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. Matching Claude Sonnet 4’s performance across reasoning, coding, and computer-use tasks, Haiku 4.5 brings frontier-level capability to real-time and high-volume applications.
It introduces extended thinking to the Haiku line; enabling controllable reasoning depth, summarized or interleaved thought output, and tool-assisted workflows with full support for coding, bash, web search, and computer-use tools. Scoring >73% on SWE-bench Verified, Haiku 4.5 ranks among the world’s best coding models while maintaining exceptional responsiveness for sub-agents, parallelized execution, and scaled deployment.
- Provider
- Anthropic
- Context Length
- 200,000 tokens
- Input Types
- image, text
- Output Types
- text
- Category
- Claude
- Added
- 10/15/2025
Benchmark Performance
How Claude Haiku 4.5 compares to its closest rivals across industry benchmarks
Metric: Intelligence Index
| Specification | Claude 3 Haiku Previous | Claude Haiku 4.5 Current | Change |
|---|---|---|---|
| Context Window | 200K | 200K | |
| Reasoning Support | |||
| Input Types | text, image | image, text | |
| Output Types | text | text | |
| Input Price (per 1M) | $0.25 | $1.00 | |
| Output Price (per 1M) | $1.25 | $5.00 |
Frequently Asked Questions
Common questions about Claude Haiku 4.5