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Gemini 4 Carbon is now available

(blog.google)

Just checked my Gemini app, still only have 3.1 Pro, 3.6 Flash and 3.6 Thinking on Pro. Looks like it's Ultra only.

They've been so slow to update their top models and roll them out that despite subscribing to the Gemini Pro plan, I use it so rarely that this is my last month. That and their product offering was so confusing I basically gave up.

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My Google Workspace Gemini (with "AI Expanded Access") has 3.6 Flash, 3.8 Thinking, 4 Carbon.

My personal "AI Pro" Gemini has 3.5 Flash-Lite, 3.8 Flash, 3.1 Pro, 4 Argon.

Pretty inconsistent.

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I wonder why my consumer Gemini app has Argon and 3.8 flash with a pro plan but so many people here don't have that.

Is the issue that consumers get it sooner or is the roll out random or locked to some other factor?

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In one case I had to upgrade my Antigravity GUI to see new models, I guess because of an API change.

At the same time, the CLI saw the new models without any change. Possibly that was just because my CLI install was newer than the GUI one.

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I pay for Ultra and have been using Argon for a couple weeks. I just checked in both Agy and Gemini and Carbon is there for me now, too. I'll try it, but Argon is itself already so slow that I'm not sure Carbon will make sense for most activities.
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Is it 100$ a month for the minimum plan that has access
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Yes.

> It is also rolling out to all Google AI Ultra subscribers

However for what its worth the $20 plan got Argon like a day or so later.

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[dead]
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A nice nod to simonw in one of the highlight videos;

https://www.youtube.com/watch?v=dNbkThtNzS8

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Available through the API
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That was faster than the previous announcement -> release cycles, right?

What's the recommended coding harness I should be using to test it out? (Recommended by folks here, not by Google...)

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> Using Google Antigravity’s /swarm feature, Carbon built an open-world 3D game where you explore Google’s Mountain View campus as a pelican riding a GBike

pelicanmaxxing is here.

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Still don't see it!
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[flagged]
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Maybe add (2026)?
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