Claude Sonnet 5 vs Gemini 3.5 Flash Lite
Price, context window & benchmark comparison
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Verdict: Gemini 3.5 Flash Lite is 4.7× cheaper than Claude Sonnet 5 on a typical 3:1 input/output mix. Claude Sonnet 5 scores higher on the Artificial Analysis Intelligence Index (38.2 vs 22.2). Gemini 3.5 Flash Lite has the larger context window (1M vs 1M).
| Claude Sonnet 5 | Gemini 3.5 Flash Lite | |
|---|---|---|
| Input price / 1M | $2.00 | $0.30 |
| Output price / 1M | $10.00 | $2.50 |
| Blended price (3:1) | $4.00 | $0.85 |
| Cached input / 1M | $0.20 | $0.03 |
| Context window | 1M | 1M |
| Max output | 128K | 66K |
| Intelligence index | 38.2 | 22.2 |
| Coding index | 71.5 | 49.3 |
| Providers | 10 | 8 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-06-30 | 2026-07-21 |
| Retirement | — | — |
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FAQ
Which is cheaper, Claude Sonnet 5 or Gemini 3.5 Flash Lite?
Gemini 3.5 Flash Lite is 4.7× cheaper than Claude Sonnet 5 on a typical 3:1 input/output mix.
Claude Sonnet 5 vs Gemini 3.5 Flash Lite: which has a bigger context window?
Claude Sonnet 5: 1,000,000 tokens. Gemini 3.5 Flash Lite: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Claude Sonnet 5 ≈ $9,000, Gemini 3.5 Flash Lite ≈ $1,850.
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