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 Images System Prompt Max 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	`""`	—

prompt required string

Input prompt

image string

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.

Default: 0.5 min: 0.001, max: 2

max_tokens integer

Maximum number of output tokens

Default: 8192 min: 1024, max: 64000

system_prompt string

System prompt

Default: ""

Version: 459655107e29 Updated: 2/26/2026 647.2K runs