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# “Gemini 4 Pro checkpoints have finally started appearing internally a few days ago.”

Lentils (@Lentils80), X, 2026-09-14.
Source: https://x.com/Lentils80/status/2099601296516960580

## Archived text

> Gemini 4 Pro checkpoints have finally started appearing internally a few days ago.
> 
> This is the first ever output from the model, internally codenamed "argon". It took 2.4 minutes on High thinking effort.
> 
> It has a 256k token "output limit", compared to 64k in previous Gemini models. I also heard it will ship with a 2M context window, tho it's still not decided if they'll do it.

Archived 2026-09-30 via fxtwitter (unofficial).
Counts: 387,066 views, 1,663 likes, 47 reposts, 108 replies (at fetch time)
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## Cited in

- 2026-09-30: [Google announces Gemini 4 Argon, its new frontier model, first released only to cyber defenders via the Fairwind Program](https://postcutoff.com/e/2026-09-30-gemini-4-argon/)