Matchup

Claude Fable 5.1 vs Claude Opus 5.5

1 post24 likes1.6K views

Claude Fable 5.1 vs Claude Opus 5.5 in real side-by-side tests: 1 post from X where both got the same prompt; 1 post reports cost or time. Judge coding ability from the actual outputs.

Posts

1

Same prompt, separate runs

1

Not a controlled comparison: prompts, tools and time differ.

Summary

Claude Fable 5.1 and Claude Opus 5.5 appear together in 1 post on X: floating island in Blender, Opus vs Fable 5.1 (@MrTacticalX). In @MrTacticalX's floating island in Blender, Opus vs Fable 5.1, Claude Opus 5.5 was cheaper ($9.72 vs $29.00) and faster (44 min vs 56 min), as reported in the post. According to @MrTacticalX, fable costs 3x more and opus still did it better. (The author’s view.)

What each post reports

Claude Fable 5.1 vs Claude Opus 5.5: cost, time and tokens as stated in each post
PostModelTimeCostTokensAuthor’s verdictOriginal
Floating island in Blender, Opus vs Fable 5.1@MrTacticalXClaude Opus 5.544 min$9.72—Author’s pickX post
Floating island in Blender, Opus vs Fable 5.1@MrTacticalXClaude Fable 5.156 min$29.00——X post

Only numbers stated in each post. “—” means the post doesn’t say.

Who won where

1

Models

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