Kimi K2.5 API — pricing & specs

Kimi K2.5 is a text model from Moonshot AI. On KeepRouter, Kimi K2.5 costs $0.6000 per 1M input tokens and $3.00 per 1M output tokens, billed pay-as-you-go with no monthly fee. Call it through a compatible KeepRouter endpoint supported by its active route, with the model id kimi-k2.5.

How pricing works for Kimi K2.5

Kimi K2.5 is billed per token — $0.6000 per 1M input tokens and $3.00 per 1M output tokens. The published price is pay-as-you-go, with no monthly fee; actual request cost depends on measured token usage.

Calling Kimi K2.5 on KeepRouter

Point a compatible client at the supported KeepRouter endpoint and set the model to kimi-k2.5. KeepRouter preserves the client-facing request shape while handling upstream routing or translation. Use POST /v1/chat/completions or, on compatible chat routes, POST /v1/messages; streaming and tool support depend on the model's active route.

cURL

curl https://keeprouter.com/v1/chat/completions \
  -H "Authorization: Bearer $KEEPROUTER_KEY" -H "Content-Type: application/json" \
  -d '{"model":"kimi-k2.5","messages":[{"role":"user","content":"Hello"}]}'

Python

from openai import OpenAI
client = OpenAI(base_url="https://keeprouter.com/v1", api_key="$KEEPROUTER_KEY")
r = client.chat.completions.create(model="kimi-k2.5", messages=[{"role":"user","content":"Hello"}])

JavaScript

import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://keeprouter.com/v1", apiKey: process.env.KEEPROUTER_KEY });
const r = await client.chat.completions.create({ model: "kimi-k2.5", messages: [{ role: "user", content: "Hello" }] });

Guides

• Call Kimi K2.5 with the OpenAI SDK
• Use Kimi K2.5 in Claude Code

Related models from Moonshot AI

• Kimi K2.6 — $0.6800 per 1M input tokens and $3.41 per 1M output tokens
• Kimi K2.7 Code (High-Speed) — $0.9500 per 1M input tokens and $8.00 per 1M output tokens
• Kimi K3 — $3.00 per 1M input tokens and $15.00 per 1M output tokens

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Prices as of 2026-07-17.