Gemini 3.8 Flash vs Kimi K3
Price, context window & benchmark comparison
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Verdict: Gemini 3.8 Flash is 4.0× cheaper than Kimi K3 on a typical 3:1 input/output mix. Kimi K3 scores higher on the Artificial Analysis Intelligence Index (43.6 vs 40.9).
| Gemini 3.8 Flash | Kimi K3 | |
|---|---|---|
| Input price / 1M | $0.75 | $3.00 |
| Output price / 1M | $3.75 | $15.00 |
| Blended price (3:1) | $1.50 | $6.00 |
| Cached input / 1M | $0.075 | $0.30 |
| Context window | 1M | 1M |
| Max output | 66K | 944K |
| Intelligence index | 40.9 | 43.6 |
| Coding index | 76.3 | 76.2 |
| Providers | 6 | 20 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-09-02 | 2026-07-16 |
| Retirement | — | — |
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FAQ
Which is cheaper, Gemini 3.8 Flash or Kimi K3?
Gemini 3.8 Flash is 4.0× cheaper than Kimi K3 on a typical 3:1 input/output mix.
Gemini 3.8 Flash vs Kimi K3: which has a bigger context window?
Gemini 3.8 Flash: 1,048,576 tokens. Kimi K3: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Gemini 3.8 Flash ≈ $3,375, Kimi K3 ≈ $13,500.
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