-threshold) | Server-side context summarization for long-running conversations. When input tokens reach the trigger threshold, the API automatically summarizes earlier parts of the conversation. | ZDR eligible | <PlatformAvailability claudeApiBeta claudePlatformAwsBeta bedrockBeta vertexAiBeta azureAiBeta /> |
9898| [Context editing](https://platform.claude.com/docs/en/build-with-claude/context-editing) | Automatically manage conversation context with configurable strategies. Supports clearing tool results when approaching token limits and managing thinking blocks in extended thinking conversations. | ZDR eligible | <PlatformAvailability claudeApiBeta claudePlatformAwsBeta bedrockBeta vertexAiBeta azureAiBeta /> |
9999| [Automatic prompt caching](https://platform.claude.com/docs/en/build-with-claude/prompt-caching#automatic-caching) | Simplify prompt caching to a single API parameter. The system automatically caches the last cacheable block in your request, moving the cache point forward as conversations grow. | ZDR eligible | <PlatformAvailability claudeApi claudePlatformAws bedrock vertexAi azureAi /> |
100100| [Prompt caching (5m)](https://platform.claude.com/docs/en/build-with-claude/prompt-caching) | Provide Claude with more background knowledge and example outputs to reduce costs and latency. | ZDR eligible | <PlatformAvailability claudeApi claudePlatformAws bedrock vertexAi azureAi /> |