GPT-5.6 Sol and Fable 5 test car-building in Scrap Mechanic with an MCP
Angaisb_ · x · 2026-07-23
A model-agent build test inside Scrap Mechanic
The post compares GPT-5.6 Sol (max) and Fable 5 in a Scrap Mechanic car-building task, using an MCP built by Sol.
The author says the cars are not great, but Fable’s version can at least turn left and right. They’re unsure whether the limitation comes from the MCP setup or from the models themselves.
Related event: Rumor: GPT-5.6 and Fable 5 Build Vehicles In-Game(2 posts)→
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