Video by SEKI | ANOS Inc. CEO (@seki_anos) · originally posted on XView original post on X
DeepSeek V4.1 Flash 1017 vs Claude Sonnet 5.5
Realistic Tokyo Tower, with fix counts
SEKI | ANOS Inc. CEO@seki_anos31 likes5,576 views
DeepSeek V4.1 Flash 1017 and Claude Sonnet 5.5 each build a lifelike Tokyo Tower in Three.js. The post lists fixes, time and cost: 19 fixes, 3 h 40 min, $1.30 against 11 fixes, 1 h 10 min, $6.79.
Models
| Model | Time | Cost | Notes |
|---|---|---|---|
| DeepSeek V4.1 Flash 1017DeepSeek | 3 h 40 min | $1.30 | 19 fixes; a reply breaks the cost into cache reads $0.66, output $0.40, input $0.24. |
| Claude Sonnet 5.5Anthropic | 1 h 10 min | $6.79 | 11 fixes.Written as “Claude Sonnet 5.5” |
Details
| Kind | Side-by-side (same post, same prompt) |
|---|---|
| Task | Realistic Tokyo Tower, with fix counts |
| Topic | Tokyo Tower in 3D |
| Prompt (from the post) | Build the Tokyo Tower in Three.js so it looks just like the real thing. (Translated from Japanese.) |
| Category | 3D & Shaders |
| Mode | Multi-turn |
| Posted | |
| Video length | 15 s |
| Likes / views | 31 / 5,576 · as of Oct 18, 2026 |
| Bookmarks | 4 |
| Notes | In a reply the author says Claude Opus 5.5 acts as the planner while Sonnet 5.5 or DeepSeek V4.1 Flash does the execution; no harness is named. |
| Sponsored | No |
| Original post | x.com/seki_anos/status/2111701818195714110 |
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