Job Rietbergen(@jobrietbergen):Grok 4.5 doesn't just follow the plan — it fixes it (at only 4% of frontier cost). Handed a plan with a bug, Grok reworked the design to solve it — unprompted. Claude Opus 5 built the bug its own plan contained. As an implementer, Grok gave up nothing to the frontier.

Job Rietbergen

@jobrietbergen

Builder / head of growth @ @kilocode

参加 April 2010

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Job Rietbergen@jobrietbergen

2026.08.05 09:31

Grok 4.5 doesn't just follow the plan — it fixes it (at only 4% of frontier cost). Handed a plan with a bug, Grok reworked the design to solve it — unprompted. Claude Opus 5 built the bug its own plan contained. As an implementer, Grok gave up nothing to the frontier.