Kimi K2.5

Moonshot AIMCP Tool CallReasoning
moonshotai/kimi-k2.5Open Weights

Earlier Kimi frontier model for long-context agents, coding, and multimodal work

Benchmark Pricing$0.38 / 1M in$2.00 / 1M out$0.07 cache read
Context: 262,144 tokens•Max Output: 262,144 tokens•Knowledge: 2025-01•Released: 2026-01-27

TECHNICAL SPECIFICATIONS

Context Window262,144262.1K tokens
Max Output262,144262.1K tokens
LicenseOpen SourceSelf-hostable
Input Modalities
TextVisionVideo
Function / Tool CallingSupported (MCP Ready)
Structured OutputsGuaranteed Schema

MODEL CONTEXT PROTOCOL (MCP) READINESS

✓ Kimi K2.5 natively supports OpenAI / Anthropic format tool calling and is fully compatible with MCP servers and agent loops.

MCP Context Window Recommendations

With a context capacity of 262,144 tokens, this model can handle moderately large MCP tool definitions and multi-turn conversation logs comfortably.

STANDARDIZED BENCHMARKS & EVALS

SWE-Bench Verifiedresolved
70.8
SWE-Atlas Codebase QnAscore
13.1
SWE-Atlas Refactoringscore
20.95
SWE-Atlas Test Writingscore
25.77

API CALL INVOCATION EXAMPLE

// Example: Calling Kimi K2.5 via OpenAI SDK
import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.MOONSHOTAI_API_KEY,
});

const response = await client.chat.completions.create({
  model: "moonshotai/kimi-k2.5",
  messages: [{ role: "user", content: "Hello! Can you inspect MCP tools?" }],
});

console.log(response.choices[0].message.content);

PRICING BY PROVIDER

15 providers
NanoGPTmoonshotai/kimi-k2.5
$0.38 / $2.00$0.07 cache
Jalapeno CloudKimi-K2.5
$0.60 / $3.00$0.10 cache
Meganovamoonshotai/Kimi-K2.5
$0.45 / $2.25$0.07 cache
Novita AImoonshotai/kimi-k2.5
$0.60 / $3.00$0.10 cache
302.AIkimi-k2.5
$0.63 / $3.30
LLM Gatewayembercloud/kimi-k2.5
$0.41 / $1.98$0.23 cache
Poenovita/kimi-k2.5
$0.60 / $3.00$0.10 cache
HPC-AImoonshotai/kimi-k2.5
$0.60 / $3.00$0.10 cache
Aurikokimi-k2.5
$0.45 / $2.25$0.07 cache
Venice AIkimi-k2-5
$0.56 / $3.50$0.22 cache
AIHubMixkimi-k2.5
$0.60 / $3.00$0.10 cache
Basetenmoonshotai/Kimi-K2.5
$0.60 / $3.00$0.12 cache
Abacuskimi-k2.5
$0.60 / $3.00
Vercel AI Gatewaymoonshotai/kimi-k2.5
$0.60 / $3.00
OpenCodekimi-k2.5
$0.60 / $3.00$0.10 cache

Rates in USD per 1M tokens. Rates synchronized from models.dev public catalog.

Prompt Caching Active

This model supports prompt caching at $0.07 / 1M tokens, saving up to 81% on repetitive MCP tool definitions and system instructions.