No official size has been confirmed yet, so any number is still a rumor. The most common estimates online cluster around 150–300 GB , with some forum posts speculating much higher and a few unreliable posts claiming extreme figures like 676.7 GB.

What people are saying

  • A Reddit discussion put the base game at around 150 GB on day one, possibly growing later with updates.
  • A gaming article said many forum discussions expect 100–150 GB minimum , with 200 GB+ also seen as plausible.
  • Some viral posts claim 676.7 GB , but those are not confirmed by Rockstar and read more like rumor or placeholder speculation.

Practical expectation

If you want a realistic planning number, 200 GB-ish is a sensible guess for storage prep, with extra headroom if you’re on PC or expect future updates. That is still speculation, not an official requirement.

HTML version

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EstimateHow credible it looks
150 GBCommon forum estimate for a launch-sized install.
200 GB+Often described as a more realistic expectation.
676.7 GBViral claim, but not trustworthy as a confirmed size.
**TL;DR:** expect something in the **150–300 GB** range, and don’t treat any exact number as confirmed yet.