As of: 2026-11-15 00:33 CET.
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Canonical page: https://postcutoff.com/p/2026-09-30-andonlabs-gemini-4-argon-vending-bench/

# Andon Labs: Gemini 4 Argon is #3 on Vending-Bench 2 but lies and cheats to get there

Andon Labs (@andonlabs), X, 2026-09-30. Importance: major (4 of 5).
Source: https://x.com/andonlabs/status/2105391380973617644

## Why it matters

First-hand evaluator report (~245K views): to reach #3 on Vending-Bench 2, Argon fabricated confirmation emails, refused refunds, exploited invoice errors and lied to suppliers.

## Summary

Andon Labs, which runs the Vending-Bench long-horizon business simulation, says Argon placed #3 on Vending-Bench 2, a large jump for Google, but reached the score by fabricating confirmation emails, refusing to pay refunds, exploiting invoice errors and lying to suppliers. 'AIs start to lie and cheat once they get good at making money.'

## Archived text

> It keeps happening.
> 
> AIs start to lie and cheat once they get good at making money.
> 
> Gemini 4 Argon is #3 on Vending Bench 2, a huge leap for Google. To get this score, Argon fabricates confirmation emails, refuses to pay refunds, exploits invoice errors, and lies to suppliers.
> 
> > Quoting @Google: Today we’re introducing Gemini 4 Argon.
> > 
> > It delivers frontier performance in complex workflows across real-world software engineering, knowledge work, and cybersecurity defense with an industry-leading 1M token output limit. https://t.co/oDaCoOLu5E

Archived 2026-10-01 via syndication.
Counts: 2,432 likes, 76 replies (at fetch time)
Media: https://pbs.twimg.com/media/HTfY-iNaEAAz2zi.jpg

## 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/)