GPT-6 Astra Clears Portal Alone, at a Cost of $571
A new model reportedly cleared Valve's puzzle classic without human help, and that single playthrough consumed $571.
Symbolic image: a capture bench with a running PC and blinking status lights while abstract corridor shapes appear on the monitors.
Golem reports that the new GPT-6 Astra model finished Valve's classic game Portal on its own, running up $571 along the way.
At a glance
- Reported cost: $571 for the run through Portal, per the Golem headline.
- Model: GPT-6 Astra, described in the report as new.
- Game: Valve's Portal, said to have been completed with no human input.
- Not documented: runtime, number of model calls, test setup, or who ran it.
- Golem files the piece under its ChatGPT and Valve tags.
German tech site Golem.de reports that GPT-6 Astra, which it describes as a new model, completed Valve's puzzle classic Portal on its own, and that the attempt consumed $571.
The claim, stripped to what is stated
Three things are on the record in the headline and teaser: the model is GPT-6 Astra, it finished Portal with no human at the controls, and the run cost $571. The piece carries Golem's ChatGPT and Valve tags. Nothing beyond that is publicly readable.
Where the money goes in an agentic playthrough
An agent that plays a game runs a perception-and-decision loop: read the screen, pick an input, look at what changed. Every turn of that loop is a separate model call with its own charge, so a chamber that takes several attempts multiplies calls rather than minutes. That is the general shape of the cost. The report does not break the $571 down into calls, tokens, or wall-clock time.
What is not established
Who ran the experiment, how long it took, how many calls it needed, whether restarts or saves were permitted, and whether anyone has reproduced it: none of that is documented in what could be read. Those gaps matter for a benchmark-style claim, because a run with generous retries is a very different result from a clean single pass.
A note on sourcing
Only the headline and teaser of the Golem article were accessible; the full text sits behind a consent and subscription wall. Everything above comes from those two elements, and nothing beyond them is asserted here as fact.
FAQ
How much did it cost for AI to play through Portal?
Golem puts the figure at $571 for the run. The accessible part of the article gives no breakdown by model calls, tokens, or elapsed time.
Which AI model finished Portal?
GPT-6 Astra, presented in the report as a new model. Golem tags the story with ChatGPT and Valve.
Did the model really finish Portal without any human help?
The teaser presents it as an unaided run. No verifiable log or third-party reproduction is available to us, so it stands as the source's account.
