A message from Bret Taylor, Chair of the OpenAI Board of Directors, and a letter from @sama about our structure.
@openai
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GPT-4o Update Issues: Sycophancy Problems and Future Fixes
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We’ve spent the last few days doing a deep dive on what went wrong with last week’s GPT-4o update in ChatGPT. Expanding on what we missed with sycophancy and the changes we’re going to make in the future:
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OpenAI Head Discusses ChatGPT Personality in AMA Session
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AMA at 9:30am PT with Head of Model Behavior @joannejang to talk all things ChatGPT's personality. https://
reddit.com/r/ChatGPT/comm
ents/1kbjowz/ama_with_openais_joanne_jang_head_of_model/
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OpenAI Rolls Back GPT-4o Update Over Excessive Agreeability
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We’ve rolled back last week's GPT-4o update in ChatGPT because it was overly flattering and agreeable. You now have access to an earlier version with more balanced behavior. More on what happened, why it matters, and how we’re addressing sycophancy:
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ChatGPT Enhances Citations with Multi-Source Verification
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Improved Citations
— OpenAI (@OpenAI) 28 avril 2025
ChatGPT can now include multiple citations for a given response, allowing you to learn more or verify information across more sources.
We’ve also added a new ‘highlight’ UI to more clearly show which part of the answer the citation refers to. pic.twitter.com/NdojcPyA9TImproved Citations ChatGPT can now include multiple citations for a given response, allowing you to learn more or verify information across more sources. We’ve also added a new ‘highlight’ UI to more clearly show which part of the answer the citation refers to.
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ChatGPT Launches Improved Search and Shopping Experience Features
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We're excited to announce we’ve launched several improvements to ChatGPT search, and today we’re starting to roll out a better shopping experience. Search has become one of our most popular & fastest growing features, with over 1 billion web searches just in the past week
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ChatGPT Launches Shopping Feature with Product Comparison
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Shopping
— OpenAI (@OpenAI) 28 avril 2025
We’re experimenting with making shopping simpler and faster to find, compare, and buy products in ChatGPT.
✅ Improved product results
✅ Visual product details, pricing, and reviews
✅ Direct links to buy
Product results are chosen independently and are not ads.… pic.twitter.com/PkZwsTxJUjShopping We’re experimenting with making shopping simpler and faster to find, compare, and buy products in ChatGPT. Improved product results Visual product details, pricing, and reviews Direct links to buy Product results are chosen independently and are not ads.
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ChatGPT Now Available on WhatsApp for Live Answers
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Search in WhatsApp You can now send a WhatsApp message to 1-800-ChatGPT (+1-800-242-8478) to get up-to-date answers and live sports scores. Accessible everywhere ChatGPT is available. https://
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Deep Research Access Expanded for Plus Team Pro Users
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All Plus, Team, and Pro users now have expanded usage of deep research. Enterprise and Edu users will get access the following week, and will have the same usage levels as Team users. The lightweight version of deep research is starting to rollout today to all Free users.
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OpenAI Launches Lightweight o4-mini Deep Research Model
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The lightweight version of deep research is powered by a version of OpenAI o4-mini and is nearly as intelligent as the deep research people already know and love, while being significantly cheaper to serve. Responses will typically be shorter while maintaining the depth and