bedrock-mantle

2026-10-19

MODELS · 1 SOURCE · AWS Machine Learning

Amazon Bedrock adds structured outputs for Anthropic Claude models

Amazon Bedrock now supports structured outputs (schema-compliant JSON) for all Anthropic Claude models on both the bedrock-runtime and bedrock-mantle endpoints, using constrained decoding so generated tokens conform to a provided JSON Schema. The feature includes grammar compilation and 24-hour caching of compiled grammars, works with batch and streaming inference and cross-Region runtime, and aims to eliminate parsing errors and post-processing for production integrations.

7.0

2026-10-07

MODELS · 1 SOURCE · AWS Machine Learning

Claude Opus 5.5 and Sonnet 5.5 available on Amazon Bedrock in AWS GovCloud (US) with Claude Code

Anthropic’s Claude Opus 5.5 and Claude Sonnet 5.5 (alongside Claude Sonnet 5) are available via Amazon Bedrock in AWS GovCloud (US); Sonnet 5 holds FedRAMP Class D and DoD IL4/IL5 authorizations and Opus/Sonnet 5.5 hold FedRAMP Class D certification on Bedrock (users should verify current model certification status). The post outlines using Anthropic’s agentic coding tool Claude Code with Bedrock’s bedrock-runtime and bedrock-mantle endpoints, describing security features (Zero Operator Access), compliance pathways, and integrations for CI/CD and developer tooling.

8.0

2026-09-23

MODELS · 4 SOURCES · TechCrunch AI · The Verge AI · The Decoder · AWS Machine Learning

Anthropic releases Opus 5.5 with improved performance and lower pricing

Anthropic announced Opus 5.5, a faster and cheaper follow-up to Opus 5 that the company says outperforms the larger Fable model on many coding and knowledge-work benchmarks. Output token pricing has been reduced (now $20 per mTok vs $25 for Opus 5), the model communicates with less jargon and front-loads key information, and Sonnet 5.5 and Haiku 5.5 are slated to follow soon; the release is subject to the same safety safeguards as Fable and underwent external evaluation.

8.0

2026-09-21

MODELS · 1 SOURCE · AWS Machine Learning

xAI’s Grok 4.6 is now available in Amazon Bedrock

xAI says Grok 4.6, a model with a 500K-token context window and four configurable reasoning levels, launched on Amazon Bedrock on August 18, 2026; it is served on both bedrock-mantle and bedrock-runtime and supports the Converse API as well as Chat Completions and Responses. xAI reports Grok 4.6 was trained with supplemental model-generated data and agentic reinforcement-learning tasks, and that it shows improved self-checking, first-pass visual/interactive outputs, and expanded safety testing; xAI published benchmark results including ones from Artificial Analysis.

8.0