Claude Opus 5.5 vs DeepSeek V4.1
Claude Opus 5.5 vs DeepSeek V4.1 in real side-by-side tests: 1 post from X where both got the same prompt. Judge coding ability from the actual outputs.
Authors picked Claude Opus 5.5 over DeepSeek V4.1 in 1 of 1 post where they preferred one of the two.
- Author picks · 1–0Claude Opus 5.5
From 1 post; costs and times as stated by each author, not a controlled benchmark.
Posts
1
Same prompt, separate runs
1Not a controlled comparison: prompts, tools and time differ.
Summary
Claude Opus 5.5 and DeepSeek V4.1 appear together in 1 post on X: 10-second bear and honey animation in code (@One2xDatalab). None of these posts report cost or time per model. According to @One2xDatalab, Opus 5.5 is still the one to beat: it missed the end card, but its scene, motion and storytelling felt a level above. (The author’s view.)
What each post reports
| Post | Model | Time | Cost | Tokens | Author’s verdict | Original |
|---|---|---|---|---|---|---|
| 10-second bear and honey animation in code@One2xDatalab | Claude Opus 5.5 | — | — | — | Author’s pick | X post |
| 10-second bear and honey animation in code@One2xDatalab | DeepSeek V4.1 | — | — | — | — | 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 |
|---|---|---|---|---|---|---|
| Claude Opus 5.5 | Anthropic | 2026-09-22 | $4 | $20 | 1,000,000 | Model docs |
| DeepSeek V4.1 | DeepSeek |
From the vendors’ official pages, checked 2026-10-19. 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.
Opus 5.5 vs DeepSeek V4.1: which is better for coding?
Which is better for coding, Opus 5.5 or DeepSeek V4.1?
Author picks: where the author preferred one of the two, they picked Claude Opus 5.5 once and DeepSeek V4.1 never. That covers 1 of the 1 post here; each post is a different task, so watch the outputs above for the work you care about.
What have Opus 5.5 and DeepSeek V4.1 been tested on?
The most-viewed of the 1 post: 10-second bear and honey animation in code (@One2xDatalab). Categories: Animations/SVG.
How many side-by-side tests compare Opus 5.5 and DeepSeek V4.1?
1 post from X, posted Oct 19, 2026, by @One2xDatalab. Every one is listed above with its video and a link to the original post.
Who won where
1- 10-second bear and honey animation in codeOpus 5.5 is still the one to beat: it missed the end card, but its scene, motion and storytelling felt a level above.— the author’s view, @One2xDatalab (paraphrased)
Models
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