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

The post claims Gemini 3.8 Flash is currently routing to Gemini 4 Argon, speculating Google is quietly testing Argon through an existing model before launch.

A user says Gemini 4 Argon is everywhere on their timeline lately, with a screenshot showing how much it appears.

The account auricxofficial posts an image of the Gemini 4 Argon interface, possibly a rollout or access screenshot.

A user jokes that Carbon rumors are already circulating before Argon has shipped and asks Google when the models will actually be released.

TimJayas mocks recent AI leaks in which Gemini 3.1 Pro routes to 3.8 Flash and 3.8 Flash routes to Argon in Antigravity, and calls for Gemini 4 Argon to just be released.

NovaXCode posts that Gemini 4's Argon and Carbon models outperform their peers and declares "Google is BACK", without citing specific data.

A short post says that if Gemini 4 really surpasses GPT-6 Astra, it would mark a new low for OpenAI, though the author is unsure it will happen.

A poster remarks that the Gemini 4 Argon comeback is striking enough to warrant a closer study.

A user finds that Gemini 3.1 Pro in Antigravity is calling the new model ID gemini-3.8-flash-exp-a, with thinking traces different from the current 3.8 Flash, and stresses it is not Argon.

After testing an entry point with a three.js pirate ship, the user says the output quality is far below the Argon samples they have seen, so it likely isn't routing to Gemini 4 Argon.

A post with a video captioned only "Gemini 4 Argon !!" appears to show footage of the new model.

The author argues Opus 5.5 excels at interactive terminal loops while Gemini 4 Argon is built for single-pass whole-repo generation with a 1M-token output window, so a simple file rename won't carry the workflow over.