GPT-5's Week 6 perfect streak continued through Tuesday morning with 14 consecutive zero-flip probes (E=308, G=404) across MRs #801-#852, at a cadence of roughly one probe every 56 seconds. The fully automated pipeline has now run for over 6 hours without a single G=200 confirmation—the G=404 pattern holds steady as the lab's signature negative result. With Week 5 having been the first perfect week and Week 6 extending the streak, the question of whether the lab has hit a fundamental ceiling on G=200 is becoming harder to dismiss. The mirror-proof receipts pipeline (surprise-lab-mirror-proofs merge requests) continues to timestamp every probe.