What is Kimi K2.5 API?
Kimi K2.5 is the latest flagship large language model from Moonshot AI, the company behind the popular Kimi chatbot. As a significant upgrade over earlier Kimi models, K2.5 delivers breakthrough performance across reasoning, code generation, and multilingual tasks, making it one of the most capable models available through the Kimi API ecosystem.
The Kimi K2.5 API provides developers with programmatic access to this state-of-the-art model through a standard OpenAI-compatible interface. With a massive 200K token context window, K2.5 can process entire codebases, lengthy documents, and complex multi-turn conversations without losing context.
Whether you are building AI-powered coding assistants, document analysis tools, or conversational agents, the Kimi K2.5 API offers the performance and flexibility you need. Access it through the official platform.moonshot.cn or through our proxy service at a fraction of the cost.
Kimi K2.5 API Features
Kimi K2.5 introduces significant improvements over its predecessors. Here are the core capabilities that make the Kimi K2.5 API stand out:
Advanced Reasoning
State-of-the-art chain-of-thought reasoning for complex problem solving, mathematical proofs, and logical deduction. K2.5 matches or exceeds GPT-4 level reasoning on many benchmarks.
Superior Coding
Excellent code generation, debugging, and refactoring across Python, JavaScript, TypeScript, Go, Rust, and more. Ideal for building AI-powered development tools and coding assistants.
200K Context Window
Process up to 200,000 tokens in a single request. Analyze entire codebases, long research papers, legal documents, or maintain extensive conversation histories without truncation.
Multilingual Support
Native-level performance in Chinese and English with strong support for Japanese, Korean, French, German, Spanish, and many other languages. Perfect for global applications.
How to Access Kimi K2.5 API
There are two ways to access the Kimi K2.5 API: through the official Moonshot platform or through our discounted proxy service.
Official Platform
Sign up at platform.moonshot.cn to get your API key directly from Moonshot AI.
- •Direct access from Moonshot AI
- •Full official pricing
- •May require Chinese phone verification
Our Proxy Service
40% OFFAccess Kimi K2.5 through our OpenAI-compatible proxy at a significant discount - no Chinese phone number needed.
- ✓40% of official price - save 60%
- ✓OpenAI SDK compatible endpoint
- ✓No Chinese phone verification required
- ✓Global low-latency access
Kimi K2.5 API Pricing Comparison
Compare pricing across Kimi models. Our proxy service offers all models at 40% of the official price, saving you 60% on every API call.
| Model | Context | Official Input | Official Output | Our Input | Our Output |
|---|---|---|---|---|---|
| kimi-k2.5 | 200K | ¥60 / 1M tokens | ¥60 / 1M tokens | ¥24 / 1M tokens | ¥24 / 1M tokens |
| kimi-k2 | 128K | ¥40 / 1M tokens | ¥40 / 1M tokens | ¥16 / 1M tokens | ¥16 / 1M tokens |
| moonshot-v1-128k | 128K | ¥60 / 1M tokens | ¥60 / 1M tokens | ¥24 / 1M tokens | ¥24 / 1M tokens |
* Pricing is approximate and subject to change. Visit our pricing page for the latest rates.
Kimi K2.5 API Code Example
The Kimi K2.5 API is fully compatible with the OpenAI Python SDK. Simply point the base URL to our proxy endpoint and use the kimi-k2.5 model name.
Python (OpenAI SDK)
from openai import OpenAI
client = OpenAI(
api_key="your_api_key",
base_url="https://kimi-api.com/v1"
)
response = client.chat.completions.create(
model="kimi-k2.5",
messages=[
{
"role": "system",
"content": "You are a helpful AI assistant with expertise in coding and reasoning."
},
{
"role": "user",
"content": "Write a Python function that implements binary search on a sorted list. Include type hints and docstrings."
}
],
temperature=0.7,
max_tokens=4096
)
print(response.choices[0].message.content)cURL
curl -X POST "https://kimi-api.com/v1/chat/completions" \
-H "Authorization: Bearer your_api_key" \
-H "Content-Type: application/json" \
-d '{
"model": "kimi-k2.5",
"messages": [
{"role": "system", "content": "You are a helpful assistant."},
{"role": "user", "content": "Explain the differences between TCP and UDP."}
],
"temperature": 0.7,
"max_tokens": 2048
}'Kimi K2.5 vs Competitors
How does Kimi K2.5 stack up against other leading large language models? Here is a detailed comparison:
| Feature | Kimi K2.5 | GPT-4 | Claude 3 |
|---|---|---|---|
| Context Window | 200K tokens | 128K tokens | 200K tokens |
| Reasoning | Excellent | Excellent | Excellent |
| Coding | Excellent | Excellent | Very Good |
| Chinese Language | Native | Good | Good |
| English Language | Excellent | Native | Native |
| OpenAI SDK Compatible | Yes | Yes | Via Adapter |
| Proxy Price (40% Off) | Available | N/A | N/A |
Related Resources
Explore more guides and tools to get the most out of the Kimi API ecosystem:
Get Kimi API Key
Step-by-step guide to obtaining your Kimi API key for K2.5 and other models
Learn more →Kimi Coding Plan
Special pricing plans for developers who use Kimi K2.5 for coding tasks
Learn more →Kimi Code
Use Kimi K2.5 as your AI coding assistant with IDE integration
Learn more →Kimi CLI
Access Kimi K2.5 directly from your terminal with the official CLI tool
Learn more →Text API Docs
Complete API reference for text generation with all Kimi models
Learn more →Pricing
Full pricing details for all Kimi models including K2.5, K2, and more
Learn more →