Claude Haiku 4.5 vs Claude Sonnet 4.6
List-price comparison · Claude Haiku 4.5 details · Claude Sonnet 4.6 details
For a typical workload (100,000 requests / mo), Claude Haiku 4.5 costs 67% less — $320.00/mo vs $960.00/mo.
| Claude Haiku 4.5 | Claude Sonnet 4.6 | |
|---|---|---|
| Input / 1M tokens | $1.00 | $3.00 |
| Output / 1M tokens | $5.00 | $15.00 |
| Typical request (1,200 in + 400 out) | $0.0032 | $0.0096 |
| Context window | 200k tokens | 1M tokens |
| Max output | 64k tokens | 128k tokens |
| Tier | Flash | Balanced |
| Provider | Anthropic | Anthropic |
Projected monthly cost
Rows open both models in the calculator — adjust volume and token counts there.
Claude Haiku 4.5
Very low latency for high-volume, simple tasks — classification, short summaries, and lightweight chat where response time matters more than depth.
Noticeably weaker on multi-step reasoning and long-context synthesis; pairing with a larger model for escalation is common.
Claude Sonnet 4.6
Strong price-to-performance for production agents: reliable tool use, structured JSON output, and solid coding ability at roughly a fifth of Opus's cost.
Can still misstep on the hardest multi-step reasoning chains where Opus would succeed — budget for occasional escalation to a flagship model.
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.