Who is building the agent operating system?
Twelve dimensions across seven providers. Re-graded as announcements land, with the market's reaction shown alongside.
OpenAI · Assistant Intelligence
Raw capability · updated 2026-06-01
Frontier reasoning and the assistant most users measure everyone else against.
How smart is the assistant at the core reasoning, knowledge, and generation tasks people actually throw at it? Frontier benchmark standing, but weighted toward real assistant quality rather than leaderboard maxing.
- AnalysisA Guide to Which AI to Use in the Agentic EraOne Useful Thing (Ethan Mollick) · 2026-02-18
A models/apps/harnesses framework: the harness that lets a model take real actions now matters as much as IQ.
- NewsOpenAI fires back at Google with GPT-5.2 after 'code red' memoTechCrunch · 2025-12-11
Frames the rapid GPT-5.2 release as a competitive response to Gemini 3, with internal anxiety about losing the frontier.
- PrimaryIntroducing GPT-5OpenAI · 2025-08-07
OpenAI's launch of GPT-5 as a unified system that decides when to answer fast vs reason longer, priced to maximize reach.