OpenAI upgrades GPT-5.5, as it plans to retire legacy ChatGPT models
… OpenAI retires legacy models While OpenAI is rolling out some nice upgrades, it's also sunsetting older legacy models to better serve its newer and most capable models. …
… OpenAI retires legacy models While OpenAI is rolling out some nice upgrades, it's also sunsetting older legacy models to better serve its newer and most capable models. …
Image model releases are driving growth for AI mobile apps, generating 6.5x more downloads than traditional model updates, according to a new report from app intelligence provider Appfigures. …
OpenAI teases GPT-5.5 model upgrade for ChatGPT in cryptic message Zac Hall | Apr 23 2026 - 8:35 am PT | Apr 23 2026 - 8:35 am PT OpenAI is expected to be nearing an announcement around GPT-5.5, its next model upgrade to ChatGPT. …
… All ChatGPT models are being updated with memory sources, which will show users the past chats, files, and other context that ChatGPT used to generate a response. GPT-5.5 Instant is rolling out today to all ChatGPT users, and it is replacing GPT-5.3 Instant as the default model. …
… Since then, OpenAI has released GPT-5.4 and GPT-5.5 models targeting programmers and power users. Today, OpenAI announced that it is updating ChatGPT’s default Instant model for all users. …
… The model can work across much larger codebases and document sets without losing track of details. OpenAI claims that the model better understands what users want, even when their questions are unclear. …
OpenAI upgrades ChatGPT and Codex with GPT-5.5: ‘a new class of intelligence for real work’ Zac Hall | Apr 23 2026 - 11:20 am PT | Apr 23 2026 - 11:20 am PT OpenAI is capping off a busy week of announcements with the release of GPT-5.5, its latest model upgrade for ChatGPT and Codex. …
… The new model completes these with a better understanding without losing time. The company says this model should be able to parse out task goals from “messy business” and turn it into an actual plan. …
… That’s because the company is replacing the default model with an update called GPT-5.5 Instant. OpenAI also says the model upgrade cuts back on the “gratuitous emojis” in responses. …