Matchup
Claude Opus 5 vs DeepSeek V4.1 Flash 1017
2 posts363 likes48K views
Claude Opus 5 vs DeepSeek V4.1 Flash 1017 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
3Not a controlled comparison: prompts, tools and time differ.
Summary
Claude Opus 5 and DeepSeek V4.1 Flash 1017 appear together in 2 posts on X: voxel pagoda island with a dragon (@badboyfoxy) and gummy bear product page (@Haleeeemahh). In @badboyfoxy's voxel pagoda island with a dragon, DeepSeek V4.1 Flash 1017 was cheaper ($0.42 vs $10.00) and faster (52 min vs 1 h 10 min), as reported in the post. According to @badboyfoxy, Opus 5 won this round; DeepSeek is very slow but still delivers and is extremely cheap. (The author’s view.)
What each post reports
| Post | Model | Time | Cost | Tokens | Author’s verdict | Original |
|---|---|---|---|---|---|---|
| Voxel pagoda island with a dragon@badboyfoxy | DeepSeek V4.1 Flash 1017 | 52 min | $0.42 | — | — | X post |
| Voxel pagoda island with a dragon@badboyfoxy | Claude Opus 5 | 1 h 10 min | $10.00 | — | Author’s pick | X post |
| Gummy bear product page@Haleeeemahh | DeepSeek V4.1 Flash 1017 | — | — | — | — | X post |
| Gummy bear product page@Haleeeemahh | Claude Opus 5 | — | — | — | — | X post |
Only numbers stated in each post. “—” means the post doesn’t say.
Who won where
1- Voxel pagoda island with a dragonOpus 5 won this round; DeepSeek is very slow but still delivers and is extremely cheap.— the author’s view, @badboyfoxy (paraphrased)
Models
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