MoonshotAI: Kimi K3.1 Pro
Newmoonshotai/kimi-k3.1-proModel weightsKimi 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 creation, financial research, and end-to-end agentic knowledge work, with native image and video understanding.
- Modalities
- TextImageVideotoText
- In / out price
- $2.00 / $10.00per 1MCache read $0.20 per 1M
- Context
- 1M
- Added
- Nov 4, 2026
Providers
RedPill routes this model across providers with automatic fallbacks. Pricing is unified, so you pay the same price no matter which provider serves your request, while live metrics show first-token latency, speed, and uptime.
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Start building
Call this model from your application, or through your agents.
For applications
Point your OpenAI SDK at the Gateway. Chat, completions, and embeddings work unchanged.
For agents
Connect Claude Code, Codex, Pi, and more through Private AI Proxy. Traffic is protected while a verified session is active.
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.redpill.ai/v1",
apiKey: process.env.REDPILL_API_KEY,
});
const response = await client.chat.completions.create({
model: "moonshotai/kimi-k3.1-pro",
messages: [{ role: "user", content: "Say hello." }],
});