Moonshot AI: Kimi K2 Turbo Preview
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Kimi K2 Turbo Preview is Moonshot AI's high-speed serving tier for Kimi K2, the same trillion-parameter Mixture-of-Experts model as the standard endpoint, run on faster inference infrastructure. Moonshot launched it in August 2025 at 40 tokens per second output, four times the standard endpoint at the time, then raised it later that month to around 60 tokens per second with peaks up to 100.
Because the weights are identical, it keeps K2's strengths in agentic tool calling and code generation, with a 256K context window and an OpenAI-compatible API that supports function calling. The tradeoff is price. At $1.15 per million input tokens and $8 per million output tokens, it costs roughly two to three times the standard K2 endpoint.
It suits latency-sensitive workloads such as interactive chat, coding assistants, and agent loops where output speed is the bottleneck.
Context Window 262K
tokens
Max Output 262K
tokens
Input Cost $1.15
per million tokens
Output Cost $8
per million tokens
Input text
modalities
Tool Use Yes
Release Date Aug 1, 2025
Code Example
Add AI to your app with the Puter.js AI API — no API keys or setup required.
// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.chat("Explain quantum computing in simple terms").then(response => {
document.body.innerHTML = response.message.content;
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.chat("Explain quantum computing in simple terms").then(response => {
document.body.innerHTML = response.message.content;
});
</script>
</body>
</html>
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ChatKimi K2.7 Code Highspeed
Kimi K2.7 Code Highspeed is Moonshot AI's accelerated serving route for Kimi K2.7 Code, its open-weight coding-agent model. It runs the same weights as the standard route; the difference is inference speed, not capability. Moonshot's launch announcement reported throughput of around 180 tokens per second on coding tasks with median-length inputs and up to 260 tokens per second on shorter-context tasks. Access rolled out first to Kimi Code Beta Program members, Kimi API developers, and Kimi Business users, with Moonshot noting capacity limits at launch. Like the base model, it runs in always-on thinking mode with a 262K-token context window, supports tool calling, and accepts text, image, and video input. Input costs $1.90 per million tokens and output $8, making it a fit for interactive coding agents and IDE assistants where response speed matters more than per-token cost.
Frequently Asked Questions
Kimi K2 Turbo Preview is no longer available through Puter.js. Explore other AI models for alternatives.
| Price per 1M tokens | |
|---|---|
| Input | $1.15 |
| Output | $8 |
Kimi K2 Turbo Preview was created by Moonshot AI and released on Aug 1, 2025.
Kimi K2 Turbo Preview supports a context window of 262K tokens. For reference, that is roughly equivalent to 524 pages of text.
Kimi K2 Turbo Preview can generate up to 262K tokens in a single response.
Kimi K2 Turbo Preview accepts the following input types: text. It produces: text.
Yes, Kimi K2 Turbo Preview supports tool use (function calling), allowing it to interact with external tools, APIs, and data sources as part of its response flow.
Yes — the Kimi K2 Turbo Preview API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
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