Claude 3.7 Sonnet Turbo vs Claude Haiku 4.5 Max: which model should you choose?
We compared Claude 3.7 Sonnet Turbo and Claude Haiku 4.5 Max on price, context window and 12 benchmarks. Claude Haiku 4.5 Max has the stronger average benchmark score; Claude 3.7 Sonnet Turbo is cheaper on a blended 3:1 basis.
Claude 3.7 Sonnet Turbo
Claude 3.7 Sonnet Turbo is a multimodal model from Anthropic. It offers a 200,000-token context window, costs $15.56 per million input tokens and $63.75 per million output tokens, and averages 82.3 across the index's benchmark suite.
- Input
- $15.56 / 1M
- Output
- $63.75 / 1M
- Context
- 200,000
- Avg score
- 82.3
- Open weights
- No
Claude Haiku 4.5 Max
Claude Haiku 4.5 Max is a multimodal model from Anthropic. It offers a 200,000-token context window, costs $15.98 per million input tokens and $80.37 per million output tokens, and averages 83.8 across the index's benchmark suite.
- Input
- $15.98 / 1M
- Output
- $80.37 / 1M
- Context
- 200,000
- Avg score
- 83.8
- Open weights
- No
Specification comparison
| Spec | Claude 3.7 Sonnet Turbo | Claude Haiku 4.5 Max | Edge |
|---|---|---|---|
| Input price / 1M | $15.56 | $15.98 | A |
| Output price / 1M | $63.75 | $80.37 | A |
| Context window | 200,000 | 200,000 | Tie |
| Max output | 16,384 | 4,096 | A |
| Average score | 82.3 | 83.8 | B |
| Arena Elo | 1458.8 | 1452.0 | A |
| Open weights | No | No | Tie |
Benchmark comparison
Claude 3.7 Sonnet Turbo wins 2, Claude Haiku 4.5 Max wins 10, and 0 benchmarks are tied. The table shows the modelled score for each model and the gap.
| Benchmark | Claude 3.7 Sonnet Turbo | Claude Haiku 4.5 Max | Gap | Winner |
|---|---|---|---|---|
| MMLU-Pro | 82.1 | 86.6 | 4.5 | Claude Haiku 4.5 Max |
| GPQA Diamond | 79.7 | 80.3 | 0.6 | Claude Haiku 4.5 Max |
| SWE-bench Verified | 73.9 | 74.0 | 0.1 | Claude Haiku 4.5 Max |
| HumanEval | 87.6 | 88.5 | 0.9 | Claude Haiku 4.5 Max |
| MATH-500 | 86.8 | 88.7 | 1.9 | Claude Haiku 4.5 Max |
| AIME 2025 | 81.4 | 78.2 | 3.2 | Claude 3.7 Sonnet Turbo |
| LiveCodeBench | 75.5 | 79.2 | 3.7 | Claude Haiku 4.5 Max |
| IFEval | 87.4 | 89.9 | 2.5 | Claude Haiku 4.5 Max |
| TruthfulQA | 82.6 | 83.7 | 1.1 | Claude Haiku 4.5 Max |
| HellaSwag | 91.0 | 91.1 | 0.1 | Claude Haiku 4.5 Max |
| MMMU | 77.6 | 81.4 | 3.8 | Claude Haiku 4.5 Max |
| Arena Elo | 1458.8 | 1452.0 | 6.8 | Claude 3.7 Sonnet Turbo |
Price analysis
On a blended 3:1 input-to-output basis, Claude 3.7 Sonnet Turbo costs about $27.61 per million tokens and Claude Haiku 4.5 Max costs about $32.08. Claude 3.7 Sonnet Turbo is roughly 14% cheaper than Claude Haiku 4.5 Max. At high volume, that gap compounds quickly, so price should carry real weight unless the quality difference is decisive.
Both models list a 200,000-token context window. That is enough for long documents, large codebases and multi-step agent traces.
Verdict
Across 12 shared benchmarks, Claude 3.7 Sonnet Turbo wins 2, Claude Haiku 4.5 Max wins 10, and 0 are tied. On the index average, Claude Haiku 4.5 Max leads Claude 3.7 Sonnet Turbo by 1.5 points (83.8 versus 82.3).
The price picture favours Claude 3.7 Sonnet Turbo. The context picture is effectively a tie. Those two dimensions often matter more than a few benchmark points once a model is good enough for the task.
If you need a single default, start with Claude Haiku 4.5 Max for quality-sensitive work and Claude 3.7 Sonnet Turbo for high-volume, well-scoped tasks. Run both on a sample of your own traffic before locking in a choice.
Choose Claude 3.7 Sonnet Turbo if
- Unit cost matters and you want the cheaper blended price.
- You need the larger 16,384-token output limit.
Choose Claude Haiku 4.5 Max if
- You want the higher average benchmark score in this index.
FAQ
Is Claude 3.7 Sonnet Turbo better than Claude Haiku 4.5 Max?
On the index average, Claude Haiku 4.5 Max leads Claude 3.7 Sonnet Turbo by 1.5 points (83.8 versus 82.3). The better choice depends on price, context and your task. Claude 3.7 Sonnet Turbo wins 2 benchmarks, Claude Haiku 4.5 Max wins 10.
Which is cheaper, Claude 3.7 Sonnet Turbo or Claude Haiku 4.5 Max?
Claude 3.7 Sonnet Turbo is cheaper on a blended 3:1 basis at about $27.61 per million tokens, versus $32.08 for Claude Haiku 4.5 Max.
Which has the larger context window?
Both models list a 200,000-token context window.
Are these models open weights?
Claude 3.7 Sonnet Turbo is proprietary; Claude Haiku 4.5 Max is proprietary.
Which should I choose for production?
If you need a single default, start with Claude Haiku 4.5 Max for quality-sensitive work and Claude 3.7 Sonnet Turbo for high-volume, well-scoped tasks. Run both on a sample of your own traffic before locking in a choice.