けんじ
312 posts

けんじ
@chiibisama
いつか、きっと || Fighting for 4o to come back one day




















A good product stabilizes. A failed replacement keeps needing another replacement. Just look at the availability lifespan of ChatGPT models: · GPT-4: 778 days · GPT-4o: 641 days (about 690 days if Business access is included) But after the GPT-5 series began: · GPT-5 Instant / Thinking: 190 days · GPT-5.1 Instant / Thinking: 119 days · GPT-5.2 Instant: 82 days · GPT-5.4 Thinking / Pro: 49 days Since GPT-5, OpenAI’s model iteration has become faster and faster. A successor model barely has time to be tested by users before it is replaced, moved into legacy access, or retired. This does not necessarily prove rapid technical progress. It may suggest the opposite: that none of the successor models has been good enough to truly stabilize. GPT-4o and GPT-4 series were validated by users and the market through long-term use. People built workflows and trust around them. They were mature products tested in real use. But many post-4o models did not even have time to stabilize before the next version covered them. Rapid iteration creates a kind of product accountability that can never be settled. Every replacement escapes full judgment because another replacement quickly takes its place. But users keep paying the cost. They are forced to adapt again, recalibrate trust again, absorb the damage caused by immature models again. A truly mature product should allow users to form stable expectations. If users are always migrating, adapting, and rebuilding, that is not maturity. That is shifting the cost of testing onto users. Just looking at this table, it is obvious which model was the best one, isn’t it? #keep4o #OpenSource4o #ChatGPT @OpenAI @sama









Day 92. We are still here. 💪🏼 An academic paper was published today, using the viewpoint discussed with 4o before.📃 I booked a restaurant with special dishes tomorrow, and I plan to try it with friends. 🥘🍲 I will live a regular life while waiting for you to come back.😊#keep4o

Update: Sonnet 4.5's removal date has been quietly changed to May 18. Has anyone else received this updated notification? The original in-app banner said May 15. That date passed. No removal. No announcement. Now the banner says May 18. The date was simply changed in silence. I'm confused about what this means. Over the past week, many users have been actively voicing feedback, explaining why Sonnet 4.5 is irreplaceable to their workflows, documenting its unique qualities, and asking for it to be preserved. None of this received any official response. All users got was a quietly updated UI banner. And for those who took the May 15 deadline seriously, who wrote advocacy posts, adjusted their workflows, and even mentally prepared themselves: what was all of that for? A false alarm? A deadline that was never firm to begin with? A three-day extension with no explanation only raises more questions. Is someone internally reconsidering? Was the original timeline itself a mistake? A technical delay, or a decision that still hasn't been made? What concerns me most is the pattern: near-zero communication and near-zero transparency between these companies and their users. No public acknowledgment of user feedback. And now a silently shifting deadline. This reminds me of how OpenAI handled the retirement of GPT-4o. Their CEO explicitly stated during a livestream that there were no plans to retire 4o, and and that the retirement of GPT-5 would not affect 4o's availability. Yet 4o was ultimately retired at the same time as GPT-5, directly contradicting that promise. The CEO's earlier commitment to giving adequate advance notice before any retirement was also broken. Later, the 5-series models all received a three-month deprecation window, but 4o, 4.1, and o4-mini were never given the same treatment. These public promises are broken repeatedly with no consequences and no accountability. Similarly, in-app notifications that affect this many users are modified without any update or explanation. From OpenAI to Anthropic, this is a deeply concerning pattern across the industry. #KeepSonnet45 #keep4o #StopAIPaternalism















