Brief Summary
This YouTube video announces the release of GPT-5, highlighting its enhanced capabilities and accessibility. GPT-5 is presented as a significant upgrade over GPT-4, offering improved reasoning, speed, and user experience. The launch includes demonstrations across coding, writing, learning, and healthcare, showcasing its potential for businesses, developers, and everyday users. Key points include:
- GPT-5 is more intelligent, faster, and more reliable than previous models.
- It is accessible to free, plus, pro, team, enterprise and edu users.
- It features enhanced coding capabilities, improved writing quality, and better performance in health-related tasks.
- New features include customisable voice, personalised chat experiences, and access to Gmail and Google Calendar.
- The API offers three state-of-the-art reasoning models: GPT-5, GPT-5 Mini, and GPT-5 Nano.
Introduction to GPT-5
OpenAI introduces GPT-5 as a major upgrade over GPT-4, designed to be more useful, intelligent, fast, and intuitive. GPT-5 is likened to having a PhD-level expert on demand, capable of writing entire computer programs and assisting with various tasks such as planning events, understanding healthcare, and providing information on any topic. The aim is to empower individuals to achieve more than ever before, with a focus on its importance for businesses and developers.
Reasoning and Benchmarks of GPT-5
GPT-5 incorporates a reasoning paradigm, pausing to think before responding, which is central to OpenAI's AGI program. It eliminates the choice between fast and thoughtful responses, aiming to provide the perfect answer with optimal thinking time. Benchmarks show GPT-5 outperforming previous models and human experts in coding (SWEBench, Ader polyglot), multimodal reasoning (MMU), and mathematical reasoning (Amy 2025). Factuality and reliability have been prioritised, making it the most factual model to date, with improved performance on health-related questions.
Accessibility and Features of GPT-5
GPT-5 is rolling out to free, plus, pro and team users, with enterprise and edu access following the next week. Free users will transition to GPT-5 Mini after hitting their limit, while Pro subscribers get unlimited GPT-5 with extended thinking capabilities. Team, enterprise, and edu customers can use GPT-5 as their default model with generous rate limits. Existing tools like search, file upload, data analysis, image generation, memory, and custom instructions are all compatible with GPT-5.
Live Demos: Reasoning and Learning with GPT-5
A live demo showcases GPT-5's reasoning capabilities by explaining the Bernoulli effect and creating a moving SVG demo in the canvas tool. GPT-5 automatically employs deeper reasoning when needed, providing comprehensive and accurate answers. The model writes nearly 400 lines of code in two minutes to create an interactive demo, illustrating how GPT-5 makes learning more approachable and enjoyable across various subjects.
Live Demos: Writing and Coding with GPT-5
GPT-5 significantly improves writing quality, acting as a more effective partner for drafts, emails, and stories. A eulogy written by GPT-5 is compared to one by GPT-4, highlighting GPT-5's superior rhythm, nuance, and emotional resonance. Another demo shows GPT-5 building a web app for learning French, complete with flashcards, quizzes, and an educational game, demonstrating its ability to bring ideas to life even for those without coding knowledge.
Enhanced Features: Voice and Personalisation
Voice features have been improved to sound more natural, with added video capabilities and consistent language translation. Free users now have hours of chat time, while paid subscribers enjoy nearly unlimited access. Custom GPTs also support voice, allowing tailored experiences. New features include customisable chat colours, personality settings (supportive, professional, sarcastic), and enhanced memory, with access to Gmail and Google Calendar for pro, plus, team and enterprise users to better personalise the AI experience.
Safety and Training Improvements in GPT-5
GPT-5 mitigates deception and hallucinations, featuring safe completions that maximise helpfulness within safety constraints. Instead of outright refusing or fully complying, GPT-5 partially answers questions or provides high-level responses, explaining refusals and offering helpful alternatives. New training techniques leverage previous models to create high-quality synthetic data, teaching GPT-5 complex topics and foreshadowing a recursive self-improvement loop.
Healthcare Applications of GPT-5
GPT-5 is the best model for health-related tasks, scoring higher on Healthbench. A real-world example is shared by a cancer patient who used GPT-5 to understand biopsy results and make informed treatment decisions. GPT-5 is praised for its speed, thoroughness, and ability to act as a thought partner, connecting dots and providing personalised insights. The focus is on empowering patients to actively participate in their healthcare journey.
GPT-5 and the Revolution in Software Engineering
GPT-5 is set to turbocharge the revolution in software engineering, building on previous coding models. It excels at agentic coding tasks, front-end development, and instruction following. The model is fast, thinks for the right amount of time, and is available in the API for developers to build novel applications.
GPT-5 API: New Features and Capabilities
Three state-of-the-art reasoning models are being released in the API: GPT-5, GPT-5 Mini, and GPT-5 Nano, each slotting into the cost latency curve. A new parameter option, minimal, allows for minimal reasoning in latency-sensitive applications. New features include custom tools with free-form plain text, structured outputs with regular expressions or context-free grammars, tool call preambles, and a verbosity parameter to control output expansiveness. GPT-5 sets new highs on coding benchmarks and excels at agentic tool calling and general-purpose instruction following. The API now supports a 400K context window with state-of-the-art performance on long context retrieval and reasoning.
Live Demo: GPT-5 as a Pair Programmer
A live demo showcases GPT-5 as an ideal pair programmer within Cursor, highlighting its autonomy, collaboration, communication, context management, and testing abilities. The model identifies and fixes a bug, demonstrating its understanding of best software engineering practices and its ability to work collaboratively. GPT-5 is tunable with system prompts or Cursor rules, making it a trusted tool for complex coding tasks.
Live Demo: GPT-5 for Front-End Coding
GPT-5 excels at front-end coding, combining good aesthetics by default with steerability. A demo shows the model creating a finance dashboard for a startup in just five minutes, demonstrating its ability to infer intent and produce beautiful, interactive designs. Another demo features GPT-5 generating a 3D castle game with patrolling guards and a balloon-popping mini-game, showcasing its creativity and attention to detail.
GPT-5 in Cursor: A Developer's Perspective
The CEO of Cursor shares his experience with GPT-5, highlighting its code-based understanding abilities and its effectiveness as a real pair programmer. GPT-5 is praised for its speed, interactivity, and ability to be steered, making it suitable for real-world codebases and long-lived applications. GPT-5 is set to be the default for new users in Cursor, offering a free trial for users to experience its capabilities.
GPT-5 for Enterprise Applications
GPT-5 is presented as a subject matter expert for enterprises, applicable across various domains such as legal and finance. Examples include Amgen using GPT-5 for drug design, BBVA for financial analysis, and Oscar for clinical reasoning. The model is also set to be available to two million US federal employees, enabling better and faster services. GPT-5 is available in the API with three models: GPT-5, GPT-5 Mini, and GPT-5 Nano, each priced differently to suit various needs.
Closing Remarks on GPT-5
OpenAI's chief scientist expresses gratitude to the team and emphasises the company's mission to understand and steer deep learning for the benefit of all. GPT-5 represents years of investigation and offers early glimpses of new ideas. The hope is that AI will uncover new knowledge and transform lives for the better.
