Kimi K3.1 Pro vs Mercury 3
Price, context window & benchmark comparison
VS
Compare different models
Verdict: Mercury 3 is 24.6× cheaper than Kimi K3.1 Pro on a typical 3:1 input/output mix. Kimi K3.1 Pro has the larger context window (1M vs 1M).
| Kimi K3.1 Pro | Mercury 3 | |
|---|---|---|
| Input price / 1M | $2.00 | $0.10 |
| Output price / 1M | $10.00 | $0.35 |
| Blended price (3:1) | $4.00 | $0.16 |
| Cached input / 1M | $0.20 | $0.01 |
| Context window | 1M | 1M |
| Max output | 944K | 131K |
| Intelligence index | 46 | — |
| Coding index | — | — |
| Providers | 2 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-10-23 | 2026-10-16 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, Kimi K3.1 Pro or Mercury 3?
Mercury 3 is 24.6× cheaper than Kimi K3.1 Pro on a typical 3:1 input/output mix.
Kimi K3.1 Pro vs Mercury 3: which has a bigger context window?
Kimi K3.1 Pro: 1,048,576 tokens. Mercury 3: 1,000,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Kimi K3.1 Pro ≈ $9,000, Mercury 3 ≈ $375.00.
More comparisons
Kimi K3.1 Pro vs GPT-6.1 TerraKimi K3.1 Pro vs GPT-6.1 Terra ProKimi K3.1 Pro vs MiniMax M3.1 FlashKimi K3.1 Pro vs DeepSeek V4.1 Flash 1017Kimi K3.1 Pro vs Nemotron 3.5 Super VLKimi K3.1 Pro vs Gemini 4 ArgonKimi K3.1 Pro vs Claude Haiku 5.5Kimi K3.1 Pro vs Nano Banana 2.1Kimi K3.1 Pro vs Mistral Large 4Kimi K3.1 Pro vs GPT-6.1 Sol ProKimi K3.1 Pro vs GPT-6.1 SolKimi K3.1 Pro vs Claude Sonnet 5.5Kimi K3.1 Pro vs GLM 5.3 PrimeKimi K3.1 Pro vs Qwen3.8 Max PrimeKimi K3.1 Pro vs Command A+Kimi K3.1 Pro vs GPT-6 Luna ProMercury 3 vs GPT-6.1 TerraMercury 3 vs GPT-6.1 Terra ProMercury 3 vs MiniMax M3.1 FlashMercury 3 vs DeepSeek V4.1 Flash 1017Mercury 3 vs Nemotron 3.5 Super VLMercury 3 vs Gemini 4 ArgonMercury 3 vs Claude Haiku 5.5Mercury 3 vs Nano Banana 2.1