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

A user asked Gemini 4 Argon to build a 3D city that feels like walking the streets filming with an iPhone in hand, called the result amazing, and linked a subscription store.

Third-party channel OpenCode Go is running a limited 2x usage promo through November 30, claiming $10 gets roughly $60 worth of Gemini 4 Argon Contributor access with a 1M context window.

A user shares a way to try Gemini 4 Argon for free: sign in to v0.app with a Google account to get monthly free credits, with no payment or credit card required.

LiveKit says Gemini 4 Argon can be added to a voice agent with one line of code, with a test call to hear the result and a docs link.

The author painted Cezanne, Hopper and Friedrich-style works with Claude Opus 5.5 and is asking for Gemini 4 Argon API credits to run the same test.

A post says Gemini 4 Argon costs about one fifth of the most expensive models, at $1.99 per task on the Intelligence Index versus more than that for Grok 4.7 and Muse Wonder.

Given the same prompt to build Cappadocia as a walkable 3D world, the post compares Google's Argon on the left with Opus 5.5 on the right.

At default reasoning effort, Gemini 4 Argon scores 52.8% on CursorBench, reportedly on par with Opus 5.5 at $2 per million input tokens and $10 per million output tokens, with developers seen as the biggest winners.

The open-source agent framework's major update adds Gemini 4 Argon, Opus 5.5 and GPT-6 support, one-click local models, connectors and a guided first-run setup.

One poster says few people used Gemini before, Gemini 4 Argon is bringing them back, and only now are Gemini's long-poor content guardrails being re-examined, to widespread shock.

A Google team member shares a set of guides for building with Gemini 4 Argon, covering a developer guide, a what's-new and migration checklist, 3D games and long decode.

After a day with Gemini 4 Argon, a user says its biggest value is native YouTube support, distilling long tutorials for ChatGPT to execute, and pairs well with a hand-drawn narration video skill.