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 cost-effective pricing at $0.50/1M input and $2.80/1M output tokens, native tool calling support, open weights architecture. Access Kimi K2.5 via the TensorX API with up to 262K output tokens.
Capabilities
Input Modalities
textimagevideo
Output Modalities
text
Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsOpen
Temperature
Fixed
Attachment
Supported
Limits
Context Window
262K
Tokens
Input Limit
262K
Tokens
Max Output
262K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.50
Output
$2.80
Caching (per 1M tokens)
Read
$0.13
Write
$0.63
Frequently Asked Questions
Kimi K2.5 by TensorX costs $0.50 per 1M input tokens and $2.80 per 1M output tokens. Cached reads cost $0.13 per 1M tokens. Cache writes cost $0.63 per 1M tokens.
Model Details
ID
moonshotai/kimi-k2.5
Provider
TensorXFamily
kimi-k2
Release Date
Jan 1, 2026
Knowledge Cutoff
Jan 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
TENSORX_API_KEY
API Base URL
https://api.tensorx.ai/v1