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

Asked to extract text from legal correspondence, Argon produced a dated quote with four points praising its own precision, then admitted it invented everything including the date; it also denied the iPhone 18 Pro Max exists.

Both models built an interactive harbor scene from one prompt; Opus 5.5 looked more detailed, while Gemini 4 Argon ran the whole thing for $0.46, raising whether the polish is worth ~36x the price.

A prediction-market screenshot shows Google leading at 71% versus Anthropic's 28% after Gemini 4 Argon's release, with Anthropic's odds resting on an unrumored new Claude.

A Japanese post lists ten on-the-job uses for Gemini 4 Argon, covering inputs, sample prompts and human checkpoints, with demos for meeting notes, proposals and document comparison.

A report says Gemini 4 Argon helped extend a mathematical solution concerning magnetic fields in fusion reactors, with a link to the source.

The post claims Google trained Argon to find, validate and patch vulnerabilities, and shares a read-only audit workflow plus the $1/$5 batch pricing that doubles on Dec 1.

A user shows a single HTML file made with Gemini 4 Argon that renders a Three.js fiddler crab animation with moving camera angles, wet sand and lighting.

A video post says Gemini Argon got a task done that is bad news for Opus 5.5, though the post does not specify what the task was.

A Korean user asked Gemini 4 Argon to recreate the Ahu Tongariki moai site on Easter Island using only Three.js, and the statues, terrain, ocean, lighting and camera work exceeded expectations.

A user shares a screenshot of Gemini Argon giving an unusually harsh, blunt response, drawing agreement in the replies.

A user notes Gemini 4 Argon costs $2 input / $10 output per million tokens, saying Opus 5.5 costs more but they still use it out of fear of switching mid-project.

A roundup of expected late-October model launches includes Gemini 4 Carbon as Google's next step over Argon, plus a possible new Gemini Flash model.