anthropic/claude-4.5-haiku

Claude Haiku 4.5 gives you similar levels of coding performance but at one-third the cost and more than twice the speed

Capabilities

System PromptMax Tokens

Community model (estimated from hardware time)

Name	Type	Description	Default	Constraints
`prompt`*	string	Input prompt	`—`	—
`max_tokens`	integer	Maximum number of output tokens	`8192`	min: 1, max: 8192
`system_prompt`	string	System prompt	`""`	—

promptrequiredstring

Input prompt

max_tokensinteger

Maximum number of output tokens

Default: 8192min: 1, max: 8192

system_promptstring

System prompt

Default: ""

Version: 1ad171f62532Updated: 8/1/20261.8M runs