Claude Sonnet 5.5

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

2026-10-06

MODELS · 1 SOURCE · Anthropic

Anthropic expands Cyber Verification Program to give vetted security teams access to Claude Opus 5.5, Sonnet 5.5 and Mythos 5.1

Anthropic launched an expanded Cyber Verification Program (CVP) with three access tiers — Defense Access, Red Team Access, and Specialized Access — to grant qualifying security professionals reduced blocking and access to its most capable models (Claude Opus 5.5, Claude Sonnet 5.5, Claude Mythos 5.1 and future models). The program includes tiered verification and controls, required data retention for monitoring (with an option for zero-retention via Enterprise Frontier Safeguards later this fall), and maintains safeguards against actions that could cause physical harm or mass disruption.

7.0

2026-09-28

MODELS · 1 SOURCE · AWS Machine Learning

Anthropic's Claude Sonnet 5.5 is now available on Amazon Bedrock and Claude Platform on AWS

Anthropic’s Claude Sonnet 5.5, a faster and more cost‑efficient Sonnet model for focused coding and knowledge‑work tasks, is available on Amazon Bedrock (via the Global CRIS inference profile) and on Claude Platform on AWS in North America. The integration keeps data within AWS infrastructure and works with AWS controls such as IAM, CloudTrail, CloudWatch, and Bedrock Guardrails, and can be called programmatically via the Anthropic Messages API through bedrock-runtime.

7.0

2026-09-28

MODELS · 2 SOURCES · The Decoder · TechCrunch AI

Anthropic releases Claude Sonnet 5.5 claiming faster output and up to 30% lower per-task costs

Anthropic has released Claude Sonnet 5.5, the second model in its Claude 5.5 family; the company says the model generates output more than 30% faster and reduces per-task costs by up to 30% through more efficient token usage while nearly matching Opus 5.5 on several coding and knowledge-work benchmarks. Sonnet 5.5 is available on AWS, Google Cloud, and Azure as model ID "claude-sonnet-5-5," and Anthropic says it adds new safeguards against cybersecurity risks and distillation attacks — independent verification of the performance and cost claims is pending.

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