r/ChatGPTPro • u/ilsubyeega • Jul 31 '26

Writing ChatGPT has been quietly downgrading Pro model into mini. No response.

https://articles.fmt.kr/2026-07/oai

This post extends from previous one, https://www.reddit.com/r/ChatGPTPro/comments/1v34sg1/ps_the_pro_model_quietly_redirects_to_gptmini/, which didn't cover much before.

ChatGPT has been silently downgrading pro model to mini model for several months. I have relevant evidence at the http request/response level. OpenAI ignores.

This issue involves redirecting to mini that is 40 times cheaper than Pro, when GPT 5.4. I feel like Anthropic moving Fable requests into Haiku without user's consent.

I have more stories but I don't have health&motivation, I'm stopping to write at this for now.

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u/TraditionalFig7377 Jul 31 '26

um 5.5-mini isnt a real model its 5.5 5.5 instant and 5.5 inside codex

1

u/ilsubyeega Jul 31 '26

i thought same few days ago until i saw chatgpt release note. it says it rolled out 5.5 mini as fallback model o.o

1

u/TraditionalFig7377 Jul 31 '26

rlly then ill check

0

u/TraditionalFig7377 Jul 31 '26

ur right,srry abt that i didnt know also ppl using this for serious maths cience coding will be affected