Kimi
The Kimi model produced by Moonshot AI offers excellent conversational services.
This is only a basic call example. See the full docs for more parameters and advanced usage.
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Kimi K3 API
Flagship Model for Programming & Agents
Call Kimi K3 using the OpenAI-compatible format. 1M Token context, native visual understanding, and long-horizon programming capabilities, with reasoning effort controlled via reasoning_effort.
Why Use Kimi Through Ace Data Cloud?
Kimi K3 is Moonshot AI's flagship model, designed for long-horizon programming, complex reasoning, and end-to-end knowledge work. It features a 1M Token context window, enabling sustained understanding of large codebases and coordination of tools to complete multi-step tasks.
Ace Data Cloud provides Kimi K3 and K2 series APIs in an OpenAI-compatible format. Existing OpenAI SDKs can connect by simply changing the base URL and model name.
Core Capabilities of the Kimi K3 API
A unified interface for complex programming, agents, and knowledge work
OpenAI-Compatible Format
Call Kimi K3 via /v1/chat/completions, compatible with the OpenAI SDK, streaming responses, and tool calls.
Max Reasoning Mode
K3 always enables reasoning. The only currently supported value for reasoning_effort is max, suitable for complex programming, mathematics, and agent tasks.
Chinese-English Bilingual Optimization
Excellent native Chinese understanding, with outstanding English performance as well. Ideal for Chinese-language scenarios, cross-language translation, and multilingual application development.
Top-Tier Programming Capabilities
K3 is designed for long-horizon programming tasks, capable of understanding large codebases, coordinating terminal tools, and completing code generation, debugging, and review.
Streaming
Supports SSE streaming with real-time token-by-token output. Set stream: true to enable streaming responses.
Structured Output
Specify the JSON output format with response_format, and use JSON Schema to obtain structured API response data.
from openai import OpenAI
client = OpenAI(
api_key="YOUR_API_KEY",
base_url="https://api.acedata.cloud/v1"
)
response = client.chat.completions.create(
model="kimi-k3",
messages=[
{"role": "system", "content": "请简洁回答，只输出经过测试的 Python 代码，不要解释；确保重复元素不会导致无限递归。"},
{"role": "user", "content": "用 Python 实现一个快速排序算法"}
],
reasoning_effort="max",
stream=False
)
print(response.choices[0].message.content)
{
"id": "msg_HvLVj1NEhTi0osEguZllkYpI",
"object": "chat.completion",
"created": 1784466676,
"model": "kimi-k3",
"choices": [{
"index": 0,
"message": {
"role": "assistant",
"content": "```python\ndef quicksort(arr):\n if len(arr) <= 1:\n return arr\n pivot = arr[len(arr) // 2]\n left = [x for x in arr if x < pivot]\n middle = [x for x in arr if x == pivot]\n right = [x for x in arr if x > pivot]\n return quicksort(left) + middle + quicksort(right)\n```"
},
"finish_reason": "stop"
}],
"usage": {
"prompt_tokens": 128,
"completion_tokens": 1493,
"total_tokens": 1621
}
}
Switch with One Line of OpenAI SDK Code
Simply replace base_url and model to use Kimi K3 in your existing OpenAI project, and adjust reasoning effort through reasoning_effort.
Get an API Key
Register with Ace Data Cloud and obtain a Bearer Token from the console
Modify base_url
Set base_url to https://api.acedata.cloud/v1
Select a Kimi Model
Set model to kimi-k3; to explicitly configure reasoning parameters, use reasoning_effort="max"
What Can You Build with the Kimi API?
From Chinese NLP to long-horizon programming—developers are building these applications with Kimi K3
Chinese Conversational Assistants
Build high-quality Chinese customer service, knowledge Q&A, and personal AI assistants with native Chinese understanding that far surpasses general-purpose models
Code Generation and Review
K3 supports code generation, bug fixes, code review, architecture recommendations, and multi-step terminal tool collaboration
Cross-Language Translation
Native Chinese-English bilingual capabilities, ideal for high-quality translation, localization, and multilingual content generation
Deep Reasoning and Analysis
Math problem solving, logical reasoning, data analysis—Thinking mode provides step-by-step reasoning
Get Started Quickly in 3 Steps
From registration to sending your first Kimi K3 message, it takes less than 3 minutes
Register and Get an API Key
Create a free account on Ace Data Cloud and generate your Bearer Token from the console.
Call It Using the OpenAI SDK
Set base_url to Ace Data Cloud and select kimi-k3 to get started.
Integrate and Scale
Embed Kimi K3 in your application. The OpenAI-compatible format makes switching between models effortless.
Why choose Ace Data Cloud instead of using the Moonshot API directly?
Comprehensive advantages in format compatibility, global availability, and unified interfaces
| Comparison dimension | Ace Data Cloud | Direct Moonshot connection |
|---|---|---|
| OpenAI-compatible format | ✓ | Partially compatible |
| Available globally | ✓ Ready to use out of the box | ✗ Restricted in some regions |
| Streaming | ✓ | ✓ |
| Unified interface for multiple models | ✓ GPT / Claude / Gemini / Kimi | ✗ Kimi only |
| Pay as you go | ✓ Flexible top-ups | ✓ |
| No overseas mobile number required for registration | ✓ | ✗ Chinese mobile number required |
| Thinking reasoning model | ✓ | ✓ |
Choose the right Kimi model
K3 is suited for the most complex programming and Agent tasks, while K2.6 and K2.5 cover general scenarios
K2.6
Efficient general-purposeA general-purpose model that supports reasoning, tool calling, and multimodal input, suitable for everyday conversations and Agent tasks.
- ✓ 256K context
- ✓ Switchable Thinking
- ✓ Suitable for general conversations and analysis
- ✓ Supports tool calling
Kimi K3
Flagship modelA flagship model for long-horizon programming and complex Agent workflows, with reasoning always enabled and currently supporting Max reasoning mode.
- ✓ 1M Token context
- ✓ reasoning_effort: max
- ✓ Tool calling and streaming output
- ✓ Top choice for complex programming tasks
K2.5
CompatibleA stable K2 series model, suitable for general reasoning and content generation requiring 256K context.
- ✓ 256K context
- ✓ Switchable Thinking
- ✓ Enhanced instruction following
- ✓ More precise output control
Kimi API Pricing
Pay by Token usage. No subscription fees, no hidden charges.
Volume packages offer greater discounts
Charged based on actual Token usage, with separate pricing for input and output
- ✓ Transparent model-based pricing for K3, K2.6, and K2.5
- ✓ Reasoning Tokens billed based on actual usage
- ✓ No subscription fees or minimum spend
- ✓ Input and output priced separately
- ✓ Streaming — Free
Dedicated solutions for high-volume teams
- ✓ Volume-based tiered discounts
- ✓ Priority support and account manager
- ✓ Custom rate limits
- ✓ SLA guarantee
- ✓ Private deployment solutions
Frequently Asked Questions
Everything you need to know about using the Kimi K3 API
What tasks is Kimi K3 suitable for? ▾
Kimi K3 is Moonshot AI's flagship MoE model, with 2.8 trillion total parameters and a 1M-token context window. It is suitable for large codebase understanding, long-horizon programming, complex reasoning, tool calling, and end-to-end knowledge work.
Does it support the OpenAI SDK? ▾
Yes. When using the OpenAI SDK, set base_url to https://api.acedata.cloud/v1 and set model to kimi-k3. K3 also supports tool calling, streaming responses, and reasoning_effort.
How should reasoning_effort be configured? ▾
K3 always enables reasoning. The only currently supported value is max; when omitted, max is used as well. Please use a supported value.
Official references: Thinking Effort, Model Parameter Reference, and Chat API.
How do its Chinese-language capabilities compare with GPT/Claude? ▾
The Kimi series has native strengths in Chinese understanding and generation. K3 also offers excellent capabilities for English, coding, and multilingual tasks, making it suitable for applications serving global users.
How does pricing work? ▾
Billing is based on Token usage. Input Tokens and output Tokens are priced separately, and prices vary by model. There are no subscription or monthly fees; you only pay for what you use. For specific pricing, please refer to the pricing tab on this page.
Can I use GPT, Claude, Gemini, and Kimi at the same time? ▾
Yes! Ace Data Cloud provides multiple LLMs, including GPT, Claude, Gemini, and Kimi, through a unified OpenAI-compatible interface. Simply change the model parameter to switch between models. The API format remains exactly the same, so there is no need to maintain multiple codebases. A single API Key can access all models.
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Start Using the Kimi K3 API Today
Use Kimi's flagship model and Max reasoning capabilities through an OpenAI-compatible format. Pay as you go, with no subscription fees.
Kimi Chat Completion API, compatible with the official interface format.
Packages
We offer various credit packages. The more you purchase, the higher the discount you receive.
up to46% OFF