Kimi-K2.5 API
About
Build advanced reasoning agents with Kimi-K2.5, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge, native tool calling support, open weights architecture. Access Kimi-K2.5 via the Tencent Coding Plan (China) API with up to 33K output tokens.
Capabilities
Input Modalities
textimagevideo
Output Modalities
text
Limits
Context Window
262K
Tokens
Input Limit
262K
Tokens
Max Output
33K
Tokens
Pricing
Standard (per 1M tokens)
Input
Free
Output
Free
Caching (per 1M tokens)
Read
Free
Write
Free
Frequently Asked Questions
Kimi-K2.5 by Tencent Coding Plan (China) costs Free per 1M input tokens and Free per 1M output tokens. Cached reads cost Free per 1M tokens. Cache writes cost Free per 1M tokens.
Model Details
ID
kimi-k2.5
Provider
Tencent Coding Plan (China)Family
kimi
Release Date
Jan 27, 2026
Knowledge Cutoff
Jan 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
TENCENT_CODING_PLAN_API_KEY
API Base URL
https://api.lkeap.cloud.tencent.com/coding/v3