Claude Haiku 4.5
Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models.
Specifications
| Lab | Anthropic |
|---|---|
| Context window | 200K tokens |
| Input price | $1.00/1M |
| Output price | $5.00/1M |
| Release | Oct 2025 |
Strengths
- Fastest Claude model with strong reasoning
- Excellent coding speed and quality
- 200K context window
- Cost-effective for high-volume tasks
Weaknesses
- Below Opus/Sonnet on deep reasoning
- Less nuanced on creative tasks
Best for
- High-volume coding tasks
- Quick reasoning and analysis
- Chatbots and customer-facing apps
In Depth: Claude Haiku 4.5
Summary
Claude Haiku 4.5 is an AI model from Anthropic.
Released in Oct 2025. It currently appears in the Overall category on LMRank and 1 other category. It takes text, image, and file input and produces text output, with a context window of 200K tokens. Input pricing is $1.00 per 1M tokens and output is $5.00 per 1M tokens on OpenRouter.