Anthropic API 2026-10-15

+ 신기능 4개

• Claude Opus 5.5의 Fast mode가 정식 출시되어 베타 헤더가 필수가 아니게 된다 # 모델·요금
  원문

  Fast mode is out of research preview for Claude Opus 5.5, and you no longer need to request access. Requests to Claude Opus 5.5 no longer require the `fast-mode-2026-02-01` beta header, and requests that still send it keep working. Claude Opus 5.5 now has a default fast mode rate limit in the Start, Build, and Scale usage tiers. Fast mode for Claude Opus 5 and Claude Opus 4.8 remains in research preview. Keep sending the beta header with fast mode requests to those models.

• Models API에 `capabilities.thinking.types.between_tools`를 추가한다 # 모델·요금
  원문

  We've added `capabilities.thinking.types.between_tools` to the Models API. `GET /v1/models` and `GET /v1/models/{model_id}` now report whether each model accepts `thinking: {type: "between_tools"}`, which turns off up-front thinking. See Using the Models API.

• Azure 배포를 위해 Claude in Microsoft Foundry에서 Claude Opus 5.5의 Fast mode를 지원한다 # 원격·클라우드
  원문

  Fast mode for Claude Opus 5.5 is now available on Claude in Microsoft Foundry for deployments hosted on Azure.

• Compliance API가 사용자 환경설정 정보를 반환하도록 추가한다
  원문

  The Compliance API now returns the text each organization member saved as **Instructions for Claude** in claude.ai and as **Global instructions** in Cowork, in beta for Claude Enterprise organizations. Call `GET /v1/compliance/organizations/{org_uuid}/user_preferences` with your existing Compliance Access Key and the `read:compliance_user_data` scope. See List user preferences.