Kimi K3 API price, and what each result really costs
Moonshot AI, listed 16 Jul 2026. Price checked 12 Nov 2026; unchanged since we started tracking it. Source: Moonshot AI's pricing page. moonshotai/kimi-k3
List price per million tokens
- Input
- $3.00
- Cached input
- $0.30
- Output
- $15.00
- Context window
- 1.05M tokens
Note: Previous generation, priced above K3.1 Pro. Cache writes: 5m $3, 1h $6. Conflict: OpenRouter headline ($0.19/$16) is a third-party host.
What it costs per task, and per task that works
Six common task shapes with typical token counts. The real cost counts the tries that get redone; the rates are examples, not measurements.
| Task | Per 1,000 tries | Per 1,000 that work, 8 in 10 | Per 1,000 that work, 6 in 10 | Per 1,000 that work, 4 in 10 |
|---|---|---|---|---|
| Support bot answer3,000 in / 300 out | $13.50 | $16.88 | $22.50 | $33.75 |
| Invoice field extraction2,500 in / 250 out | $11.25 | $14.06 | $18.75 | $28.13 |
| Lead scoring1,200 in / 100 out | $5.10 | $6.37 | $8.50 | $12.75 |
| Email reply draft1,500 in / 400 out | $10.50 | $13.13 | $17.50 | $26.25 |
| Translation900 in / 800 out | $14.70 | $18.37 | $24.50 | $36.75 |
| Search re-ranking4,000 in / 50 out | $12.75 | $15.94 | $21.25 | $31.88 |
Work out your own real cost per resultTest Kimi K3 on your own prompt
Compare Kimi K3 with
- Kimi K3.1 Pro$2.00 in / $10.00 outSwitch cost
- Claude Sonnet 4.6$3.00 in / $15.00 outSwitch cost
- Claude Sonnet 4.5$3.00 in / $15.00 outSwitch cost
- GPT-5.6 Terra$2.00 in / $12.00 outSwitch cost
- Gemini 3.1 Pro$2.00 in / $12.00 outSwitch cost
Questions
How much does the Kimi K3 API cost?
$3.00 per million input tokens and $15.00 per million output tokens, or $0.30 per million for cached input. Price checked 12 Nov 2026; unchanged since we started tracking it.
What does a result that works really cost with Kimi K3?
A support bot answer (about 3,000 tokens in, 300 out) costs $0.013 per try. If 6 in 10 work first time, each answer that works really costs $0.022, because the redone ones were paid for too.