Comment by mattlondon

5 hours ago

Sooo... Is Carbon 4.1? Or is it different to Argon 4 somehow? Different model? Or point update?

Is Argon "pro" and Carbon "ultra"?

Is Argon obsolete now? Does Carbon replace it or live alongside of it?

Very confusing naming!

1. "Building on Gemini 4 Argon". 2. Same price. 3. Relatively short time between releases.

Makes me think it's further post-training of the same model.

For Gemini that is a foundation model version 3.1 3.5 4 etc. and there is checkpoint on evolution of those specific models. Gemini 4 had Argon - B<> - Carbon and who knows they might have Dysporsium or Europium.

Or you might get Gemini 5 Arizona.

Carbon is like Opus

Argon is like Sonnet

  • Both seem to have the same pricing: $2 in / $10 out initially, rising to $4 in / $20 out after the introductory period. That made me wonder whether Carbon might be Argon with additional RL training. What’s the Opus/Sonnet comparison based on?

  • I don't think that's right. Carbon and Argon have the same price.

    I suspect they're using a new naming convention because they had previous contractual obligations tied to the "pro" and "flash" naming, and by switching to a new naming schema they avoid those commitments.

  • So Argon was 4.0 Flash effectively? Interesting that there is such a small gap between their new Pro and Flash tiers