Users say GPT-5.6 is broken and tell Pro subscribers to fall back to 5.5

andersonbcdefg · x · 2026-07-24

Users are reporting that GPT-5.6 is “broken” and advising others to roll back to 5.5 for now.

The quoted complaint says the GPT Pro subscription offers 2.5 billion tokens a week of GPT-5.6-Sol on the 20x plan, but the user burned through a week’s usage in a single day. The surrounding reply suggests the issue is with the 5.6 harness and not just individual usage patterns.

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