Claude Haiku 4.5
anthropic/claude-4.5-haiku-20251001
Claude Haiku 4.5 is an Anthropic model that accepts text, image, and file inputs and produces text output. It supports tool use and reasoning, offers a context window of 200 000 tokens, and is priced at $1 per million input tokens and $5 per million output tokens. The model is not open‑weights and was released on 2025‑10‑15.
- tool use
- structured outputs
- reasoning
At a glance
Specifications
What the API gives you
- Context window
- 200K tokens
- Max output
- 64K tokens
- Input price
- $1 / 1M tokens
- Output price
- $5 / 1M tokens
- Cache read
- $0.100 / 1M tokens
- Modalities
- text, image, file → text
- Knowledge cutoff
- —
- Released
- Oct 15, 2025
Recommendation coverage
Where this model appears
Not currently included in a published recommendation. This means the available task-specific evidence did not support a ranking yet—not that the model was reviewed and rejected.
Measured evidence
Public benchmark record
- LMArena WebDev
- 1327 Elo2026-07-16
- LMArena WebDev
- 1327 Elo2026-07-20
LMArena data licensed CC-BY-4.0. Aider (Apache-2.0) and SWE-bench (MIT) are open.
Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.