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

The author ran SVG generation on the new Gemini 4 Pro checkpoint and, after nearly 50 attempts, got a BMW M4 CS side view in Sao Paulo Yellow and Isle of Man Green.

A user says Gemini 4 Pro produced a luxury-style fly image in under 7 minutes from a single prompt, with ruby eyes, metallic wing veins and tiny gears under smoked glass.

A user says they have started to dislike the output formatting of GPT and Claude, and hopes Gemini 4 Pro will be the right choice.

The same prompt was given to GPT-6 Astra and Gemini 4 to each build a dragon flying game with a full flight HUD, wing stamina and altitude tracking, to see which one added more detail.

A new Gemini 4 Pro checkpoint has appeared in the Arena, and the author says Google keeps pushing iterations with visible progress between versions.

Arena quietly added a new Gemini 4 Pro checkpoint with extended thinking; most testers find it worse than the first checkpoint, some call it an upgrade, and the author advises judging multi-run consistency rather than single generations.

xoaanya posts a meme mocking Gemini 4 Pro's long delay, captioned "Gemini 4 Pro benchmarks after a decade of waiting."

VaibhavLab speculates that Gemini 4 Pro is delayed because Google is training internally on the original full architecture on its own TPUs.

HarshithLucky3 says they tried the new Gemini 4 Pro checkpoint 20 times with no output at all and will keep testing.

A user says a new Gemini 4 Pro checkpoint showed up just days after the previous one, and after trying for hours they still haven't hit it but will share outputs once they do.

A new Gemini 4 Pro checkpoint has surfaced on Arena under the name gemini-3.8-flash, the third such placeholder model in recent days.

A new Gemini 4 Pro checkpoint has appeared on Arena, with leaks saying it performs worse than the previous one; the poster plans to test it and share results.