Model regression and quality degradation

7/10 High

Users report that GPT-4 performance has regressed, performing closer to GPT-3.5 than expected, and there is a widespread perception that the model was 'dumbed down' over time. Tasks that worked correctly in 2024 now produce incorrect or inconsistent results.

ChatGPTGPT-4GPT-3.5
Category
performance
Workaround
none
Stage
debug
Freshness
worsening
Scope
single_lib
Upstream
open
Recurring
Yes
Buyer Type
individual
Maintainer
slow

Sources

Collection History

Query: “What are the most common pain points with ChatGPT for developers in 2025?”4/8/2026

Early adopters feel like they've lost a 'smarter friend.' Workflows built on ChatGPT's earlier capabilities might break if the AI suddenly won't follow complex instructions or produce the same quality of output. For Plus users, a regression feels like not getting what they pay for – some even say GPT-4 now performs closer to GPT-3.5.

Created: 4/8/2026Updated: 4/8/2026