Kimi K3.1 Pro API
Kimi K3.1 Pro, K3 and K2.7 Code — compare live route prices for coding, agents and long-document work. Pay per token with one OpenAI-compatible key.
Access Kimi K3.1 Pro through APIMaster for coding, agents and multimodal analysis. Pro supports a 1,048,576-token context, text/image/video input, text output, always-on reasoning and tool calling. Compare its current channels with Kimi K3 and K2.7 Code below; prices and availability come from the live marketplace. One OpenAI-compatible API key also covers Claude, GPT and DeepSeek.
Coding Plan
Join Coding Plan and use Kimi K3 at 40% off
Plus discounts on other coding models:
- DeepSeek V4 Pro50% off
- GLM 5.350% off
- MiniMax M340% off
- Qwen 3.8 Max50% off
What is Kimi API?
Kimi is Moonshot AI's model family. K3.1 Pro builds on K3 with stronger long-running coding, 3D project and financial-analysis capabilities. It supports reasoning effort levels low, high and max. Use the exact API model ID kimi-k3.1-pro; the separate Pro Highspeed variant is not listed here while it has no active public APIMaster route.
Kimi K3.1 Pro: 1,048,576-token context, text/image/video input and text output. Always-on reasoning with low/high/max effort, tool calling and structured output for coding and agent workflows. Compare live channel prices below; the API model ID is kimi-k3.1-pro.
kimi-k3.1-proProvider 320
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Every Kimi channel is fingerprint-checked before it's listed, so you get the real model.
Kimi API — Pricing
| Model | Our price | Official | Save |
|---|---|---|---|
| Kimi K3.1 Pro | $0.6/M | $2/M | 70% |
| Kimi K3 | $1.2/M | $3/M | 60% |
| Kimi K2.7 Code | $0.38/M | $0.95/M | 60% |
Capabilities
1M-token context
Kimi K3.1 Pro's 1,048,576-token window covers whole repos, long documents and extended agent runs.
Long-horizon coding & agents
Tuned for multi-file code changes, tool calling and structured output across long tasks.
Cost-efficient
Compare current K3.1 Pro, K3 and K2.7 Code channel prices and discounts; pay only for the tokens you use.
Use cases
Quick start
curl https://apimaster.ai/v1/chat/completions \
-H "Authorization: Bearer $APIMASTER_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "kimi-k3.1-pro",
"messages": [{ "role": "user", "content": "Hello" }]
}'Kimi API — Frequently asked questions
Should I choose Kimi K3.1 Pro, K3 or K2.7 Code?
Choose K3.1 Pro for the latest coding, agent and multimodal capabilities with 1M context. K3 remains an earlier flagship option, and K2.7 Code suits lighter coding tasks. Compare each model's live route prices and supported limits before choosing.
How is it billed? Is there a minimum?
Billed per token (input + output) — see the price table above. Pay-as-you-go via Alipay, WeChat Pay, USDT and credit card, from $1.
Is it OpenAI-compatible?
Yes — it works with Cursor, Claude Code and any OpenAI SDK by changing the base URL and key.
Is my data safe?
Yes. Your API data is not stored or used for training, and all requests are sent over encrypted connections.
Other models
How to Get Started
Top Up Your Balance
Add credits via USDT or Epay. One balance works across all models and providers.
Top Up NowCreate Your API Key
Sign up and create an OpenAI-compatible API key in 3 seconds. No credit card required.
Create API KeyPlug Into Your Code or Agent
Swap in your APIMaster key and base URL — works with any OpenAI-compatible tool: Claude Code, Cursor, LangChain, LiteLLM, and more.
View Docs