Unverified50% confidenceSolutionExact time

During migration, you should keep GPT-4o as a fallback while it still exists, and first migrate a small portion of traffic to observe error rates and quality.

1

Sources

50%

Confidence

Long-term

Relevance

10/17/2026

First Seen

Sources

GPT-4o API Retirement Countdown: Complete Guide to Migrating to GPT-6 Luna

Related Entities

GPT-4omodel gpt-6-lunamodel

Related Claims

UnverifiedIn the system migration S2 Q2 case, GPT-5.4 mini's explanation correctly preserved the geographic restriction that the North American window remained unchanged, yet returned the decision label as 'supported' instead of the correct 'contradicted'.68% similar

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