Kimi K3.1 Pro
Kimi K3.1 Pro is a Moonshot AI model available in Quad Chat, with up to 1.05M tokens of context, image input, tool calling and adjustable reasoning.
Kimi K3.1 Pro at a glance
| Lab | Moonshot AI |
|---|---|
| Available on | Go plan and up |
| Context window | 1.05M tokens |
| Max output | 1.05M tokens |
| Image input | Yes |
| Tool calling | Yes |
| Reasoning | Yes |
| Privacy lane | Private (Zero Data Retention) |
How to use Kimi K3.1 Pro in Quad Chat
- Create a free account or sign in.
- Open the model picker and choose Kimi K3.1 Pro.
- Ask, attach files, or compare the answer with another model.
Frequently asked questions
Can I use Kimi K3.1 Pro for free?
Kimi K3.1 Pro needs the Go plan ($8/month) or higher. The Free plan needs no credit card and includes other chat models, so you can try Quad Chat first and upgrade when you need Kimi K3.1 Pro. Yearly billing is up to 15% less than paying monthly.
What is the context window of Kimi K3.1 Pro?
Kimi K3.1 Pro accepts up to 1.05M tokens of context and can write up to 1.05M tokens in one reply, according to the model catalog Quad Chat routes through. Files, pasted text and earlier messages all count toward that window.
Does Kimi K3.1 Pro support images, tools and reasoning?
Kimi K3.1 Pro accepts images as input, so you can attach screenshots, photos and scanned pages. It supports tool calling. It can reason before it answers, with adjustable effort (low, high and max). You can switch to another model in the same conversation at any time.
Is Kimi K3.1 Pro private in Quad Chat?
Kimi K3.1 Pro runs on the Quad Chat Private Lane, routed to providers under Zero Data Retention terms. Quad Chat does not train models on your conversations, encrypts chats in transit and at rest, and lets you export or delete them at any time.
How much does Kimi K3.1 Pro cost in Quad Chat?
Quad Chat plans have a flat monthly price and draw usage from shared credits, not a per-token bill. For reference, the provider's API list price is $2.00 per million input tokens and $10.00 per million output tokens.
Can I compare Kimi K3.1 Pro with other models?
Yes. Send one prompt to Kimi K3.1 Pro and one or two other models, such as Kimi K2.7 Code, GPT-6.1 Sol and Gemini 4 Argon, and compare the answers side by side in the same thread. You can also switch models mid-conversation without losing your files or context.
Related models
- Kimi K2.7 Code — Moonshot AI, Free plan
- GPT-6.1 Sol — OpenAI, Pro plan and up
- Gemini 4 Argon — Google, Pro plan and up
- Claude Haiku 5.5 — Anthropic, Free plan
- Muse Spark Open — Meta, Free plan
- Inkling — Thinking Machines, Free plan
- GLM 5.3 — Z.ai, Free plan
- Grok 4.7 — xAI, Pro plan and up