Claude Sonnet 5.5 (AU) vs Gemini 3 Pro
Claude Sonnet 5.5 (AU) is cheaper on output tokens, while Gemini 3 Pro offers a larger context window. Choose Claude Sonnet 5.5 (AU) or Gemini 3 Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Claude Sonnet 5.5 (AU) | Gemini 3 Pro |
|---|---|---|
| Provider | Amazon Bedrock | OpenCode |
| Input / 1M tokens | $2.20 | $2.00 |
| Output / 1M tokens | $11.00 | $12.00 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | No | No |
| Released | Sep 2026 | Nov 2025 |
| LiveBench score | — | 73.5 |
| LMArena (Chatbot Arena) Elo score | — | 1479 |
| LMArena WebDev Elo score | — | 1440 |
| Epoch Capabilities Index score | — | 153 |
| LMArena Vision Elo score | — | 1305 |
| SWE-bench Multilingual score | — | 68.7 |
FAQ
Is Claude Sonnet 5.5 (AU) or Gemini 3 Pro cheaper?
Claude Sonnet 5.5 (AU) is cheaper on output tokens ($11.00 vs $12.00 per 1M).
Which has the larger context window, Claude Sonnet 5.5 (AU) or Gemini 3 Pro?
Gemini 3 Pro has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.