Users Complain GPT‑5.6 Sol Severely Regressed in Codex

Least_Base6657 · reddit · 2026-07-20

Multiple daily users of Codex report severe performance regression after upgrading to GPT‑5.6 Sol.

Main issues:

The poster, while acknowledging the model might score higher on benchmarks, notes that its speed, efficiency, and reliability have significantly degraded in real‑world daily coding, calling for an official investigation and token refunds.

Related event: Users Report Severe Degradation in GPT-5.6 Sol Coding(4 posts)→

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