GPT-5 Now Default Model in ChatGPT | Multi AI

As of February 13, 2026, a significant shift has occurred in the landscape of conversational AI: GPT-5 is now the default model in ChatGPT. This pivotal update from OpenAI marks the retirement of several predecessor models, including the widely-used GPT-4o, GPT-4.1, and OpenAI o4-mini. Users logging into ChatGPT will immediately experience the advanced capabilities of GPT-5, which promises substantial improvements in speed, accuracy, and overall intelligence. This transition underscores OpenAI's commitment to continuous innovation, pushing the boundaries of what AI can achieve in daily interactions and complex problem-solving. The move to make GPT-5 the primary interface reflects a consolidation strategy, aiming to streamline user experience and focus development resources on their most cutting-edge technology.

This change isn't just about a new version; it's about a fundamental upgrade to the core of ChatGPT. OpenAI states that GPT-5 outperforms previous models on critical benchmarks, delivering responses approximately 45% less likely to contain factual errors compared to GPT-4o when web search is enabled. Furthermore, its ability to follow instructions has been significantly enhanced, leading to more precise and relevant outputs. For those who frequently rely on ChatGPT for complex tasks, creative writing, or technical assistance, the integration of GPT-5 as the default model in the platform means a noticeable boost in productivity and reliability. This decision ensures that every user benefits from the latest advancements, solidifying ChatGPT's position at the forefront of AI-powered communication tools.

OpenAI's decision to make GPT-5 now default aligns with a broader industry trend of consolidating resources around the most powerful and efficient models. By retiring older versions, the company can dedicate more development, maintenance, and support efforts to their flagship model. This strategic move not only improves the overall reliability and performance of ChatGPT but also allows OpenAI to invest more heavily in future innovations. Users previously had the option to select from various GPT-4 iterations, but with GPT-5's superior capabilities, a unified experience becomes more beneficial. This consolidation simplifies the user interface and guarantees that everyone automatically accesses the best available technology for their tasks.

The retirement of legacy models, while potentially requiring some users to adjust, is a necessary step for progress. OpenAI noted that only a tiny fraction of users (around 0.1%) were still actively choosing older GPT-4o models daily, indicating a natural migration towards newer, more capable systems. This data-driven decision highlights that the vast majority of users are ready for the advancements GPT-5 brings. Multi AI, with its expansive platform of 49 diverse models, constantly monitors these shifts to ensure our users have access to the latest and most effective AI tools, including advanced models like DeepSeek R1T Chimera (free) and Gemini 2.0 Flash (Free) for various applications. Read also: OpenAI Releases GPT-5: A New AI Era

For users of the Multi AI platform, the widespread adoption of GPT-5 as the default model in ChatGPT highlights the ongoing evolution of AI technology. While GPT-5 is a powerful proprietary model, our platform continues to offer an unparalleled selection of 49 different AI models, ensuring you always have the right tool for any task. Whether you need the advanced reasoning of Qwen Plus 0728 (thinking), the lightweight efficiency of Gemma 3 4B (free), or specialized coding capabilities from GPT-5.2-Codex, Multi AI provides the flexibility and choice that single-platform solutions cannot match. We believe in empowering users with diversity, allowing them to compare and contrast performance across a wide array of cutting-edge models.

The availability of GPT-5 as a free model for all ChatGPT users, with higher limits for Plus and unlimited access for Pro subscribers, speaks to OpenAI's strategy of broad accessibility. However, for those requiring specific functionalities, cost-effectiveness, or different architectural approaches, a diverse platform like Multi AI is indispensable. For instance, developers might find the LFM2.5-1.2B-Instruct (free) from LiquidAI ideal for fine-tuned instruction following, or the robust Qwen3 Next 80B A3B Instruct (free) for complex generative tasks. Our platform allows seamless switching and benchmarking between these models, providing a comprehensive AI toolkit beyond any single offering.

The consistent evolution of AI models, exemplified by GPT-5 now default in ChatGPT, underscores the dynamic nature of this technology. Staying informed and adaptable is key for anyone leveraging AI for personal or professional use. While GPT-5 offers a powerful general-purpose solution, specialized tasks often benefit from purpose-built models. For instance, coding professionals might prefer the precision of KAT-Coder-Pro V1, while content creators could explore the nuanced language generation of Palmyra X5. Multi AI is designed precisely for this scenario, offering a centralized hub to access, compare, and integrate a vast array of AI capabilities without being locked into a single provider's ecosystem. Read also: OpenAI Launches GPT-5 with Major Intelligence Leap

The industry's rapid pace of innovation means that what is cutting-edge today might be a baseline tomorrow. Models like GLM 4.7 Flash and MiMo-V2-Flash are continuously being refined and released, each bringing unique advantages to the table. For businesses and individuals who demand the best and most diverse AI tools, a platform that aggregates these innovations is invaluable. Multi AI ensures that whether you're experimenting with new generative capabilities or deploying robust solutions, you have immediate access to the latest advancements, including the powerful capabilities that make GPT-5 now default a benchmark in the industry.

The move to make GPT-5 now default in ChatGPT is more than just a version upgrade; it's a statement about the future direction of AI accessibility and performance. It sets a new standard for what users can expect from a conversational AI, pushing competitors to innovate further. This will undoubtedly spur the development of even more sophisticated models across the AI ecosystem, from open-source projects like Llama 3.2 3B Instruct (free) to commercial offerings like Hermes 3 405B Instruct (free). The increased baseline performance will benefit everyone, driving advancements in areas like multimodal understanding, complex reasoning, and personalized AI interactions.

As the capabilities of models like GPT-5 continue to grow, the integration of AI into our daily lives will become even more seamless and impactful. From automating routine tasks to assisting with complex research, the enhanced reliability and intelligence of the new default model will open up new possibilities. Multi AI will remain at the forefront, continually integrating and curating the best available models, including specialized variants like Qwen3 Coder 480B A35B (exacto) for specific use cases, ensuring our users always have access to a comprehensive and up-to-date suite of AI tools to meet any challenge. Read also: GPT-5 Pro Introduced as OpenAI's Highest-Reasoning Model