SMRTR TechSep 7, 2026NotebookCheck

GPT-6 Astra AI model beats Valve's Portal game solo in 24 hours

SMRTR summary

OpenAI's GPT-6 Astra became the first general-purpose AI to beat Valve's Portal solo, navigating the full 3D puzzle game without walkthroughs or scripted help. An AI enthusiast ran the model using about 3,300 tool calls over roughly 24 hours, costing under $600 via API. Competitors like Claude, Gemini, and DeepSeek focus elsewhere, leaving GPT-6 Astra alone in spatial reasoning inside physics-driven game environments.

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