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

6

Not 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

DeepSeek V4.1 Flash 1017 vs GPT-6 Astra: cost, time and tokens as stated in each post
PostModelTimeCostTokensOriginal
Tesla Roadster 3D viewer, 4 models@Che0danDeepSeek V4.1 Flash 1017———X post
Tesla Roadster 3D viewer, 4 models@Che0danGPT-6 Astra———X post
Living koi pond in Three.js, highest reasoning@notjaziiGPT-6 Astra20 min$7.00—X post
Living koi pond in Three.js, highest reasoning@notjaziiDeepSeek V4.1 Flash 10171 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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