Claude Haiku 5.5 chat from Anthropic, released 7 October 2026, through an OpenAI-compatible endpoint. It takes up to 1,000,000 tokens of text and images, returns up to 128,000, and accepts up to 128 tool definitions with forced or automatic tool calls.
Workbench
These examples were written for this endpoint. Replace the prompt and sample media URLs with your own accessible inputs, then check the current quote and model availability before submitting.
- Input types
- Text
- Output types
- Text
- Input
- $0.10 / 1 million tokens
- Cached input
- $0.10 / 1 million tokens
- Output
- $0.50 / 1 million tokens
- Context
- 1M
- Max output
- 128K
$0.10/0.50per 1 million tokens · input / output
companion-turn A short companion-chat turn: the persona and house rules travel in the system message, the reply length is set in words because max_tokens does not cut the reply here, and the history follows oldest first.
- 1024
- Input types
- Text
- Output types
- Text
- Input
- $0.10 / 1 million tokens
- Cached input
- $0.10 / 1 million tokens
- Output
- $0.50 / 1 million tokens
- Context
- 1M
- Max output
- 128K
$0.10/0.50per 1 million tokens · input / output
ticket-router Routing with a forced tool call: tool_choice names route_ticket, so the answer always arrives as a queue and a priority you can act on, never as free text.
- 512
- Input types
- Text
- Output types
- Text
- Input
- $0.10 / 1 million tokens
- Cached input
- $0.10 / 1 million tokens
- Output
- $0.50 / 1 million tokens
- Context
- 1M
- Max output
- 128K
$0.10/0.50per 1 million tokens · input / output
invoice-fields Extraction into a fixed shape: the tool's parameters are the fields you want, the system message says to leave out anything not present, and tool_choice forces the call.
- 1024
- required
- Input types
- Text
- Output types
- Text
- Input
- $0.10 / 1 million tokens
- Cached input
- $0.10 / 1 million tokens
- Output
- $0.50 / 1 million tokens
- Context
- 1M
- Max output
- 128K
$0.10/0.50per 1 million tokens · input / output
thread-notes Compressing a long conversation into notes for a later turn or a larger model: the whole thread travels as written and the system message fixes the format of the notes.
- 2048
This example starts at Input $0.10 / Output $0.50 per 1 million tokens. The Playground updates the estimate when you change the settings.
