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Google CEO: Gemini 3.5 Pro never shipped because Argon would have made it obsolete

9 insights: why Google's capex is "not just hope" after a negative free-cash-flow summer, why Demis Hassabis stepped back at DeepMind as Jeff Dean left, and Waymo's scale

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Scuttlebutt
Oct 22, 2026
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Sources Podcast · Oct 21, 2026 · 59m · 50m saved

With Sundar Pichai, CEO of Google and Alphabet

Google CEO: Gemini 3.5 Pro never shipped because Argon would have made it obsolete

Google went free-cash-flow negative over the summer for the first time since its IPO. Sundar Pichai, CEO of Google and Alphabet, told Alex Heath on the Sources Podcast that the spending is backed by signed contracts, and that Google still cannot get enough compute.

Much of the market has been asking whether AI infrastructure is being overbuilt. Sundar's answer separates the two questions: the wider industry may see volatility, but Google itself is short of capacity and using everything it has.

"We are super constrained. And more importantly, we're using it for real today in practical value-deriving ways." — Sundar Pichai

Sundar runs the company that trains Gemini, operates Google Cloud and owns Waymo and Wing, so the capex decisions he defends here are his own, made two years before anyone can judge them.

The full interview is covered here so you can skip it. 59 minutes of audio, 9 minutes of reading.

Here are the 9 insights that matter.


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Key Takeaways

  • Gemini 4 Argon processed almost 25 trillion tokens in its first 72 hours, about 3x Gemini 3.0

  • Google scrapped Gemini 3.5 Pro and folded its learnings into Argon's post-training

  • Google DeepMind's leadership change is about scale, not turmoil, in Sundar's telling

    • Demis Hassabis moves to chief scientist; Koray Kavukcuoglu runs it day to day

  • Google's capex is backed by durable contracts with committed revenue, not hope

  • Sundar expects volatility in AI infrastructure financing but says Google is "super constrained" on compute

  • Waymo has crossed half a million paid rides a week

  • Quantum computing should have practical commercial uses within five years, Sundar says

1. Argon's Launch Ran Hot

Sundar described a strong reception for the wider release of Gemini 4 Argon, measured in tokens processed.

Argon's first three days ran at about three times Gemini 3.0's pace

"In the first 72 hours since Argon launched, we've had about almost 25 trillion tokens, which is about 3x what 3.0 had in the first 72 hours." — Sundar Pichai

Google is "definitely" capacity constrained as a result. Access is gated for now to the API and to the Pro and Ultra tiers of the Gemini app, later extended to the Pro tier in the Antigravity app.

Distilled versions of Argon are how Google plans to widen access

"We can distill off these models and get versions which are nearly as capable but much more efficient." — Sundar Pichai

2. A Faster Release Cadence

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