Prime Intellect posted a report on the agent with which Opus 5 scored 95.5% on ARC-AGI-3
Prime Agent ( is more than a Harness model. The authors themselves call the project an operating system for long-lived agents. He doesn't make the model smarter, but he lets it work
Opus 5 + higgsfield can produce what a 5-PERSON team produces in a month.
In one sitting. For $20 in credits. one sitting. I didn't stand up. I didn't take a break. I didn't switch tabs to check social. sat down. opened the laptop. closed it 4 hours later. a month of
Quake Live in an afternoon using Opus 5.
Playable right now in the browser, with multiplayer.
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