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Heroku AI now supports Claude Sonnet 4.6

Change effective on 18 February 2026

Heroku’s Managed Inference and Agents add-on now supports Anthropic’s Claude Sonnet 4.6. Claude Sonnet 4.6 supports conversational chat, tool calling, and enhanced reasoning for complex tasks with extended thinking. This model is optimized for enterprise apps and ideal for complex tasks like data processing, sales forecasting, and nuanced content generation.

To learn more about using this model on Heroku, see our documentation for Claude Sonnet 4.6.

Heroku AI now supports Cohere Embed V4 PHP updates - February 2026