Long-Horizon Agents Backfiring? Dev Slams Lack of Profitable Use Cases

MarcJSchmidt · x · 2026-08-10

Developer MarcJSchmidt retweeted a thread arguing that the industry's obsession with "long-horizon agents" in model training is finally backfiring. He claims these fully autonomous agents fundamentally don't work, challenging anyone to show a profitable business built entirely by one.

He notes that the only impressive things they’ve built so far are 3D game prototypes cloning existing titles like Call of Duty. This is only possible because human teams already figured out the requirements, controls, and mechanics years ago, and that knowledge was absorbed into the model's weights—meaning the agent is just regurgitating known patterns.

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