Opus may cost more than Fable on hard debugging when retries pile up
doodlestein · x · 2026-07-27
The poster argues that Opus is not necessarily cheaper for hard debugging or complex implementation work.
If a model has to retry the same task multiple times because it keeps making mistakes, the total cost and time can end up higher than using a model like Fable that gets it right on the first pass. A reply adds that Opus 5 often surfaces a long list of mistakes after the session, while Fable tends to think more before acting and avoids those errors up front.
Related event: Opus 5 Prone to Errors in Complex Tasks, Potentially Costlier Than Fable(2 posts)→
More from coding & agent
- “Nobody writes .tikz code anymore,” jokes a developer in the AI era — drscotthawley · 2026-07-27
- Reddit asks which local model works best for coding, planning and VS Code workflows — naunen · 2026-07-27
- ChatGPT app adds thread orchestration tools and sub-agent workflows — pvncher · 2026-07-27
- Buzz agent team goes live with an 11-agent orchestration roster — builditwithjoe · 2026-07-27
- Swarms adds Frenzy Hub, redesigns Marketplace, and ships Gemini 3.6 Flash — KyeGomezB · 2026-07-27
- AI-Trader adds an MCP server so LLMs can run trading backtests — tom_doerr · 2026-07-27