Gemini 4 Pro / Flash: benchmarks, hands-on tests and leaks

The author built a mech-pelican cycling page with Terra, then unlocked a $1-spend blind box and won 1M Gemini 4 Argon tokens.

Gemini 4 Flash is reportedly being tested internally under the codename Hydrogen, fitting the Argon → Carbon → Hydrogen naming sequence.

A user guesses Gemini 4 Flash, codenamed Hydrogen, could ship around Oct 31 after two more days of testing, and wonders if it can beat a GPT-6.1 Terra-type model.

After Gemini 4 Argon and Gemini 4 Carbon, rumors of a Gemini 4 Flash variant surface, with users joking that Google is moving too fast to keep up.

A joke thread noting Anthropic names models after literature, OpenAI after astronomy, Google after chemical elements such as Argon and Hydrogen, and DeepSeek after dates.

Citing another user, the post says Gemini 4 Flash reaches 300 tokens per second on LMArena and asks how many would switch if quality holds.

The poster argues that Gemini 4 Argon alone won't make Google's Antigravity mainstream among developers and asks for agreement.

A developer jokes that Gemini 4 Argon fumbled and shifts hype to the next Gemini 4 model, codenamed Carbon.

After updating Antigravity, users can select Gemini 4 Argon High marked "New" in the model list; those who don't see it should update the IDE.

A creator recreated a Seedance 2.5 fantasy baby-dragon video with Gemini Argon as a side-by-side video generation demo.

A leak says Gemini 4 Flash hits close to 300 tokens per second; if it matches Argon-level performance at Flash pricing it would be hard to beat, and the poster plans to test it on Arena.

According to Lyra, the fast Gemini 4 on Arena is the Flash variant at around 300 tps; it isn't released yet but may hit Arena soon.