List of the Top 17 Large Language Models for ChatGPT Plus in 2025

ChatGPT, developed by OpenAI, is a sophisticated language model that generates coherent and contextually appropriate replies by drawing from a wide selection of internet text. Its extensive training equips it to tackle a multitude of tasks in natural language processing, such as engaging in dialogues, responding to inquiries, and producing text in diverse formats. Leveraging deep learning algorithms, ChatGPT employs a transformer architecture that has demonstrated remarkable efficiency in numerous NLP tasks. Additionally, the model can be customized for specific applications, such as language translation, text categorization, and answering questions, allowing developers to create advanced NLP systems with greater accuracy. Besides its text generation capabilities, ChatGPT is also capable of interpreting and writing code, highlighting its adaptability in managing various content types. This broad range of functionalities not only enhances its utility but also paves the way for innovative integrations into an array of technological solutions. The ongoing advancements in AI technology are likely to further elevate the capabilities of models like ChatGPT, making them even more integral to our everyday interactions with machines.

OpenAI is committed to ensuring that artificial general intelligence (AGI)—characterized by its ability to perform most tasks that are economically important with a level of autonomy that surpasses human capabilities—benefits all of humanity. Our primary goal is to create AGI that is both safe and beneficial; however, we also view our mission as a success if we empower others to reach this same objective. You can take advantage of our API for numerous language-based functions, such as semantic search, summarization, sentiment analysis, content generation, translation, and much more, all achievable with just a few examples or a clear instruction in English. A simple integration gives you access to our ever-evolving AI technology, enabling you to test the API's features through these sample completions and uncover a wide array of potential uses. As you explore, you may find innovative ways to harness this technology for your projects or business needs.

Our models are crafted to understand and generate natural language effectively. We offer four main models, each designed with different complexities and speeds to meet a variety of needs. Among these options, Davinci emerges as the most robust, while Ada is known for its remarkable speed. The principal GPT-3 models are mainly focused on the text completion endpoint, yet we also provide specific models that are fine-tuned for other endpoints. Not only is Davinci the most advanced in its lineup, but it also performs tasks with minimal direction compared to its counterparts. For tasks that require a nuanced understanding of content, like customized summarization and creative writing, Davinci reliably produces outstanding results. Nevertheless, its superior capabilities come at the cost of requiring more computational power, which leads to higher expenses per API call and slower response times when compared to other models. Consequently, the choice of model should align with the particular demands of the task in question, ensuring optimal performance for the user's needs. Ultimately, understanding the strengths and limitations of each model is essential for achieving the best results.

The fourth iteration of the Generative Pre-trained Transformer, known as GPT-4, is an advanced language model expected to be launched by OpenAI. As the next generation following GPT-3, it is part of the series of models designed for natural language processing and has been built on an extensive dataset of 45TB of text, allowing it to produce and understand language in a way that closely resembles human interaction. Unlike traditional natural language processing models, GPT-4 does not require additional training on specific datasets for particular tasks. It generates responses and creates context solely based on its internal mechanisms. This remarkable capacity enables GPT-4 to perform a wide range of functions, including translation, summarization, answering questions, sentiment analysis, and more, all without the need for specialized training for each task. The model’s ability to handle such a variety of applications underscores its significant potential to influence advancements in artificial intelligence and natural language processing fields. Furthermore, as it continues to evolve, GPT-4 may pave the way for even more sophisticated applications in the future.

The GPT-4 model signifies a remarkable leap in artificial intelligence, functioning as a large multimodal system adept at processing both text and image inputs, while generating text outputs that enable it to address intricate problems with an accuracy that surpasses previous iterations due to its vast general knowledge and superior reasoning abilities. Available through the OpenAI API for subscribers, GPT-4 is tailored for chat-based interactions, akin to gpt-3.5-turbo, and excels in traditional completion tasks via the Chat Completions API. This cutting-edge version of GPT-4 features advancements such as enhanced instruction compliance, a JSON mode, reliable output consistency, and the capability to execute functions in parallel, rendering it an invaluable resource for developers. It is crucial to understand, however, that this preview version is not entirely equipped for high-volume production environments, having a constraint of 4,096 output tokens. Users are invited to delve into its functionalities while remaining aware of its existing restrictions, which may affect their overall experience. The ongoing updates and potential future enhancements promise to further elevate its performance and usability.

GPT-4o, with the "o" symbolizing "omni," marks a notable leap forward in human-computer interaction by supporting a variety of input types, including text, audio, images, and video, and generating outputs in these same formats. It boasts the ability to swiftly process audio inputs, achieving response times as quick as 232 milliseconds, with an average of 320 milliseconds, closely mirroring the natural flow of human conversations. In terms of overall performance, it retains the effectiveness of GPT-4 Turbo for English text and programming tasks, while significantly improving its proficiency in processing text in other languages, all while functioning at a much quicker rate and at a cost that is 50% less through the API. Moreover, GPT-4o demonstrates exceptional skills in understanding both visual and auditory data, outpacing the abilities of earlier models and establishing itself as a formidable asset for multi-modal interactions. This groundbreaking model not only enhances communication efficiency but also expands the potential for diverse applications across various industries. As technology continues to evolve, the implications of such advancements could reshape the future of user interaction in multifaceted ways.

GPT-4.5 marks a substantial leap forward in artificial intelligence, building upon its predecessors by enhancing its unsupervised learning methods, honing its reasoning capabilities, and improving its collaborative functionalities. Designed to better interpret human intentions, this model enables more fluid and instinctive interactions, leading to increased precision and fewer instances of misinformation across a wide range of topics. Its advanced capabilities not only foster the generation of creative and intellectually stimulating content but also aid in tackling complex problems while offering assistance in various domains such as writing, design, and even aerospace endeavors. In addition, the model's improved human engagement opens doors for practical applications, making it more user-friendly and reliable for both businesses and developers. As it continues to innovate, GPT-4.5 establishes a new benchmark for the role of AI in numerous sectors and applications, demonstrating its potential to transform how we approach technology in everyday life. The ongoing developments in this field suggest a promising future where AI can seamlessly integrate into our daily routines and professional tasks.

A streamlined model that excels in both text comprehension and multimodal reasoning abilities. The GPT-4o mini has been crafted to efficiently manage a vast range of tasks, characterized by its affordability and quick response times, which make it particularly suitable for scenarios requiring the simultaneous execution of multiple model calls, such as activating various APIs at once, analyzing large sets of information like complete codebases or lengthy conversation histories, and delivering prompt, real-time text interactions for customer support chatbots. At present, the API for GPT-4o mini supports both textual and visual inputs, with future enhancements planned to incorporate support for text, images, videos, and audio. This model features an impressive context window of 128K tokens and can produce outputs of up to 16K tokens per request, all while maintaining a knowledge base that is updated to October 2023. Furthermore, the advanced tokenizer utilized in GPT-4o enhances its efficiency in handling non-English text, thus expanding its applicability across a wider range of uses. Consequently, the GPT-4o mini is recognized as an adaptable resource for developers and enterprises, making it a valuable asset in various technological endeavors. Its flexibility and efficiency position it as a leader in the evolving landscape of AI-driven solutions.

The o1-pro from OpenAI is a more sophisticated version of the original o1 model, designed to tackle complex and demanding challenges with greater reliability. This enhanced model exhibits significant improvements over the prior o1 preview, achieving an impressive 34% reduction in critical errors and a 50% boost in processing speed. It excels in areas such as mathematics, physics, and programming, providing detailed and accurate solutions. Additionally, the o1-pro can handle multimodal inputs, including both text and images, and demonstrates exceptional skills in complex reasoning tasks that require deep analytical thinking. It is accessible through a ChatGPT Pro subscription, granting users not just unlimited access, but also enhanced functionalities for those in need of advanced AI assistance. With these capabilities, users are empowered to efficiently and effectively tackle a broader array of challenges, making the o1-pro an invaluable tool for problem-solving. Overall, the advancements in this model signify a leap forward in AI technology, offering new possibilities for various applications.

OpenAI has unveiled the o1 series, which heralds a new era of AI models tailored to improve reasoning abilities. This series includes models such as o1-preview and o1-mini, which implement a cutting-edge reinforcement learning strategy that prompts them to invest additional time "thinking" through various challenges prior to providing answers. This approach allows the o1 models to excel in complex problem-solving environments, especially in disciplines like coding, mathematics, and science, where they have demonstrated superiority over previous iterations like GPT-4o in certain benchmarks. The purpose of the o1 series is to tackle issues that require deeper cognitive engagement, marking a significant step forward in developing AI systems that can reason more like humans do. Currently, the series is still in the process of refinement and evaluation, showcasing OpenAI's dedication to the ongoing enhancement of these technologies. As the o1 models evolve, they underscore the promising trajectory of AI, illustrating its capacity to adapt and fulfill increasingly sophisticated requirements in the future. This ongoing innovation signifies a commitment not only to technological advancement but also to addressing real-world challenges with more effective AI solutions.

The o1-mini, developed by OpenAI, represents a cost-effective innovation in AI, focusing on enhanced reasoning skills particularly in STEM fields like math and programming. As part of the o1 series, this model is designed to address complex problems by spending more time on analysis and thoughtful solution development. Despite being smaller and priced at 80% less than the o1-preview model, the o1-mini proves to be quite powerful in handling coding tasks and mathematical reasoning. This effectiveness makes it a desirable option for both developers and businesses looking for dependable AI solutions. Additionally, its economical price point ensures that a broader audience can access and leverage advanced AI technology without sacrificing quality. Overall, the o1-mini stands out as a remarkable tool for those needing efficient support in technical areas.

Experience unmatched privacy and security with the latest version of ChatGPT, which boasts an array of advanced features. 1. The model training process does not incorporate customer data or prompts. 2. Data is protected through robust encryption methods, utilizing AES-256 for storage and TLS 1.2 or higher during transmission. 3. Adherence to SOC 2 standards is maintained for optimal compliance. 4. A user-friendly admin console streamlines the management of multiple members efficiently. 5. Enhanced security measures, including Single Sign-On (SSO) and Domain Verification, are integrated into the platform. 6. An analytics dashboard offers valuable insights into user engagement and activity trends. 7. Users benefit from unrestricted, fast access to GPT-4, along with Advanced Data Analysis capabilities*. 8. With the ability to manage 32k token context windows, users can process significantly longer inputs while preserving context. 9. Easily shareable chat templates promote effective collaboration within teams. 10. This extensive range of features guarantees that your organization operates both efficiently and with a high level of security, fostering a productive working environment. 11. The commitment to user privacy and data protection remains at the forefront of this technology's development.

The next iteration in OpenAI's Generative Pre-trained Transformer series, known as GPT-5, is currently in the works. These sophisticated language models leverage extensive datasets, allowing them to generate text that is not only coherent and realistic but also capable of translating languages, producing diverse creative content, and answering questions with clarity. At this moment, the model is not accessible to the public, and while OpenAI has not confirmed a specific release date, many speculate that it may debut in 2024. This new version is expected to surpass its predecessor, GPT-4, which has already demonstrated the ability to create human-like text, translate languages, and generate a variety of creative works. Anticipations for GPT-5 include not only enhanced reasoning capabilities and improved factual accuracy but also a greater adherence to user commands, making it a highly awaited development in AI technology. Ultimately, the progression towards GPT-5 signifies a significant advancement in the realm of AI language processing, promising to elevate how these models interact with users and fulfill their requests. As innovation in this field continues, the implications of such advancements could reshape our understanding of artificial intelligence and its applications in various sectors.

OpenAI o3 represents a state-of-the-art AI model designed to enhance reasoning skills by breaking down intricate tasks into simpler, more manageable pieces. It demonstrates significant improvements over previous AI iterations, especially in domains such as programming, competitive coding challenges, and excelling in mathematical and scientific evaluations. OpenAI o3 is available for public use, thereby enabling sophisticated AI-driven problem-solving and informed decision-making. The model utilizes deliberative alignment techniques to ensure that its outputs comply with established safety and ethical guidelines, making it an essential tool for developers, researchers, and enterprises looking to explore groundbreaking AI innovations. With its advanced features, OpenAI o3 is poised to transform the landscape of artificial intelligence applications across a wide range of sectors, paving the way for future developments and enhancements. Its impact on the industry could lead to even more refined AI capabilities in the years to come.

The o3-mini, developed by OpenAI, is a refined version of the advanced o3 AI model, providing powerful reasoning capabilities in a more compact and accessible design. It excels at breaking down complex instructions into manageable steps, making it especially proficient in areas such as coding, competitive programming, and solving mathematical and scientific problems. Despite its smaller size, this model retains the same high standards of accuracy and logical reasoning found in its larger counterpart, all while requiring fewer computational resources, which is a significant benefit in settings with limited capabilities. Additionally, o3-mini features built-in deliberative alignment, which fosters safe, ethical, and context-aware decision-making processes. Its adaptability renders it an essential tool for developers, researchers, and businesses aiming for an ideal balance of performance and efficiency in their endeavors. As the demand for AI-driven solutions continues to grow, the o3-mini stands out as a crucial asset in this rapidly evolving landscape, offering both innovation and practicality to its users.

The o4-mini model, a refined version of the o3, was engineered to offer enhanced reasoning abilities and improved efficiency. Designed for tasks requiring intricate problem-solving, it stands out for its ability to handle complex challenges with precision. This model offers a streamlined alternative to the o3, delivering similar capabilities while being more resource-efficient. OpenAI's commitment to pushing the boundaries of AI technology is evident in the o4-mini’s performance, making it a valuable tool for a wide range of applications. As part of a broader strategy, the o4-mini serves as an important step in refining OpenAI's portfolio before the release of GPT-5. Its optimized design positions it as a go-to solution for users seeking faster, more intelligent AI models.

The o3-mini-high model created by OpenAI significantly boosts the reasoning capabilities of artificial intelligence, particularly in deep problem-solving across diverse fields such as programming, mathematics, and complex tasks. It features adaptive thinking time and offers users the choice of different reasoning modes—low, medium, and high—to customize performance according to task difficulty. Notably, it outperforms the o1 series by an impressive 200 Elo points on Codeforces, demonstrating exceptional efficiency at a lower cost while maintaining speed and accuracy in its functions. As a distinguished addition to the o3 lineup, this model not only pushes the boundaries of AI problem-solving but also prioritizes user experience by providing a free tier and enhanced limits for Plus subscribers, which increases accessibility to advanced AI tools. Its innovative architecture makes it a vital resource for individuals aiming to address difficult challenges with greater support and flexibility, ultimately enriching the problem-solving landscape. Furthermore, the user-centric approach ensures that a wide range of users can benefit from its capabilities, making it a versatile solution for different needs.