As of: 2026-10-30 13:42 CET.
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Canonical page: https://postcutoff.com/p/2026-10-28-elonmusk-gemini-4-carbon-impressive/

# Elon Musk on Gemini 4 Carbon: 'Impressive'

Elon Musk (@elonmusk), X, 2026-10-28.
Source: https://x.com/elonmusk/status/2115503730368061688

## Why it matters

A one-word endorsement of a rival lab's model by xAI's owner, quote-posting Pichai's launch post; with 3.28M views it reached far more people than Pichai's own launch post (~718k).

## Summary

Musk quote-posted Sundar Pichai's Gemini 4 Carbon announcement (Carbon #1 on Artificial Analysis Index v5 at 59) with one word.
The Times of India and others cited it the next day.

## Archived text

> > Impressive
>
> Quoting @sundarpichai: "I did say we'd be releasing our models periodically...introducing Gemini 4 Carbon, our next frontier model. Following Argon's release just two weeks ago, Carbon shows the pace at which we're pushing the frontier, it ranks #1 on the recently updated v5.0 of @ArtificialAnlys Intelligence Index at 59."

Archived 2026-10-29 via fxtwitter (unofficial).
Counts: 3,281,406 views, 27,047 likes, 1,431 reposts (at fetch time, 2026-10-29)

## Cited in

- 2026-10-28: [Google announces Gemini 4 Carbon, #1 on the Artificial Analysis Intelligence Index v5 (59), two weeks after Argon; first only for Fairwind cyber defenders](https://postcutoff.com/e/2026-10-28-gemini-4-carbon/)

## People in this post

- [Sundar Pichai](https://postcutoff.com/person/sundar-pichai/), CEO, Google and Alphabet