Claude Sonnet 5.5 vs Claude Haiku 5.5
Compare Claude Sonnet 5.5 vs Claude Haiku 5.5 API pricing, token costs, context windows, and latency. See which model is cheaper and better for your stack.
Claude Sonnet 5.5 charges $2.00/1M input and $10.00/1M output tokens, compared to Claude Haiku 5.5 at $0.10/1M input and $0.50/1M output. Claude Haiku 5.5 is 20.0x cheaper on input tokens. In reasoning benchmarks, Claude Sonnet 5.5 holds the higher AA Intelligence Index rating (55/100). For latency-critical streaming, Claude Sonnet 5.5 delivers 156 t/s (247.0s TTFT) while Claude Haiku 5.5 provides 256 t/s (186.0s TTFT).
Full Metric & Specification Comparison
| Metric | Claude Sonnet 5.5 | Claude Haiku 5.5 | Advantage |
|---|---|---|---|
| Provider | Anthropic | Anthropic | - |
| Input Token Cost (1M) | $2.000 | $0.100 | Claude Haiku 5.5 |
| Output Token Cost (1M) | $10.000 | $0.500 | Claude Haiku 5.5 |
| Context Window | 1,000k tokens | 1,000k tokens | Tie |
| AA Intelligence Index | 55/100 | 36/100 | Claude Sonnet 5.5 |
| Streaming Latency | Fast | Ultra-Fast | - |
Key Architectural Takeaways
- Input Token Cost: Claude Sonnet 5.5 is $2.00/1M vs Claude Haiku 5.5 at $0.10/1M
- Output Token Cost: Claude Sonnet 5.5 is $10.00/1M vs Claude Haiku 5.5 at $0.50/1M
- Context Window: Claude Sonnet 5.5 supports 1,000k tokens vs Claude Haiku 5.5 with 1,000k tokens
- Benchmark Intelligence Rating: Claude Sonnet 5.5 scores 55/100 vs Claude Haiku 5.5 at 36/100 (AA Index v5)
- Inference Latency: Claude Sonnet 5.5 is rated Fast vs Claude Haiku 5.5 rated Ultra-Fast
Calculate Your Team's Exact Bill Difference
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Deploying Claude Haiku 5.5 over Claude Sonnet 5.5 saves $99.75/mo ($1197/yr) at this volume.
Frequently Asked Questions
Is Claude Sonnet 5.5 cheaper than Claude Haiku 5.5?
Claude Haiku 5.5 is significantly more economical, charging $0.10/1M input compared to $2.00/1M for Claude Sonnet 5.5.
Which model should I choose for production?
If your primary constraint is API cost and high query throughput, choose Claude Haiku 5.5. If you require peak reasoning accuracy and complex tool use, Claude Sonnet 5.5 is recommended.
How does context window compare between Claude Sonnet 5.5 and Claude Haiku 5.5?
Claude Sonnet 5.5 offers the larger context window (1,000k tokens), allowing you to pass significantly larger codebases or documents without chunking.
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