Kimi K3.1 Pro (Moonshot)
Kimi K3.1 Pro by Moonshot scores highest on writing (89/100) in Nivana’s weekly evals. Price: $2 in / $10 out per 1M tokens. Context window: 1,048,576 tokens.
Nivana’s router keeps Kimi K3.1 Pro in the pool as a fallback and for requests where its price or speed wins.
Quality by task
| Task | Score (0–100) |
|---|---|
| writing | 89 |
| coding | 87 |
| structured data and JSON | 86 |
| long documents | 86 |
| quick answers and everyday questions | 84 |
| translation | 84 |
| reasoning and analysis | 83 |
| maths | 80 |
Compare: Kimi K3.1 Pro vs DeepSeek V4 Pro