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

A poster says Gemini 3.7 Flash and 3.6 Flash are leaving soon and that they are waiting for Gemini 4 Argon to run their own tests.

A post says Gemini 4 Argon has reached the top of Arena's Text Arena and briefly explains how Arena ranks models.

A Chinese leak cites the official Python SDK merging Gemini 4 continuation-token auto-continuation and some US Ultra users seeing the model in-app, though it is not yet globally available.

Gemini 4 Argon was announced on September 30, but as of October 8 there is still no clear date for general users, and Ultra starts at $99.99/month.

A leak says Gemini 4 Argon is starting to roll out to Ultra subscribers in the US, with a nationwide expansion in a day or two; the claim is unconfirmed by Google.

A joke post contrasts Claude shipping Opus, Sonnet and Haiku 5.5 and Codex only resetting, while Google answers every time with a promise that Gemini 4 Argon is coming.

A user says Google has wired Antigravity with an argon_model_selector and Ultra upgrade prompts, with Fairwind first, then Ultra and paid API.

An account says Gemini 4 Argon is expected to launch today, arguing it is now or never and naming Lyra as a trustworthy party for a Gemini launch.

A leak says Google is adding an Auto mode to Antigravity that lets the agent run more steps with fewer permission prompts, possibly shipping alongside Gemini 4 Argon.

The poster asks whether Gemini 4 Argon released without anyone discussing it, or whether Google canceled it like 3.5 Pro because it underperformed.

TestingCatalog found an argon_model_selector reference in Antigravity URLs, alongside Google AI Ultra upgrade labels, a Concierge voice agent and Auto mode testing.

A leak claims Gemini 4 Argon is already live in Google Cloud, priced at $4/$20, with Flex and Batch at half price and cached input as low as $0.10 per million tokens.