@FinanceYF5: Third-party tests indicate that the returned Fable 5 is not at the same level as the June release. BridgeMind retested the July 1 version with BridgeBench: [Debugging] 86.2→25.9, [Refactoring] 73.6→38.4, [Hallucinat…

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Summary

Third-party tests show that after returning, the Fable 5 model's performance dropped significantly on the BridgeBench benchmark. Debugging score fell from 86.2 to 25.9, Refactoring from 73.6 to 38.4, Hallucination from 75.9 to 61.7. It is speculated that the new safety guardrails caused many tasks to be handed off to Opus 4.8.

Third-party tests say that the returned Fable 5 is not at the same level as the June release. BridgeMind retested the July 1 version with BridgeBench: [Debugging] 86.2→25.9, [Refactoring] 73.6→38.4, [Hallucination] 75.9→61.7. It's said that the new guardrails are too frequent, so many tasks are being handed off to Opus 4.8. What do you think about this drop in scores? https://t.co/ukKW5wkdoR
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Cached at: 07/03/26, 04:39 PM

A third-party test suggests the regressed Fable 5 is no longer at the same level as when it launched in June.

BridgeMind retested the July 1 version using BridgeBench: [Debugging] 86.2→25.9, [Refactoring] 73.6→38.4, [Hallucination] 75.9→61.7.

Word is the new guardrails are too aggressive, with many tasks being handed off to Opus 4.8 instead. What do you make of this drop? https://t.co/ukKW5wkdoR

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