OpenAI models are getting more stable, and a Reddit user says GPT-5.5 now looks highly reliable

ionutvi · reddit · 2026-07-27

A Reddit user says OpenAI’s latest models feel much more stable in day-to-day use: fewer mid-task collapses, more repeatable outputs, and better consistency across prompts.

The post cites AI Stupid Level, which continuously reruns practical tests instead of relying on a one-off benchmark snapshot, and says GPT-5.5 currently ranks among the most reliable models. The author also discloses that they built the benchmark, so the thread mixes user experience with a self-reported evaluation signal.

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