Google's Ironwood TPU chips, which run its Gemini models. Image: Google

Google's Gemini 4 Argon has only been in the Gemini app for a couple of days, and paying subscribers are already saying they can barely use it. In several busy threads on Reddit's r/GeminiAI, users say a handful of Argon prompts can eat a big chunk of their usage allowance.

In a thread titled "Gemini 4 usage limit is a joke", u/Username22458 says one straightforward question used 5% of their session allowance on the Pro plan, while the same prompt on Anthropic's Claude Opus used less than 1%. u/DottorInkubo says rewriting a single email took 18%, and u/Relative_Rope4234 says one simple question on Argon's High thinking setting used 16%.

In another thread, u/MorgrainX, also on Pro, says asking Argon (High) to explain a topic burned 48% of their limit, after it wrote at length and added graphics they hadn't asked for. They and others want Gemini to show how much a prompt will cost before it runs.

A third post sums up the mood in its title: "Google, just skip argon; give us Gemini 4 flash." Its author, u/Gohab2001, says asking for a simple model comparison on a sibling's AI Pro account used 8% of the quota. They want a fast Gemini 4 Flash "with actually usable limits."

I'm in the same boat, too. I've hit Gemini 4's usage limits myself.

Not everyone is as upset. u/Amknss says the five-hour cap stings but the weekly limit "seems fair," and u/Aggravating_Band_353, who first complained, later said Argon fixed a coding problem in one prompt that had taken dozens before. These are individual, unverified reports.

So what has Google said? Its limits help page says Gemini app limits are "compute-based," weighing how complex your prompt is, which model and features you use, and how long the chat is. The allowance refreshes every five hours until you hit a weekly cap. AI Pro gets 4x the free limits, and Ultra gets 5x or 20x Pro's. Google doesn't say how many Argon prompts any plan gets.

There's a mismatch here. That same page rates a "simple conversation in chat" as a "very low" usage cost, which isn't what these Argon users describe. Google's models help page does warn that "more advanced models and higher thinking levels require more of your usage," and many of the worst reports involve the High setting.

Why is Argon so hungry? Google pitches it as a model that "works longer and harder". That means lots of hidden thinking before each answer. On the API, Google bills that thinking as output, as we noted in our Argon pricing piece. Google's Logan Kilpatrick put it bluntly: Argon is "as 'big model smell' as it comes," which limits how widely Google can serve it.

@noctus91 Argon is as "big model smell" as it comes, so limited on our ability to serve it widely, but working on versions of Gemini 4 which will be available to billions of people : )

— Logan Kilpatrick (@OfficialLoganK) October 13, 2026

In the same post, he said Google is working on versions of Gemini 4 "available to billions of people," as we reported. That's the closest thing to an answer for the "give us Flash" crowd, though Google hasn't named a model or a date.

Until then, there are a few ways to stretch your allowance. Google says the thinking level defaults to Low unless you change it, so save High for genuinely hard tasks. Use Flash for quick questions and start a new chat for each new topic. If a paid plan runs out, your chat carries on with Flash-Lite.

Argon is also in AI Mode in Search for Pro and Ultra subscribers. u/Gaiden206 says using it there doesn't touch the Gemini app quota, though Google hasn't confirmed that. Developers who need more can pay per token through the Gemini API instead.