Rockstar has never said how long Grand Theft Auto VI: An Extended Look will run, which is why a Netflix listing that briefly appeared to answer the question got so much attention. Netflix Portugal's page for the August 27 premiere reportedly showed three separate episode entries with runtimes of 23 minutes 37 seconds, 24 minutes 41 seconds and 18 minutes 29 seconds. That adds up to 66 minutes and 47 seconds, roughly six times the length of Trailer 2. Dexerto covered it on August 13 and Notebookcheck on August 14.
The reasons to hold this loosely are worth stating plainly. The runtimes came from a screenshot posted by a Reddit user whose account has since been deleted, taking the screenshot with it, so the original evidence is no longer there to check. Netflix's page carries no episode count or runtime now. Rockstar, Netflix and Take-Two have all said nothing about it. Streaming pages routinely carry placeholder metadata before a premiere, and three placeholder rows with plausible-looking durations is exactly the kind of thing that shows up and gets pulled without meaning anything.
There is also a signal pointing the other way. In an interview with IGN written up on August 10, Strauss Zelnick described the August 27 video as an extended trailer rather than a series, and talked about it in the singular throughout. TalkEsport quoted him saying "Well, as you'd imagine, I'm only going to say great things about Netflix. If you're not a Netflix subscriber, you definitely should be one," and "as for the trailer itself, it's coming soon enough that I'll let you arrive at your own conclusion. I'm sure you're going to watch it because everyone is." A CEO ten days out from a three-part series would have little reason to keep calling it a trailer.
The two readings are not impossible to reconcile. Zelnick has separately said the Netflix premiere is one of the hors d'oeuvres with more courses to follow, so a video split into chapters, or a first part with the rest arriving later, would fit both what he has said and what the listing showed. What is actually confirmed has not moved: the premiere is August 27 at 3 PM ET on Netflix, and the same material reaches Rockstar's YouTube channel and the official GTA VI site at 9 PM ET that evening.