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AI/ML API

Kimi K2 Thinking API

AI/ML API
About

Build advanced reasoning agents with Kimi K2 Thinking, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.83/1M input and $3.44/1M output tokens, native tool calling support, open weights architecture. Access Kimi K2 Thinking via the AI/ML API API with up to 98K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsOpen
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
262K

Tokens

Input Limit
262K

Tokens

Max Output
98K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.83
Output
$3.44

Caching (per 1M tokens)

Read
$0.21
Frequently Asked Questions

Kimi K2 Thinking by AI/ML API costs $0.83 per 1M input tokens and $3.44 per 1M output tokens. Cached reads cost $0.21 per 1M tokens.

Model Details
ID
moonshotai/kimi-k2-thinking
Provider
AI/ML API
Family
kimi-thinking
Release Date
Nov 6, 2025
Knowledge Cutoff
Aug 1, 2024
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
AIMLAPI_API_KEY
API Base URL
https://api.aimlapi.com/v1
Documentation