Claude Sonnet 5.5 vs Gemini 4 Carbon
Price, context window & benchmark comparison
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Verdict: Gemini 4 Carbon scores higher on the Artificial Analysis Intelligence Index (60 vs 54.5). Gemini 4 Carbon has the larger context window (1M vs 1M).
| Claude Sonnet 5.5 | Gemini 4 Carbon | |
|---|---|---|
| Input price / 1M | $2.00 | $2.00 |
| Output price / 1M | $10.00 | $10.00 |
| Blended price (3:1) | $4.00 | $4.00 |
| Cached input / 1M | $0.10 | $0.10 |
| Context window | 1M | 1M |
| Max output | 128K | 944K |
| Intelligence index | 54.5 | 60 |
| Coding index | — | — |
| Providers | 10 | 7 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-09-28 | 2026-11-10 |
| Retirement | — | — |
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FAQ
Which is cheaper, Claude Sonnet 5.5 or Gemini 4 Carbon?
Claude Sonnet 5.5 and Gemini 4 Carbon are priced identically.
Claude Sonnet 5.5 vs Gemini 4 Carbon: which has a bigger context window?
Claude Sonnet 5.5: 1,000,000 tokens. Gemini 4 Carbon: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Claude Sonnet 5.5 ≈ $9,000, Gemini 4 Carbon ≈ $9,000.
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