Introducing Apex: A Fast, Specialized Model for React Native

kept by eddie may 28

Callstack announces Apex, a React Native coding model based on Gemma 4 that delivers fast, specialized answers at a fraction of the cost of general models.

I built a vulnerable app and spent $1,500 seeing if LLMs could hack it
A security researcher built a deliberately vulnerable Firebase-based app and spent $1,500 testing whether LLMs could exploit it; GPT-5.5 succeeded 70% of the time, while most others failed due to guardrails or misdirected focus.
also on React Native, #ai-coding, #developer-tools
json-render | AI-generated UI with guardrails
json-render lets developers generate UIs from prompts using only predefined components and actions, ensuring safe, predictable, and streamable output.
also on React Native, #ai-coding, #developer-tools
How to setup a local coding agent on macOS
A developer details setting up a local coding agent on macOS using llama.cpp, Gemma 4, and Pi for real-time terminal-based AI assistance.
also on Gemma 4, #ai-coding, #developer-tools
Multi-token-prediction in Gemma 4
Google released Multi-Token Prediction drafters for Gemma 4 that use speculative decoding to achieve up to 3x faster inference without output quality loss.
also on Gemma 4, #ai-coding, #developer-tools