Kimi K3 vs Kimi K3.1 Pro
Price, context window & benchmark comparison
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Compare different models
Verdict: Kimi K3.1 Pro is 3% cheaper than Kimi K3 on a typical 3:1 input/output mix. Kimi K3.1 Pro scores higher on the Artificial Analysis Intelligence Index (46.5 vs 17.4).
| Kimi K3 | Kimi K3.1 Pro | |
|---|---|---|
| Input price / 1M | $0.19 | $2.00 |
| Output price / 1M | $16.00 | $10.00 |
| Blended price (3:1) | $4.14 | $4.00 |
| Cached input / 1M | $0.18 | $0.20 |
| Context window | 1M | 1M |
| Max output | 944K | 944K |
| Intelligence index | 17.4 | 46.5 |
| Coding index | 72 | — |
| Providers | 27 | 23 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-07-16 | 2026-10-23 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, Kimi K3 or Kimi K3.1 Pro?
Kimi K3.1 Pro is 3% cheaper than Kimi K3 on a typical 3:1 input/output mix.
Kimi K3 vs Kimi K3.1 Pro: which has a bigger context window?
Kimi K3: 1,048,576 tokens. Kimi K3.1 Pro: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Kimi K3 ≈ $8,384, Kimi K3.1 Pro ≈ $9,000.
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