Legacy Models to Be Retired! Codex Will Discontinue Several Large Models, GPT-5.5 Intelligence Drop Controversy Still Unresolved
The platform announced that multiple older large language models, including GPT-5.2 and GPT-5.3-Codex, will be forcibly retired on June 2, 2026, with a full transition to the flagship GPT-5.5 model. This move has sparked controversy among developers, who report significant performance degradation in the new model and have publicly voiced complaints and backlash.....