Using Claude

Claude Fable 5 runs safety classifiers on requests and during response generation.

Claude Fable 5 runs safety classifiers on requests and during response generation. When a classifier declines a request, the Messages API returns stop_reason: "refusal". You are not billed for a reque

Claude Fable 5 runs safety classifiers on requests and during response generation.

Claude Fable 5 runs safety classifiers on requests and during response generation. When a classifier declines a request, the Messages API returns stop_reason: "refusal". You are not billed for a request refused before any output is generated. An opt-in fallbacks parameter (in beta on the Claude API and Claude Platform on AWS; not supported on the Message Batches API) re-runs refused requests on another model, billed at the fallback model's rates. See Handling stop reasons.

출처: Claude Platform 릴리스 노트 (원문 보기)

Keep reading

The GET /v1/environments/{id}/work endpoint, which lists pending work for a self

The GET /v1/environments/{id}/work endpoint, which lists pending work for a self-hosted sandbox, is now available on Claude Platform on AWS. See IAM actions for Claude Platform on AWS for the GetEnvir

Claude Code 2.1.174

- Added `wheelScrollAccelerationEnabled` setting to disable mouse-wheel scroll acceleration in fullscreen mode - Fixed the `/model` picker hiding the model family that Default resolves to — Opus now a

Claude Code 2.1.173

- Fixed Fable 5 model names with a `[1m]` suffix not being normalized — Fable 5 includes 1M context by default, so the suffix is now stripped automatically - Fixed a spurious "sandbox dependencies mis

Claude Code 2.1.172

- Sub-agents can now spawn their own sub-agents (up to 5 levels deep) - Amazon Bedrock now reads the AWS region from `~/.aws` config files when `AWS_REGION` isn't set, matching AWS SDK precedence; `/s

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