Claude Developer Platform Adds Structured Outputs for JSON Schema Compliance
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6mo ago· 2 min readenNews
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Summary
Anthropic has introduced structured outputs on the Claude Developer Platform, now generally available for Claude Sonnet 4.5, Opus 4.5, and Haiku 4.5 models. This feature ensures API responses always match specified JSON schemas or tool definitions, eliminating parsing errors and failed tool calls for production applications. The structured outputs are available natively on the Claude Developer Platform and also integrated with Amazon Bedrock and Microsoft Foundry.
Key quotes
· 4 pulledThe Claude Developer Platform now supports structured outputs for Claude Sonnet 4.5 and Opus 4.1.
With structured outputs, developers can ensure API responses always match your specified JSON schemas or tool definitions.
Structured outputs on the Claude Developer Platform guarantee API responses match your JSON schemas and tool definitions.
This feature eliminates parsing errors and failed tool calls for production applications.
Structured outputs on the Claude Developer Platform guarantee API responses match your JSON schemas and tool definitions. Now in public beta for Sonnet 4.5 and Opus 4.1, this feature eliminates parsing errors and failed tool calls for production applicati

