Matchup
DeepSeek V4.1 Flash 1017 vs GPT-6 Astra
2 posts620 likes79.7K views
DeepSeek V4.1 Flash 1017 vs GPT-6 Astra in real side-by-side tests: 2 posts from X where both got the same prompt; 1 post reports cost or time. Judge coding ability from the actual outputs.
Posts
2
Same prompt, separate runs
6Not a controlled comparison: prompts, tools and time differ.
Summary
DeepSeek V4.1 Flash 1017 and GPT-6 Astra appear together in 2 posts on X: Tesla Roadster 3D viewer, 4 models (@Che0dan) and living koi pond in Three.js, highest reasoning (@notjazii). 1 of them are part of larger lineups with other models. In @notjazii's living koi pond in Three.js, highest reasoning, DeepSeek V4.1 Flash 1017 was cheaper ($0.90 vs $7.00) and GPT-6 Astra was faster (20 min vs 1 h 40 min), as reported in the post.
What each post reports
| Post | Model | Time | Cost | Tokens | Original |
|---|---|---|---|---|---|
| Tesla Roadster 3D viewer, 4 models@Che0dan | DeepSeek V4.1 Flash 1017 | — | — | — | X post |
| Tesla Roadster 3D viewer, 4 models@Che0dan | GPT-6 Astra | — | — | — | X post |
| Living koi pond in Three.js, highest reasoning@notjazii | GPT-6 Astra | 20 min | $7.00 | — | X post |
| Living koi pond in Three.js, highest reasoning@notjazii | DeepSeek V4.1 Flash 1017 | 1 h 40 min | $0.90 | — | X post |
Only numbers stated in each post. “—” means the post doesn’t say.
Prompts shown in the posts
Create a beautiful, busy, living koi pond using Three.js in a single HTML file. Include a waterfall, rocks, plants, and multiple koi fish with different colors and patterns. Make the scene feel alive through continuous fish movement, flowing water, and animated environmental details. Add a “Feed the koi” button. When clicked, food should appear on the water, and the fish should visibly swim toward it and eat it—not simply continue their normal swimming animation. Allow the camera to orbit and zoom so I can explore the pond. Make the scene visually polished, with convincing water, lighting, and depth. Deliver the complete working HTML file. — @notjazii
Models
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