Custom Instructions for ChatGPT
OpenAI is rolling out a custom instructions feature for ChatGPT that allows users to set persistent preferences influencing all future conversations. The feature gives users more control over ChatGPT's tone, style, and context without needing to repeat instructions each session. This represents an incremental personalization capability rather than a core model or capability change.
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Introducing GPTs: Custom Versions of ChatGPT
OpenAI announced GPTs, a feature allowing users to create customized versions of ChatGPT by combining custom instructions, additional knowledge, and selectable capabilities. GPTs can be built without coding and are designed for specific use cases, ranging from personal productivity to enterprise deployment. OpenAI also announced a forthcoming GPT Store where creators can share and potentially monetize their GPTs.
Memory and new controls for ChatGPT
OpenAI is testing a persistent memory feature for ChatGPT that allows the model to retain information across conversations. Users are given controls to manage what ChatGPT remembers, including the ability to view, edit, or delete stored memories. The rollout begins as a limited test before broader availability.
Building more helpful ChatGPT experiences for everyone
OpenAI is announcing a set of ChatGPT safety and helpfulness improvements including new parental controls for teen users, routing of sensitive conversations to reasoning models, and partnerships with external experts. The update reflects OpenAI's ongoing effort to balance accessibility with safeguards across different user demographics. Routing sensitive queries to reasoning models is a notable architectural/policy decision that may affect response quality and safety outcomes.
GPT-5.1: A smarter, more conversational ChatGPT
OpenAI is rolling out GPT-5.1, an upgrade to the GPT-5 series, beginning with paid users on November 12, 2025. The update emphasizes warmer conversational tone, improved capabilities, and new options for customizing ChatGPT's tone and style. No specific benchmark results or architectural details are provided in the announcement.
GPT-5.5 Instant: smarter, clearer, and more personalized
OpenAI has released GPT-5.5 Instant as the new default model for ChatGPT, succeeding the prior default with claims of smarter and more accurate responses, reduced hallucinations, and improved personalization controls. The announcement positions this as an incremental but meaningful update to the flagship consumer product. No architectural or training details are provided in the announcement body.
Introducing ChatGPT
OpenAI announced ChatGPT, a conversational model trained to engage in dialogue, answer follow-up questions, acknowledge errors, challenge incorrect premises, and decline inappropriate requests. The model's dialogue format represented a significant step in making large language models accessible and interactive for general users. This November 2022 launch marked a pivotal moment in public AI adoption.
Helping ChatGPT better recognize context in sensitive conversations
OpenAI has released safety updates to ChatGPT aimed at improving context awareness in sensitive conversations. The updates focus on detecting risk signals over time within a conversation rather than evaluating individual messages in isolation. This represents an incremental improvement to ChatGPT's safety and harm-reduction capabilities in high-stakes interactions.
Customizing GPT-3 for your application
OpenAI announced fine-tuning capabilities for GPT-3, enabling developers to customize the model for specific applications via a single command. This feature allows users to adapt GPT-3's behavior to their use case by training on domain-specific data. The announcement marks an early milestone in making large language model customization accessible through an API.