According to Greg Brockman (@gdb), prompting GPT-5.2 Codex for long-running tasks represents a significant advancement for AI-driven automation workflows, enabling developers and enterprises to delegate complex, time-intensive processes to AI systems with improved reliability and scalability (source: Greg Brockman, Twitter, Dec 21, 2025). This capability empowers businesses to optimize operational efficiency, automate repetitive coding or data processing tasks, and reduce human intervention in software development cycles. The enhancement opens new business opportunities for AI-powered development platforms, SaaS automation tools, and enterprise resource optimization by leveraging Codex's advanced prompt engineering for extended task execution.

According to JZ (@jamesfzhang) and as highlighted by Greg Brockman (@gdb), ChatGPT has launched a native integration for writing emails, introducing AI-powered writing blocks that simplify email composition within the chat interface (source: https://x.com/jamesfzhang/status/2002104182397153358). Users can now update and format email text directly in ChatGPT, highlight sections for AI-driven suggestions, and accept or reject proposed changes before exporting the draft to their email client. This feature enhances workflow efficiency for professionals, enabling seamless drafting and editing of business emails with generative AI, and positions ChatGPT as a practical tool for enterprise-level communication (source: https://twitter.com/gdb/status/2002176365676912766).

According to OpenAI (@OpenAI) and Greg Brockman (@gdb), users can now personalize ChatGPT by adjusting characteristics such as warmth, enthusiasm, and emoji usage directly within the "Personalization" settings. This update enables businesses and individual users to fine-tune AI interactions for improved customer engagement, brand alignment, and user experience. The feature opens new opportunities for companies to deploy AI assistants that reflect their unique brand voice, fostering better client relationships and increased retention (source: https://x.com/OpenAI/status/2002099459883479311).

According to @OpenAIDevs, OpenAI Codex now officially supports skills based on the AgentSkills.io standard (source: https://x.com/OpenAIDevs/status/2002099762536010235). Skills are reusable bundles of instructions, scripts, and resources designed to help Codex efficiently complete specific tasks. Developers can directly call a skill or let Codex automatically select the appropriate skill based on the prompt, streamlining AI-powered software automation. This development enables businesses to scale AI integrations faster, improve workflow automation, and accelerate the adoption of AI-driven solutions across various industries (source: @OpenAIDevs).

According to Techmeme (@Techmeme), OpenAI has sold over 700,000 ChatGPT licenses to approximately 35 US public universities, enabling both students and faculty to leverage advanced AI tools for educational purposes. In September alone, these users collectively engaged with ChatGPT more than 14 million times, surpassing usage numbers of competitors like Copilot (Bloomberg). This large-scale adoption demonstrates a significant trend toward AI integration in academia, offering universities opportunities to enhance learning outcomes, streamline administrative tasks, and improve research productivity. The move highlights the growing role of generative AI in educational institutions and signals a competitive business opportunity for AI providers targeting the education sector (Bloomberg, Techmeme).

According to OpenAI Newsroom, OpenAI and the U.S. Department of Energy (DOE) are expanding their partnership to advance scientific research and accelerate innovation using artificial intelligence and advanced computing. The collaboration focuses on leveraging AI capabilities within DOE's national laboratories to support national scientific priorities, including the Genesis Mission, which aims to accelerate scientific discovery across multiple domains (source: OpenAI Newsroom, December 18, 2025). This partnership highlights concrete business opportunities for AI solution providers in scientific research, high-performance computing, and public sector digital transformation.

According to OpenAI (@OpenAI), the company has released a comprehensive framework and evaluation suite focused on measuring chain-of-thought (CoT) monitorability in AI models. This initiative covers 13 distinct evaluations across 24 environments, enabling precise assessment of how well AI models verbalize their internal reasoning processes. Chain-of-thought monitorability is highlighted as a crucial trend for improving AI safety and alignment, as it provides clearer insights into model decision-making. These advancements present significant opportunities for businesses seeking trustworthy, interpretable AI solutions, particularly in regulated industries where transparency is critical (source: openai.com/index/evaluating-chain-of-thought-monitorability; x.com/OpenAI/status/2001791131353542788).

According to Shaun Ralston (@shaunralston), OpenAI has updated its Model Spec to clearly define the intended behaviors for the AI models powering its products. The Model Spec details explicit rules, priorities, and tradeoffs that govern model responses, moving beyond marketing to explicit operational guidelines (source: https://x.com/shaunralston/status/2001744269128954350). Notably, the latest update includes enhanced protections for teen users, addressing content filtering and responsible interaction. For AI industry professionals, this update provides transparent insight into OpenAI's approach to model alignment, safety protocols, and ethical AI development. These changes signal new business opportunities in AI compliance, safety auditing, and responsible AI deployment (source: https://model-spec.openai.com/2025-12-18.html).

According to Greg Brockman on Twitter, Codex is now demonstrating significant improvements in identifying security vulnerabilities within code. OpenAI is exploring trusted access programs specifically designed for defensive cybersecurity tasks, which could enable both enterprises and the open-source community to leverage Codex for producing more secure software. This development points to expanding business opportunities in AI-driven cybersecurity solutions and sets the stage for organizations to implement more robust, AI-assisted code review processes, as confirmed by OpenAI's official announcement (source: Greg Brockman on Twitter, Dec 18, 2025; OpenAI.com).

According to Greg Brockman on Twitter, OpenAI has launched GPT-5.2-Codex, which is specifically optimized for long-horizon agentic coding tasks. The model demonstrates strong performance in code refactoring and system migrations, positioning itself as a leading AI tool for enterprise-level software modernization and automation workflows. This launch highlights significant business opportunities for companies seeking scalable AI-driven code transformation solutions and reinforces Codex's role as a foundational technology in the AI development tools market (Source: Greg Brockman, Twitter, Dec 18, 2025).

According to @lennysan and @gdb on Twitter, OpenAI utilized its Codex AI platform to build the Sora Android app, which rapidly became the #1 app globally, in just 18 days (source: https://x.com/lennysan/status/2001074732293300301). This demonstrates how Codex enables fast prototyping and deployment of complex AI-powered applications, significantly reducing development timelines. For AI businesses and developers, this highlights the practical advantage and market opportunity of integrating Codex or similar AI coding assistants to streamline mobile app development and quickly capture market demand.

According to Greg Brockman (@gdb), businesses and developers can now easily create a ChatGPT app using OpenAI’s latest tools and APIs. The streamlined process enables rapid deployment of conversational AI applications for customer service, personal assistants, and productivity solutions, opening new revenue channels and improving user engagement. This development highlights a growing trend of low-code AI app creation, lowering barriers for startups and established companies to integrate advanced language models into their offerings. (Source: Greg Brockman, Twitter, Dec 17, 2025)

According to Greg Brockman (@gdb), imagegen-1.5 has emerged as the leading AI model in the Image Arena, outperforming competitors in visual content generation as of December 2025 (source: Greg Brockman, Twitter, Dec 17, 2025). This advancement highlights significant progress in generative AI technology, particularly in producing high-quality and realistic images for commercial and creative applications. The top ranking of imagegen-1.5 demonstrates strong potential for businesses seeking to streamline content creation workflows, enhance digital marketing strategies, and unlock new monetization opportunities in sectors like advertising, media, and e-commerce. Organizations investing in AI-driven visual solutions stand to gain a competitive edge as the demand for dynamic, cost-effective image generation continues to rise.

According to Ethan Mollick (@emollick), the 2025 Physicians AI Report reveals that 67% of doctors are now using AI tools daily, with 84% reporting that these tools improve their medical practice. Notably, 42% say AI increases their desire to remain in medicine. The primary AI use cases cited are administrative workflow optimization and research assistance, leading to increased efficiency and reduced burnout. This rapid AI adoption highlights significant business opportunities for healthcare AI solution providers targeting physician productivity and operational automation (source: 2025 Physicians AI Report, cited by @emollick, https://2025-physicians-ai-report.offcall.com/).

According to Scale AI (@scale_AI), GPT-5 Pro by OpenAI has emerged as the top reasoning model of 2025, outperforming competitors on SEAL’s reasoning leaderboards. The model demonstrated superior performance in tackling complex questions, providing clear explanations of its reasoning process, and solving multi-step problems. This advancement highlights significant progress in large language model capabilities, particularly for enterprise and research applications requiring advanced problem-solving and explainability. The improved reasoning abilities of GPT-5 Pro open new business opportunities for industries such as finance, healthcare, and legal services, where automated systems can now address previously intractable tasks with greater accuracy and transparency (source: https://x.com/scale_AI/status/2000998950824968482).

According to 9to5Mac, OpenAI has officially announced that Apple Music will be integrated into ChatGPT, enabling users to access and control Apple Music directly through the AI platform (source: 9to5Mac, @mvcmendes, 2025-12-16). This integration represents a significant advancement in AI-powered music streaming services, allowing for seamless natural language interactions to discover, play, and manage music. For businesses in the AI and music tech sectors, this collaboration opens new opportunities for developing smart recommendation systems, enhancing user personalization, and building additional AI-driven tools for the music industry.

According to @OpenAI, ChatGPT Images introduces a next-generation AI image generation model now available to all ChatGPT users and via API as GPT Image 1.5. The new model offers significantly stronger instruction following, precise editing capabilities, and improved detail preservation, making it four times faster than previous versions (source: OpenAI, https://x.com/OpenAI/status/2000990989629161873). This rollout enables businesses and developers to integrate high-quality, rapid image creation and editing tools into a variety of applications, streamlining content workflows and unlocking new market opportunities in creative industries, design automation, and digital marketing.

According to OpenAI (@OpenAI), the company has introduced ChatGPT Images, a new product experience powered by their latest flagship AI image generation model. This upgrade brings significantly stronger instruction following, precise image editing capabilities, and improved detail preservation. OpenAI claims the new model is four times faster than previous versions, making it a substantial improvement for both consumer and business users. The rollout is available today for all ChatGPT users and through the API as GPT Image 1.5 (Source: OpenAI via Twitter, Dec 16, 2025). This development highlights the growing commercial potential for AI-driven creative workflows, offering enterprises new opportunities to automate and scale image generation tasks across marketing, design, and e-commerce sectors.

According to Greg Brockman (@gdb), a new benchmark has been released to evaluate the capability of AI systems in expert-level scientific reasoning, signaling a major leap in scientific progress through AI in 2026. This benchmark provides standardized metrics to assess how well AI models can perform complex scientific tasks, helping organizations gauge AI readiness for research applications and accelerating innovation in scientific fields. The introduction of such a benchmark is expected to drive investment in AI-powered research tools and enable businesses to identify opportunities in AI-driven scientific discovery (source: Greg Brockman via Twitter, Dec 16, 2025).

According to Greg Brockman (@gdb), GPT-5.2 introduces enhanced capabilities for handling long context, allowing businesses and developers to process and analyze significantly larger documents and datasets with greater accuracy and efficiency (source: https://twitter.com/gdb/status/2000772189365182887). This advancement enables practical applications in legal, research, and enterprise automation, unlocking new opportunities for AI-driven content summarization, contract analysis, and knowledge extraction where extended context windows are essential.