LLM Hacker News 6d ago 2 min read
OpenAI announced GPT-5.4 on March 5, 2026, adding a new general-purpose model and GPT-5.4 Pro with stronger computer use, tool search efficiency, and benchmark improvements over GPT-5.2.
#tool-use
LLM Reddit Feb 28, 2026 2 min read
A Reddit post in r/artificial drew attention to a security study evaluating how hidden Unicode instructions can steer tool-enabled LLM agents, reporting 8,308 graded outputs across five frontier models.