Claude Haiku 4.5
Claude Haiku 4.5 is Anthropic's fastest, most cost-efficient model, matching Sonnet 4's performance on coding, computer use, and agent tasks. It offers similar performance to Sonnet 4 at one-third the cost and more than twice the speed, making it ideal for high-volume, latency-sensitive applications and multi-agent orchestration.
Benchmark results
| Benchmark | Score | Tags | Source |
|---|---|---|---|
| AIME 2025 | 80.7% | self-reported llm-stats | link → |
| Cybersecurity CTFs | 46.9% | self-reported llm-stats | link → |
| GPQA | 73.0% | self-reported llm-stats | link → |
| MMMLU | 83.0% | self-reported llm-stats | link → |
| MMMU (validation) | 73.2% | self-reported llm-stats | link → |
| OSWorld | 50.7% | self-reported llm-stats | link → |
| SWE-Bench Verified | 73.3% | self-reported llm-stats | link → |
| Tau2 Airline | 63.6% | self-reported llm-stats | link → |
| Tau2 Retail | 83.2% | self-reported llm-stats | link → |
| Tau2 Telecom | 83.0% | self-reported llm-stats | link → |
| Terminal-Bench | 41.0% | self-reported llm-stats | link → |