Kimi K3.1 Pro pricing & price history
Kimi K3.1 Pro by Moonshot AI costs $2.00 per 1M input tokens and $10.00 per 1M output tokens, with a 1M token context window. The cheapest provider currently charges $2.00 input / $10.00 output.
Price history
No price changes since tracking began on 2026-10-23. We check every 10 minutes.
Which platform runs Kimi K3.1 Pro most reliably
1 platformsBy 30-day real-traffic success rate, Moonshot AI is the most stable and also the cheapest.
| Platform | Last 30 days | Stability | 24 h | 30 min | |
|---|---|---|---|---|---|
| Moonshot AI official most stable | Consistently stableavg 100.00% | 99.9% | 100% |
Success rates come from real API traffic routed to each platform (public OpenRouter data), not our probes; each daily bar is the average of that day's samples. Green ≥ 99.5 %, yellow ≥ 97 %, orange ≥ 90 %, red < 90 %. Updated 4m ago.
Cost calculator
Cheaper alternatives to Kimi K3.1 Pro
| Model | Input | Output | Context | Intel. | |
|---|---|---|---|---|---|
Claude Haiku 5.5 Anthropic | $0.10 | $0.50 | 1M | 36.2 | compare |
GPT-6.1 Terra OpenAI | $1.00 | $5.00 | 1.1M | 51 | compare |
Muse Spark 1.3 Meta | $1.25 | $4.25 | 1M | 36.4 | compare |
About Kimi K3.1 Pro
Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D...
FAQ
How much does Kimi K3.1 Pro cost?
Kimi K3.1 Pro by Moonshot AI costs $2.00 per 1M input tokens and $10.00 per 1M output tokens, with a 1M token context window. The cheapest provider currently charges $2.00 input / $10.00 output. A typical request with 2,000 input and 500 output tokens costs about $0.009.
What is the context window of Kimi K3.1 Pro?
Kimi K3.1 Pro supports up to 1,048,576 tokens of context and up to 943,718 output tokens per request.
Has Kimi K3.1 Pro’s price changed?
No price changes recorded since ModelBank started tracking it on 2026-10-23.
Is Kimi K3.1 Pro being deprecated?
No retirement date has been announced for Kimi K3.1 Pro as of 2026-10-31.
What are cheaper alternatives to Kimi K3.1 Pro?
Cheaper options include Claude Haiku 5.5 ($0.10/$0.50), GPT-6.1 Terra ($1.00/$5.00), Muse Spark 1.3 ($1.25/$4.25).