Gemini 4 Carbon vs GPT-6 Astra
aka Carbon vs Astra
- Author picksGemini 4 Carbon1–0
As stated in each post, not a controlled benchmark.
Posts
3
Same prompt, separate runs
2Not a controlled comparison: prompts, tools and time differ.
About this matchup
Gemini 4 Carbon vs GPT-6 Astra in real side-by-side tests: 3 posts from X where both got the same prompt. Judge coding ability from the actual outputs.
Gemini 4 Carbon vs GPT-6 Astra: which is better for coding?
Which is better for coding, Gemini 4 Carbon or GPT-6 Astra?
Author picks: where the author preferred one of the two, they picked Gemini 4 Carbon once and GPT-6 Astra never. That covers 1 of the 3 posts here; each post is a different task, so watch the outputs above for the work you care about.
What have Gemini 4 Carbon and GPT-6 Astra been tested on?
The most-viewed of the 3 posts: cyclist at sunset animation, three models (@AI_Screening), swimmer in a pool, Carbon vs Opus vs Astra (@RealFedeURU), pixel-art running cheetah at 640x360 (@duke_mv). Categories: Animations/SVG, 3D & Shaders, Simulations.
How many side-by-side tests compare Gemini 4 Carbon and GPT-6 Astra?
3 posts from X, posted between Oct 21, 2026 and Oct 23, 2026, by 3 accounts (@duke_mv, @RealFedeURU, @AI_Screening). Every one is listed above with its video and a link to its post on X.
Summary
Gemini 4 Carbon and GPT-6 Astra appear together in 3 posts on X: pixel-art running cheetah at 640x360 (@duke_mv), swimmer in a pool, Carbon vs Opus vs Astra (@RealFedeURU) and cyclist at sunset animation, three models (@AI_Screening). All are part of larger lineups with other models. None of these posts report cost or time per model.
What each post reports
| Post | Model | Time | Cost | Tokens | Author’s verdict | Post |
|---|---|---|---|---|---|---|
| Pixel-art running cheetah at 640x360@duke_mv | Gemini 4 Carbon | — | — | — | Author’s pick | X post |
| Pixel-art running cheetah at 640x360@duke_mv | GPT-6 Astra | — | — | — | — | X post |
| Swimmer in a pool, Carbon vs Opus vs Astra@RealFedeURU | Gemini 4 Carbon | — | — | — | — | X post |
| Swimmer in a pool, Carbon vs Opus vs Astra@RealFedeURU | GPT-6 Astra | — | — | — | — | X post |
| Cyclist at sunset animation, three models@AI_Screening | Gemini 4 Carbon | — | — | — | — | X post |
| Cyclist at sunset animation, three models@AI_Screening | GPT-6 Astra | — | — | — | Carbon is already better than Argon, and GPT-6 Astra is starting to look outdated. | X post |
Only numbers stated in each post. “—” means the post doesn’t say.
Quick facts
| Model | Vendor | Released | Input $/1M tokens | Output $/1M tokens | Context (tokens) | Official links |
|---|---|---|---|---|---|---|
| Gemini 4 Carbon | 2026-10-28 | Announcement · Announcement post | ||||
| GPT-6 Astra | OpenAI | 2026-09-03 | $10 | $50 | 1,050,000 | Model docs |
From the vendors’ official pages, checked 2026-10-29. Standard API list prices; each value links its source and a blank cell could not be verified. The archive’s own numbers above are what each post states.
Who won where
2- Pixel-art running cheetah at 640x360The poster finds Gemini 4 Carbon’s output significantly better than the other two.— the author’s view, @duke_mv (paraphrased)
- Cyclist at sunset animation, three modelsCarbon is already better than Argon, and GPT-6 Astra is starting to look outdated.— the author’s view, @AI_Screening (paraphrased)
Prompts shown in the posts
640x360 pixel art of cheetah running — @duke_mv
Models
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