OpenAI’s GPT-6 Astra model autonomously completes Portal in 24 hours — feat cost just $571 in tokens
CozyBlaze's experiment saw OpenAI's GPT-6 Astra finish all of Portal autonomously through MCP and a modified SourcePauseTool, with the game paused while the model planned moves. Edited highlights run about two hours; full VODs span roughly 24 hours. The run cost $571 in tokens, covered by a Codex Pro subscription, and is not offered as a formal benchmark.
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