@FinanceYF5: Same task to 4 models: Fable 5 sweeps, but costs 6x more than Opus 4.8. Task: 3 HTML5 physics scenes – broken bridge derailment, canyon collision, monster truck. Fable 5: $3.12, A+, no clipping. GPT 5.5: $1.14, closest to Fable. Opus…

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Summary

Compares the performance and cost of four AI models (Fable 5, GPT 5.5, Opus 4.8, GLM 5.2) on three HTML5 physics scene tasks. Fable 5 delivers the best quality but costs nearly 6x more than Opus; quality and price are not yet both attainable.

Same task to 4 models: Fable 5 sweeps, but costs 6x more than Opus 4.8 Task: 3 HTML5 physics scenes – broken bridge derailment, canyon collision, monster truck Fable 5: $3.12, A+, no clipping GPT 5.5: $1.14, closest to Fable Opus 4.8: $0.56, mediocre results GLM 5.2: $0.08, cheapest, didn't win a single round Quality and price can't both be achieved yet. What would you choose? https://t.co/kljY7cgDB7
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Cached at: 07/02/26, 08:18 AM

Given the same task to 4 models, Fable 5 wins all, but costs 6 times more than Opus 4.8

Task: 3 HTML5 physics scenes: broken bridge derailment, canyon collision, monster truck

Fable 5: $3.12, A+, no clipping GPT 5.5: $1.14, closest to Fable Opus 4.8: $0.56, average results GLM 5.2: $0.08, cheapest, didn’t win a single round

Quality and price still can’t have both. Which would you choose? https://t.co/kljY7cgDB7

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@mylifcc: Jason's comparison of real projects is well-written. Fable 5 indeed shines in complex coding tasks: almost no low-level mistakes, proactively considers edge cases, strictly adheres to the brand system, and can quickly solve tasks in a 13-year-old codebase where GPT has failed multiple times...

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