GPT-5 Release and Rollout: What's New in 2026?

The artificial intelligence landscape continues its rapid transformation, with OpenAI consistently pushing the boundaries of what large language models can achieve. The latter half of 2025 and early 2026 marked a pivotal period, dominated by the highly anticipated GPT-5 Release and Rollout. OpenAI delivered on its promise of significantly advanced capabilities, evolving the core GPT-5 model into a sophisticated suite of specialized tools. This strategic rollout has fundamentally reshaped how businesses and individuals interact with AI, offering unprecedented levels of intelligence, reliability, and versatility across various applications. Understanding these developments is crucial for anyone leveraging AI in their daily work.

Building upon the strong foundation laid by previous iterations like GPT-4o and GPT-4.1, the GPT-5 series introduces a new era of AI. OpenAI's focus on factuality, reliability, and nuanced understanding addresses long-standing challenges in the field. From enhanced conversational styles to advanced coding capabilities, the GPT-5 models are designed to be legitimate PhD experts in any area, as CEO Sam Altman described. This comprehensive overview will delve into the specific models, their key features, and the practical implications for users on platforms like Multi AI, where you can access these cutting-edge technologies.

Released on December 11, 2025, GPT-5.2 Chat quickly established itself as the default model for all ChatGPT users by February 13, 2026. This upgrade represents a significant leap in intelligence and overall usefulness for both work and learning environments. OpenAI meticulously incorporated user feedback from earlier models, particularly regarding the conversational style of GPT-4o, leading to an overwhelmingly positive reception for GPT-5.2. In fact, 99.9% of users expressed a preference for this newer version, highlighting its superior performance and user experience. The model's improvements extend to enhanced reasoning and responsiveness, making complex interactions more intuitive and effective.

The GPT-5.2 rollout also saw refinements in its 'Thinking' mode. Initially, an inadvertent reduction in its extended thinking level occurred in January 2026, which OpenAI promptly addressed by restoring it to its prior setting on February 4, 2026. This commitment to maintaining optimal performance ensures that users can rely on GPT-5.2 for tasks requiring deep analytical thought and multi-step reasoning. Developers using the API also benefit from these consistent updates, with the GPT-5.2 Instant Update on February 10, 2026, further improving response style and quality across the board. This iterative development approach ensures that the GPT-5 series remains at the forefront of AI innovation.

Beyond the general-purpose GPT-5 Chat and GPT-5.2, OpenAI introduced highly specialized variants to cater to diverse professional needs. The most notable among these is GPT-5.3-Codex, released in December 2025. This model is an ultra-fast coding assistant, optimized for real-time development workflows. It boasts the ability to generate over 1,000 tokens per second, making it an invaluable tool for programmers and software engineers. During a rigorous 25-hour stress test, GPT-5.3-Codex successfully built a design tool using approximately 13 million tokens and producing about 30,000 lines of code, showcasing its exceptional efficiency and accuracy. This level of performance significantly accelerates development cycles. Read also: GPT-5 Now Default Model in ChatGPT | Multi AI

Another crucial development in the GPT-5 series is GPT-5 Image Mini. While details on its specific release date are less public, its presence indicates OpenAI's continued expansion into multimodal capabilities. This model likely focuses on efficient image processing and generation tasks, complementing the text-based strengths of its siblings. The unified system architecture of GPT-5, as outlined in the official Introducing GPT-5 announcement, allows for seamless switching between quick responses and extended reasoning, and this extends to multimodal interactions. Such specialized tools are vital for developers building complex AI applications that require both textual and visual understanding.

The overarching theme of the GPT-5 family is a significant leap in general intelligence. OpenAI emphasizes state-of-the-art performance across a wide range of domains, including coding, mathematics, writing, health, and visual perception. GPT-5 Pro achieved an impressive 88.4% on GPQA benchmarks, demonstrating its advanced problem-solving capabilities. Crucially, the models show improved capabilities for multi-step instruction following and agentic tool use, enabling more complex and autonomous AI interactions. This means users can provide more intricate prompts and expect more precise and comprehensive outputs, reducing the need for constant human oversight.

The focus on user experience is evident not only in the improved model performance but also in security features. OpenAI introduced 'Lockdown Mode' for ChatGPT, providing enhanced protection against prompt-injection attacks. This feature is particularly important for enterprise users and those handling sensitive data, ensuring that their interactions with the AI remain secure and private. The continuous integration of user feedback, as seen with GPT-5.2's conversational style, underscores OpenAI's commitment to delivering AI that is not only powerful but also intuitive and safe for its rapidly growing user base, which now approaches 700 million weekly active users.

Multi AI provides a centralized platform to access and leverage the full potential of the latest OpenAI models, alongside other leading AI technologies like Gemini 3.1 Pro Preview, Claude Opus 4.6, and Llama 3.1 70B Instruct. With 49 total models available, users can easily compare and select the best tool for their specific needs. For tasks requiring cutting-edge coding assistance, GPT-5.3-Codex is an excellent choice. For general conversational AI and complex reasoning, GPT-5.2 Chat stands out as a top-tier option. The platform streamlines access, allowing developers and businesses to integrate these powerful models into their applications with ease. Read also: OpenAI Launches GPT-5 with Expert-Level Intelligence

The Multi AI platform simplifies the process of staying updated with the rapid advancements in AI. By offering direct access to models like o1 and gpt-oss-120b (exacto), alongside the GPT-5 series, we empower users to experiment and innovate. Whether you are a developer looking for the fastest coding model or a content creator seeking advanced writing assistance, the GPT-5 Release and Rollout ensures there is a powerful tool available. Explore the full range of models and discover how they can transform your projects. For real-time updates and discussions, consider joining the official Multi AI Telegram channel: Multi AI Platform.

The GPT-5 Release and Rollout marks a monumental achievement in the field of artificial intelligence, setting new benchmarks for performance, reliability, and user experience. With general models like GPT-5.2 Chat and specialized tools such as GPT-5.3-Codex, OpenAI continues to empower users and developers with unparalleled AI capabilities. The emphasis on factuality, advanced reasoning, and robust security features ensures that the GPT-5 series is not just powerful but also practical and trustworthy for a myriad of applications. As the AI landscape continues to evolve, staying informed about these advancements is key to harnessing the full potential of this transformative technology.

Multi AI remains dedicated to providing seamless access to these cutting-edge models, enabling you to integrate the latest AI innovations into your projects and workflows. Explore the diverse range of models available on our platform and discover how the GPT-5 series can elevate your work in 2026 and beyond. Whether for complex coding, creative writing, or analytical tasks, the future of AI is now more accessible and powerful than ever before. Read also: GPT-5 Release and Default Model Transition | Multi AI