Claude Haiku 4.5
Claude Haiku 4.5 is Anthropic's fastest current Claude model with near-frontier intelligence for high-volume and latency-sensitive workloads.
Provider
Anthropic
Model family
Anthropic Claude
Multimodal LLM
Cost tier
Haiku
Status
Current
Why teams choose it
Complex reasoning
Useful for workflows that require structured thinking, multi-step logic, and deeper analysis than lightweight models provide.
Long-context analysis
Helps teams summarize, compare, and extract insights from long documents without losing important nuance.
Coding and tools
Works well for code assistance, tool calling, and agent workflows where instructions must stay consistent across steps.
Cost-efficient routing
Useful as part of a routing stack where cheap models handle drafts and confirmations and this tier handles genuinely hard passages.
Tradeoffs to know
- Use Sonnet 5, Opus 5, or Fable 5 for harder long-horizon tasks.
Technical specs
- Inputs
- text, image
- Outputs
- text
- Capabilities
- low latency, vision, extended thinking, tool use
- License
- Proprietary API
Benchmarks
No independent or vendor benchmark scores in this catalog entry.
Anthropic Claude family lineup
Current models
Previous versions
Related models
Claude Haiku 4.5 FAQ
What is Claude Haiku 4.5?
Claude Haiku 4.5 is Anthropic's fastest current Claude model with near-frontier intelligence for high-volume and latency-sensitive workloads.
When does Claude Haiku 4.5 fit best?
High-volume assistants
What should teams watch out for with Claude Haiku 4.5?
Use Sonnet 5, Opus 5, or Fable 5 for harder long-horizon tasks.
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