anthropic/claude-4.5-sonnet

Claude Sonnet 4.5 is the best coding model to date, with significant improvements across the entire development lifecycle

Capabilities

Reference ImagesSystem PromptMax Tokens

Community model (estimated from hardware time)

Name	Type	Description	Default	Constraints
`prompt`*	string	Input prompt	`—`	—
`image`	string(uri)	Optional input image. Images are priced as (width px * height px)/750 input tokens	`—`	—
`max_image_resolution`	number	Maximum image resolution in megapixels. Scales down image before sending it to Claude, to save time and money.	`0.5`	min: 0.001, max: 2
`max_tokens`	integer	Maximum number of output tokens	`8192`	min: 1024, max: 64000
`system_prompt`	string	System prompt	`""`	—

promptrequiredstring

Input prompt

imagestring

Optional input image. Images are priced as (width px * height px)/750 input tokens

max_image_resolutionnumber

Maximum image resolution in megapixels. Scales down image before sending it to Claude, to save time and money.

Default: 0.5min: 0.001, max: 2

max_tokensinteger

Maximum number of output tokens

Default: 8192min: 1024, max: 64000

system_promptstring

System prompt

Default: ""

Version: 459655107e29Updated: 7/25/2026647.2K runs