Kwaipilot’s KAT-Coder-Air V2.5 hits OpenRouter. $0.15/$0.60 pricing with a 256K context window. Open_weight AI just keeps winning.

Article automatically generated from technical news.

The open_weight ecosystem is moving insanely fast this month. KwaiKAT officially confirmed they are open-sourcing the weights for KAT-Coder-Air V2.5 incredibly soon, and the model is already live on OpenRouter via StreamLake. For anyone building autonomous developer workflows, the specs on this thing are wild for an open weight model. We are talking flagship level agentic coding that can autonomously take a massive repository issue, locate the bug, execute the code changes, an