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// July 1, 2026v1.40.0

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Claude Sonnet 5 is now the default assistant model

New assistants and in-app model usage now default to Claude Sonnet 5, available across the playground, Elements, and onboarding model pickers.

Features

  • Default to Claude Sonnet 5 #3758 - Claude Sonnet 5 (anthropic/claude-sonnet-5) is now the default model for in-app usage and newly created assistants, added to the allowlist and every model picker across the playground, Elements, and onboarding. Specialized models used for risk and PromptIntel judging, chat segmentation, embeddings, and follow-on suggestions are unchanged. (Author: @simplesagar)
Speakeasy Team
Speakeasy Team
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