Agent power is no longer the bottleneck
This issue is not about one model release. It is about the operating layer around AI tools. OpenAI shipped GPT-5.6 with stronger agent and cybersecurity results. Meta opened Muse Spark 1.1 to developers through a new Model API preview. Anthropic brought Fable 5 back with new safeguards and released Sonnet 5 at a sharper mid-tier price.
What changed
Codex, browser workflows, GPT-5.5, and agentic work moved closer to daily practice.
What to try
A concrete browser-based AI-agent task you can test on your own project this week.
What to read
The technical system-card signal behind stronger planning, tool use, and verification.