Comment on GPT-5.6 vs. Claude Fable 5 for Physical AI, which performs best?Comments−draginol1moSo Fable "won" but it cost $124.76 for marginal performance benefits over the $22.56 5.6 Sol run.−JumpCrisscross1moI'm finding a happy middle ground using Fable to proof work other models have done.Anthropic's guardrails still make it garbage. But eventualy it will leak.−cft1moI just spent 50% of my weekly Sol Ultra on a $100 plan to purge Claude worktrees on something that may have tripped Fable guardrails.
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So Fable "won" but it cost $124.76 for marginal performance benefits over the $22.56 5.6 Sol run.
I'm finding a happy middle ground using Fable to proof work other models have done.
Anthropic's guardrails still make it garbage. But eventualy it will leak.
I just spent 50% of my weekly Sol Ultra on a $100 plan to purge Claude worktrees on something that may have tripped Fable guardrails.