Claude Haiku 4.5 is Anthropic fastest and most affordable model, delivering 90% of Sonnet capability at a fraction of the cost. At $0.80/$4 per MTok, Haiku is ideal for high-volume applications, pair programming assistants, and worker agents in multi-agent systems. It supports a 200K context window and maintains Anthropic safety-first design principles.
| Benchmark | Score |
|---|---|
| LMSYS Arena | 1320 |
| Context Window | 200K |
| Price (input/output) | $0.80/$4 |