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StreamLake KwaiKAT•July 10, 2026
KAT-Coder-Pro & Air
Paid
AI Agent
Coding Assistant
Software Engineering
Reinforcement Learning
### TL;DR
KAT-Coder is a flagship agentic coding model developed by Kuaishou designed for end-to-end software engineering tasks such as bug fixing, feature implementation, and repository-level refactoring. By leveraging large-scale agentic reinforcement learning, it acts as an autonomous developer capable of navigating codebases, executing tests, and iterating on solutions.
Key Insights & Metrics
Pricing
USD per million tokens - Pro: $0.74 Input & $2.96 output and Air: $0.15 & $0.60 output
Cost structure
Version
2.5
Current release version
Hardware
Cloud-hosted API; no specific local hardware required
Compute requirements
Category
Paid
Licensing model
Region
China
Primary region
Key Features
- Autonomous agentic workflows for multi-step software engineering tasks
- Multi-file reasoning and repository-level code navigation
- Compatible with 10+ mainstream AI coding scaffolds (e.g., Claude Code, Cline, OpenHands)
- Training optimized via multi-stage reinforcement learning (RFT/RL)
- Supports parallel tool calling and long-context interaction
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