ProductsProduct / feature launchAgents & Tool Use · Efficiency & Inference1 source · Oct 19, 2026

Structured outputs for Anthropic Claude models on Amazon Bedrock

Amazon Bedrock now supports structured outputs for all Anthropic Claude models, on both the bedrock-runtime and bedrock-mantle endpoints, where the model is available.

Proof1 independent outlet

Key points

  • Whether you call Claude through Boto3 and the bedrock-runtime APIs or through the Messages API and the bedrock-mantle endpoint, you can now receive schema-compliant JSON responses that conform to a defined structure.
  • With structured outputs for Claude on Amazon Bedrock, you can automate reliable, schema-compliant tasks across industries.
  • What changes with structured outputs on Amazon Bedrock
  • Two complementary mechanisms are now available on both Amazon Bedrock endpoints:

Sources (1)

  • [1]Structured outputs for Anthropic Claude models on Amazon Bedrock
    AWS Machine Learning Blog · Oct 19, 11:32 PM
    Amazon Bedrock now supports structured outputs for all Anthropic Claude models, on both the bedrock-runtime and bedrock-mantle endpoints, where the model is available.
    Whether you call Claude through Boto3 and the bedrock-runtime APIs or through the Messages API and the bedrock-mantle endpoint, you can now receive schema-compliant JSON responses that conform to a defined structure.

Extractive summary: sentences quoted from the sources.

Hype check

Independently coveredCovered by 1 outlets

  1. Follow-up · Oct 20, 2026Do not upgrade Strata! Tons of breaking changes!

Before this

  1. Oct 19, 2026Pegasus 1.5 from TwelveLabs is now available in Amazon Bedrock
  2. Oct 19, 2026Push-based KV transfer to improve TTFT and TPOT for disaggregated inference in vLLM
  3. Oct 19, 2026MiniMax M3.1 Flash shows China's AI price race has no floor in sight
  4. Oct 17, 2026Nemotron 3.5 Bolt, Muse Spark Open, and a Fast LFM2.5 24B
  5. Oct 16, 2026How employment is changing at Anthropic
  6. Oct 16, 2026Welcome Beam: a 501B open model you can own, customize, and scale

Related