The first hybrid reasoning model from Anthropic, combining standard responses with extended thinking mode. Sonnet 3.7 introduced transparent step-by-step reasoning and excelled at coding and front-end development. With 200K context, 64K output, and thinking capabilities, it bridged the gap between Claude 3.5 and Claude 4. This model has been retired and is no longer available for use.
Try NowComplex coding requiring step-by-step reasoning
Problems benefiting from visible thinking process
Front-end development and ui work
200,000 tokens
64,000 tokens
$3 per 1M tokens
$15 per 1M tokens
$0.30 per 1M tokens
$3.75 per 1M tokens
$15 per 1K calls
$0.19 per 1K calls