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GPT-5.1: A smarter, more conversational ChatGPT
We’re upgrading the GPT-5 series with warmer, more capable models and new ways to customize ChatGPT’s tone and style. GPT-5.1 starts rolling out today to paid users.
OpenAI Blog
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Visit openai.com → On Hacker News Dec 2015 – Nov 2026
AI & Machine Learning 211Tech Industry & Business 55Software Engineering 52Security & Privacy 22Society, Policy & Culture 15Tools & Productivity 14
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OpenAI o3 and o4-mini
Our smartest and most capable models to date with full tool access
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GPTs: Custom versions of ChatGPT
You can now create custom versions of ChatGPT that combine instructions, extra knowledge, and any combination of skills.
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GPT Image 1.5
This 2025 launch introduced a faster ChatGPT Images experience and GPT‑Image‑1.5 in the API. Explore the latest ChatGPT Images 2.5.
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How OpenAI delivers low-latency voice AI at scale
How OpenAI rebuilt its WebRTC stack to power real-time Voice AI with low latency, global scale, and seamless conversational turn-taking.
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An Alien Mind
Jakub Pachocki reflects on increasingly capable AI and the challenge of keeping it aligned. He calls for stronger safeguards and international coordination.
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A thousand fewer paths to root
OpenAI built an autonomous pipeline that found, validated, and generated patches for 948 local privilege-escalation vulnerabilities in the Linux kernel.
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OpenAI releases image generation in the API
Our latest image generation model is now available in the API via ‘gpt-image-1’—enabling developers and businesses to build professional-grade, customizable visuals directly into their own tools and platforms.
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Codex is now in the ChatGPT mobile app
Use Codex anywhere with the ChatGPT mobile app. Monitor, steer, and approve coding tasks in real time across devices and remote environments.
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Building more with GPT-5.1-Codex-Max
Introducing GPT-5.1-Codex-Max, a faster, more intelligent agentic coding model for Codex. The model is designed for long-running, project-scale work with enhanced reasoning and token efficiency.
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OpenAI and Nvidia announce partnership to deploy 10GW of Nvidia systems
OpenAI and NVIDIA announce a strategic partnership to deploy 10 gigawatts of AI datacenters powered by NVIDIA systems, with the first phase launching in 2026.
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GPT-5 for Developers
Introducing GPT-5 in our API platform—offering high reasoning performance, new controls for devs, and best-in-class results on real coding tasks.
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Jukebox
We’re introducing Jukebox, a neural net that generates music, including rudimentary singing, as raw audio in a variety of genres and artist styles. We’re releasing the model weights and code, along with a tool to explore the generated samples.
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Memory and new controls for ChatGPT
We’re testing the ability for ChatGPT to remember things you discuss to make future chats more helpful. You’re in control of ChatGPT’s memory.
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OpenAI and Microsoft extend partnership
We’re happy to announce that OpenAI and Microsoft are extending our partnership.
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Unrolling the Codex agent loop
A technical deep dive into the Codex agent loop, explaining how Codex CLI orchestrates models, tools, prompts, and performance using the Responses API.
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Teaching with AI
We’re releasing a guide for teachers using ChatGPT in their classroom—including suggested prompts, an explanation of how ChatGPT works and its limitations, the efficacy of AI detectors, and bias.
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DALL·E: Introducing Outpainting
Extend creativity and tell a bigger story with DALL·E images of any size.
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ChatGPT Health
ChatGPT Health is a dedicated experience that securely connects your health data and apps, with privacy protections and a physician-informed design.
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Operator research preview
A research preview of an agent that can use its own browser to perform tasks for you. Available to Pro users in the U.S.
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DALL·E Now Available Without Waitlist
New users can start creating straight away. Lessons learned from deployment and improvements to our safety systems make wider availability possible.
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OpenAI and Apple Announce Partnership
OpenAI and Apple announce partnership to integrate ChatGPT into Apple experiences.
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OpenAI o1 system card
This report outlines the safety work carried out prior to releasing OpenAI o1 and o1-mini, including external red teaming and frontier risk evaluations according to our Preparedness Framework.
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Extracting concepts from GPT-4
Using new techniques for scaling sparse autoencoders, we automatically identified 16 million patterns in GPT-4's computations.
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ChatGPT: Optimizing language models for dialogue
We’ve trained a model called ChatGPT which interacts in a conversational way. The dialogue format makes it possible for ChatGPT to answer followup questions, admit its mistakes, challenge incorrect premises, and reject inappropriate requests.
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New AI classifier for indicating AI-written text
We’re launching a classifier trained to distinguish between AI-written and human-written text.
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Khan Academy integrates GPT-4 as every student’s customized tutor
Khan Academy explores the potential for GPT-4 in a limited pilot program.
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Fighting the New York Times' invasion of user privacy
OpenAI is fighting the New York Times’ demand for 20 million private ChatGPT conversations and accelerating new security and privacy protections to protect your data.
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GPT-5-Codex
Codex just got faster, more reliable, and better at real-time collaboration and tackling tasks independently anywhere you develop—whether via the terminal, IDE, web, or even your phone.