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Mattias chaw
Mattias chaw

Posted on • Originally published at aiwave.live

Kimi K2.5 API: Complete Guide & Pricing 2026 — Access Moonshot AI via OpenAI API

Kimi K2.5 is Moonshot AI's most advanced language model, offering an exceptional 200K token context window — one of the longest available from any Chinese AI provider. It excels at long-document understanding, coding, and multilingual tasks.

Kimi K2.5 Pricing

Model Input (1M tokens) Output (1M tokens) Context
Kimi K2.5 $0.55 $1.80 200K
Moonshot V1 (128K) $0.30 $0.80 128K
DeepSeek V4 Pro $0.14 $0.28 128K
GPT-4o $2.50 $10.00 128K

Kimi K2.5's 200K context window is 56% larger than DeepSeek V4 and GPT-4o, making it ideal for legal document analysis, academic paper review, and codebase understanding.

Quick Start: Python

from openai import OpenAI

client = OpenAI(
    base_url="https://aiwave.live/v1",
    api_key="***"
)

response = client.chat.completions.create(
    model="kimi-k2.5",
    messages=[
        {"role": "system", "content": "You are an expert document analyst."},
        {"role": "user", "content": "Summarize this 200-page legal document."}
    ]
)
print(response.choices[0].message.content)
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Kimi K2.5 vs DeepSeek V4 vs GPT-4o

  • Long documents → Kimi K2.5 (200K context, best choice)
  • Cost-sensitive apps → DeepSeek V4 Pro ($0.14/M, 10x cheaper than GPT-4o)
  • Chinese language → Kimi K2.5 (native Chinese proficiency)
  • Coding & reasoning → DeepSeek V4 Pro (top-tier at lower cost)

With AIWave, you can access both Kimi K2.5 and DeepSeek V4 through a single OpenAI-compatible API key — just change the model parameter.

Full guide with detailed code examples: Kimi K2.5 API Guide

Get $5 free credit to try Kimi K2.5 — no credit card, no Chinese phone number required.

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