moonshotai/kimi-k2-thinking

moonshotai/kimi-k2-thinking

The open-source deep inference model launched by Dark Side of the Moon
2025-11-07
LLM
Model capability: function_call
Input:
$0.572/1M tokens
Output:
$2.286/1M tokens
Bulk order? Contact your manager for exclusive deals

API Overview

Kimi K2 Thinking is an open-source, general-purpose agent-level thinking product launched by Moonshot AI, with a core focus on expanding “thinking” as a first-class resource. It’s a deep reasoning model that tackles complex problems through ultra-long thinking tokens and continuous tool calls.

  • Industry-Leading Performance: Outperforms GPT-5 and Claude Sonnet 4.5 in benchmark tests such as HLE (Humanity's Last Exam) and BrowseComp, setting new SOTA records.
  • Ultra-Fast Experience: Leveraging native INT4 quantization technology, it boosts generation speed by approximately 2x, with API output speeds reaching 60–100 tokens per second—no more long waits for responses.

───────────────────────────────────────────────────────────────────

Core Capabilities

🤖 Model as Agent

No human intervention required—can execute 200–300 consecutive tool calls. While thinking, it uses tools continuously, automatically breaking down complex problems and achieving true autonomous search and browsing.

🧠 Deep Reasoning Engine

Supports Test-Time Scaling, allowing flexible expansion of the thinking token budget. With long-sequence reasoning and reflection mechanisms, it maintains high coherence and accuracy in complex tasks such as mathematics and coding.

🌐 All-Round Information Processing

Supports context windows up to 256k tokens and is compatible with INT4 precision. Optimized for domestic chips, it effortlessly handles long-document reading, complex information gathering, and multilingual code generation.

Playground

Log in to explore more features! Click to Log In

API Analytics

API Reference (1)

API DescriptionAPI EndpointRequest MethodStabilityParameter Description
Chat(PPIO)
POST
Stable
View Details

API Pricing

$
ModelDescriptionContextOfficial Price302.AI Price

moonshotai/kimi-k2-thinking

-
262144

Input$0.572 / 1M tokens
Output$2.286 / 1M tokens

Input$0.572/ 1M tokens
Output$2.286/ 1M tokens
Original Price