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Anthropic · Language model
Claude Haiku 5.5
anthropic/claude-haiku-5.5- Language
Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...
Specifications
- Context window
- 1,000,000 tokens
- Max output
- 128,000 tokens
- Input
- text, image, file
- Output
- text
- Reasoning effort
- max, xhigh, high, medium, low
- Tokenizer
- Claude
- Moderation
- provider-moderated
Supported parameters
Accepted by the model and forwarded as-is by the gateway.
- max_completion_tokens
- max_tokens
- reasoning
- reasoning_effort
- response_format
- stop
- structured_outputs
- tool_choice
- tools
- verbosity
Use it
POST /api/v1/chat/completions · MCP chat · full reference
curl https://omnirail.org/api/v1/chat/completions \
-H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
-d '{"model":"anthropic/claude-haiku-5.5","messages":[{"role":"user","content":"Hello"}],"max_tokens":300}'