Claude Haiku 4.5
AnthropicMULTIMODAL Proprietary
- Provider
- Anthropic
- Modality
- MULTIMODAL
- Parameters
- —
- Context window
- 200,000 tokens
- Weights
- Proprietary
- Released
- 15 Oct 2025
Claude Haiku 4.5 is the speed-and-cost tier — surprisingly capable coding (73% SWE-bench) at the lowest Claude price point.
Best for
- Fastest, cheapest Claude tier for high-volume, low-latency work
- Classification, extraction, routing, lightweight chat
- Simple-to-moderate coding with strong value
How it compares — and the India angle
- Smaller 200K context (vs 1M on Opus/Sonnet) — not for whole-repo or huge-document jobs.
- For high-throughput Indian startups, Haiku's $1/$5 pricing keeps unit economics viable where Opus wouldn't.
- Step up to Sonnet when a task needs deeper reasoning or the 1M window.
Benchmarks
Representative public scores (approximate, higher is better) for relative comparison. Check the provider for the latest official results.
SWE-bench Verified73
How to access
API ~$1 / 1M input, ~$5 / 1M output. The cheapest Claude tier.
Access Claude Haiku 4.5Frequently asked questions
What is Claude Haiku 4.5?
Claude Haiku 4.5 is a multimodal AI model developed by Anthropic.
Who made Claude Haiku 4.5?
Claude Haiku 4.5 was created by Anthropic.
Is Claude Haiku 4.5 open source?
No, Claude Haiku 4.5 is a proprietary model with closed weights.
What is Claude Haiku 4.5's context window?
Claude Haiku 4.5 supports a context window of 200,000 tokens.