Google has not publicly confirmed an exact parameter count for Gemini Pro , so the honest answer is that it’s not officially known.

What’s known

  • Public discussion and speculation have put earlier Gemini Pro-era models in the rough tens of billions range, but that is not an official Google figure.
  • For newer Gemini generations, parameter counts are still not publicly disclosed in a verifiable way, and online estimates vary widely.

Practical takeaway

If you need a precise number, the safest answer is: Google hasn’t disclosed it.

If you want, I can also give you a short breakdown of how Gemini Pro compares with Gemini Flash and Gemini Ultra in terms of what is publicly known.