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Tom's Hardware September 7, 2026 By Mark Tyson neutral

OpenAI’s GPT-6 Astra model autonomously completes Portal in 24 hours — feat cost just $571 in tokens

OpenAIAI / LLM
An AI enthusiast has conducted an experiment where OpenAI's new GPT-6 Astra played through the entirety of Valve's Portal 3D puzzler game on its own.
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