Video by Alex Veremeyenko (@alex_verem) · originally posted on XView original post on X
Claude Fable 5 vs Claude Opus 4.8
Solar system from raw physics
33 likes7,648 views
Claude Fable 5 and Claude Opus 4.8 on the same one-shot test: simulate the solar system from Newtonian gravity, with no hardcoded positions, plus an eclipse predictor. Both succeeded; Fable finished first.
Models
| Model | Notes |
|---|---|
| Claude Fable 5Anthropic | Written as “Claude Fable 5” |
| Claude Opus 4.8Anthropic | Written as “Opus 4.8” |
Details
| Kind | Side-by-side (same post, same prompt) |
|---|---|
| Task | Solar system from raw physics |
| Author’s verdict | Both models pulled it off and Fable got there first. — @alex_verem’s view (paraphrased) |
| Topic | Three.js solar system |
| Category | 3D & Shaders |
| Mode | One shot |
| Posted | |
| Video length | 58.3 s |
| Likes / views | 33 / 7,648 · as of Oct 18, 2026 |
| Bookmarks | 24 |
| Sponsored | No |
| Original post | x.com/alex_verem/status/2065086634010546668 |
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