Claude Sonnet 5.5 vs Gemini 3.1 Pro (Preview)
Compare Claude Sonnet 5.5 vs Gemini 3.1 Pro (Preview) 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 Gemini 3.1 Pro (Preview) at $2.00/1M input and $12.00/1M output. Claude Sonnet 5.5 is 1.0x cheaper on input tokens. In reasoning benchmarks, Claude Sonnet 5.5 holds the higher AA Intelligence Index rating. For latency-critical streaming, Claude Sonnet 5.5 delivers 156 t/s (247.0s TTFT) while Gemini 3.1 Pro (Preview) provides 124 t/s (15.0s TTFT).
Full Metric & Specification Comparison
| Metric | Claude Sonnet 5.5 | Gemini 3.1 Pro (Preview) | Advantage |
|---|---|---|---|
| Provider | Anthropic | - | |
| Input Token Cost (1M) | $2.000 | $2.000 | Tie |
| Output Token Cost (1M) | $10.000 | $12.000 | Claude Sonnet 5.5 |
| Context Window | 1,000k tokens | 1,000k tokens | Tie |
| AA Intelligence Index | 55/100 | Unrated | Unrated |
| Streaming Latency | Fast | Fast | - |
Key Architectural Takeaways
- Input Token Cost: Claude Sonnet 5.5 is $2.00/1M vs Gemini 3.1 Pro (Preview) at $2.00/1M
- Output Token Cost: Claude Sonnet 5.5 is $10.00/1M vs Gemini 3.1 Pro (Preview) at $12.00/1M
- Context Window: Claude Sonnet 5.5 supports 1,000k tokens vs Gemini 3.1 Pro (Preview) with 1,000k tokens
- Benchmark Intelligence Rating: not rated for one or both models
- Inference Latency: Claude Sonnet 5.5 is rated Fast vs Gemini 3.1 Pro (Preview) rated Fast
Calculate Your Team's Exact Bill Difference
Drag the sliders below to see real-time cost divergences based on your daily token consumption.
Deploying Claude Sonnet 5.5 over Gemini 3.1 Pro (Preview) saves $15.00/mo ($180/yr) at this volume.
Frequently Asked Questions
Is Claude Sonnet 5.5 cheaper than Gemini 3.1 Pro (Preview)?
Claude Sonnet 5.5 is significantly more economical, charging $2.00/1M input compared to $2.00/1M for Gemini 3.1 Pro (Preview).
Which model should I choose for production?
If your primary constraint is API cost and high query throughput, choose Claude Sonnet 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 Gemini 3.1 Pro (Preview)?
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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