Best AI Models with a Free Trial of 2025

Vertex AI provides organizations with a range of pre-trained and customizable AI models suitable for diverse applications, including natural language processing and image analysis. These models leverage the latest breakthroughs in machine learning technology and can be adapted to fit unique business needs. With versatile tools for model creation and deployment, Vertex AI allows companies to seamlessly incorporate AI into their workflows. New users are welcomed with $300 worth of free credits, enabling them to investigate various AI models and tailor them to their requirements. The comprehensive selection of models in Vertex AI serves as a robust starting point for businesses to adopt advanced AI solutions and foster innovation.

LM-Kit.NET now empowers your .NET applications to operate the most recent open models directly on your device. This includes advanced models such as Meta Llama 4, DeepSeek V3-0324, Microsoft Phi 4 (along with its mini and multimodal versions), Mistral Mixtral 8x22B, Google Gemma 3, and Alibaba Qwen 2.5 VL. By doing this, you can achieve state-of-the-art capabilities in language processing, vision, and audio without relying on any external services. For easy integration of new models, a regularly updated catalog complete with setup guides and quantized versions is accessible at docs.lm-kit.com/lm-kit-net/guides/getting-started/model-catalog.html. This ensures that you can quickly adopt the latest releases while maintaining low latency and ensuring the complete privacy of your data.

Our models are designed to comprehend and produce natural language effectively. We provide four primary models, each tailored for varying levels of complexity and speed to address diverse tasks. Among these, Davinci stands out as the most powerful, while Ada excels in speed. The core GPT-3 models are primarily intended for use with the text completion endpoint, but we also have specific models optimized for alternative endpoints. Davinci is not only the most capable within its family but also adept at executing tasks with less guidance compared to its peers. For scenarios that demand deep content understanding, such as tailored summarization and creative writing, Davinci consistently delivers superior outcomes. However, its enhanced capabilities necessitate greater computational resources, resulting in higher costs per API call and slower response times compared to other models. Overall, selecting the appropriate model depends on the specific requirements of the task at hand.

GPT-4, or Generative Pre-trained Transformer 4, is a highly advanced unsupervised language model that is anticipated for release by OpenAI. As the successor to GPT-3, it belongs to the GPT-n series of natural language processing models and was developed using an extensive dataset comprising 45TB of text, enabling it to generate and comprehend text in a manner akin to human communication. Distinct from many conventional NLP models, GPT-4 operates without the need for additional training data tailored to specific tasks. It is capable of generating text or responding to inquiries by utilizing only the context it creates internally. Demonstrating remarkable versatility, GPT-4 can adeptly tackle a diverse array of tasks such as translation, summarization, question answering, sentiment analysis, and more, all without any dedicated task-specific training. This ability to perform such varied functions further highlights its potential impact on the field of artificial intelligence and natural language processing.

The GPT-3.5 series represents an advancement in OpenAI's large language models, building on the capabilities of its predecessor, GPT-3. These models excel at comprehending and producing human-like text, with four primary variations designed for various applications. The core GPT-3.5 models are intended to be utilized through the text completion endpoint, while additional models are optimized for different endpoint functionalities. Among these, the Davinci model family stands out as the most powerful, capable of executing any task that the other models can handle, often requiring less detailed input. For tasks that demand a deep understanding of context, such as tailoring summaries for specific audiences or generating creative content, the Davinci model tends to yield superior outcomes. However, this enhanced capability comes at a cost, as Davinci requires more computing resources, making it pricier for API usage and slower compared to its counterparts. Overall, the advancements in GPT-3.5 not only improve performance but also expand the range of potential applications.

The GPT-4 model represents a significant advancement in AI, being a large multimodal system capable of handling both text and image inputs while producing text outputs, which allows it to tackle complex challenges with a level of precision unmatched by earlier models due to its extensive general knowledge and enhanced reasoning skills. Accessible through the OpenAI API for subscribers, GPT-4 is also designed for chat interactions, similar to gpt-3.5-turbo, while proving effective for conventional completion tasks via the Chat Completions API. This state-of-the-art version of GPT-4 boasts improved features such as better adherence to instructions, JSON mode, consistent output generation, and the ability to call functions in parallel, making it a versatile tool for developers. However, it is important to note that this preview version is not fully prepared for high-volume production use, as it has a limit of 4,096 output tokens. Users are encouraged to explore its capabilities while keeping in mind its current limitations.

Gemini Advanced represents a state-of-the-art AI model that excels in natural language comprehension, generation, and problem-solving across a variety of fields. With its innovative neural architecture, it provides remarkable accuracy, sophisticated contextual understanding, and profound reasoning abilities. This advanced system is purpose-built to tackle intricate and layered tasks, which include generating comprehensive technical documentation, coding, performing exhaustive data analysis, and delivering strategic perspectives. Its flexibility and ability to scale make it an invaluable resource for both individual practitioners and large organizations. By establishing a new benchmark for intelligence, creativity, and dependability in AI-driven solutions, Gemini Advanced is set to transform various industries. Additionally, users will gain access to Gemini in platforms like Gmail and Docs, along with 2 TB of storage and other perks from Google One, enhancing overall productivity. Furthermore, Gemini Advanced facilitates access to Gemini with Deep Research, enabling users to engage in thorough and instantaneous research on virtually any topic.

BLACKBOX AI is a powerful AI-driven platform that revolutionizes software development by providing a fully integrated AI Coding Agent with unique features such as voice interaction, direct GPU access, and remote parallel task processing. It simplifies complex coding tasks by converting Figma designs into production-ready code and transforming images into web apps with minimal manual effort. The platform supports seamless screen sharing within popular IDEs like VSCode, enhancing developer collaboration. Users can manage GitHub repositories remotely, running coding tasks entirely in the cloud for scalability and efficiency. BLACKBOX AI also enables app development with embedded PDF context, allowing the AI agent to understand and build around complex document data. Its image generation and editing tools offer creative flexibility alongside development features. The platform supports mobile device access, ensuring developers can work from anywhere. BLACKBOX AI aims to speed up the entire development lifecycle with automation and AI-enhanced workflows.

GPT-4.5 represents a significant advancement in AI technology, building on previous models by expanding its unsupervised learning techniques, refining its reasoning skills, and enhancing its collaborative features. This model is crafted to better comprehend human intentions and engage in more natural and intuitive interactions, resulting in greater accuracy and reduced hallucination occurrences across various subjects. Its sophisticated functions allow for the creation of imaginative and thought-provoking content, facilitate the resolution of intricate challenges, and provide support in various fields such as writing, design, and even space exploration. Furthermore, the model's enhanced ability to interact with humans paves the way for practical uses, ensuring that it is both more accessible and dependable for businesses and developers alike. By continually evolving, GPT-4.5 sets a new standard for how AI can assist in diverse applications and industries.

Grok 3 DeepSearch represents a sophisticated research agent and model aimed at enhancing the reasoning and problem-solving skills of artificial intelligence, emphasizing deep search methodologies and iterative reasoning processes. In contrast to conventional models that depend primarily on pre-existing knowledge, Grok 3 DeepSearch is equipped to navigate various pathways, evaluate hypotheses, and rectify inaccuracies in real-time, drawing from extensive datasets while engaging in logical, chain-of-thought reasoning. Its design is particularly suited for tasks necessitating critical analysis, including challenging mathematical equations, programming obstacles, and detailed academic explorations. As a state-of-the-art AI instrument, Grok 3 DeepSearch excels in delivering precise and comprehensive solutions through its distinctive deep search functionalities, rendering it valuable across both scientific and artistic disciplines. This innovative tool not only streamlines problem-solving but also fosters a deeper understanding of complex concepts.

Gemini Deep Research, developed by Google, is an AI-driven platform aimed at helping individuals perform in-depth research across the web. Utilizing sophisticated reasoning and a broad understanding of context, it functions as a virtual research assistant, tackling intricate subjects and generating thorough reports for the user. When a user submits a research inquiry, the system independently traverses numerous steps, collecting relevant data from a variety of online resources. The final report encapsulates essential insights and includes links to the original materials, enabling users to explore specific topics more thoroughly. This innovative tool is currently accessible to Gemini Advanced subscribers, significantly boosting their capacity to efficiently collect and synthesize valuable information. By streamlining the research process, it empowers users to gain deeper insights with less effort.

Gemini-Exp-1206 is a new experimental AI model that is currently being offered for preview exclusively to Gemini Advanced subscribers. This model boasts improved capabilities in handling intricate tasks, including programming, mathematical calculations, logical reasoning, and adhering to comprehensive instructions. Its primary aim is to provide users with enhanced support when tackling complex challenges. As this is an early preview, users may encounter some features that do not operate perfectly, and the model is also without access to real-time data. Access to Gemini-Exp-1206 can be obtained via the Gemini model drop-down menu on both desktop and mobile web platforms, allowing users to experience its advanced functionalities firsthand.

Grok Code Fast 1 introduces a new class of coding-focused AI models that prioritize responsiveness, affordability, and real-world usability. Tailored for agentic coding platforms, it eliminates the lag developers often experience with reasoning loops and tool calls, creating a smoother workflow in IDEs. Its architecture was trained on a carefully curated mix of programming content and fine-tuned on real pull requests to reflect authentic development practices. With proficiency across multiple languages, including Python, Rust, TypeScript, C++, Java, and Go, it adapts to full-stack development scenarios. Grok Code Fast 1 excels in speed, processing nearly 190 tokens per second while maintaining reliable performance across bug fixes, code reviews, and project generation. Pricing makes it widely accessible at $0.20 per million input tokens, $1.50 per million output tokens, and just $0.02 for cached inputs. Early testers, including GitHub Copilot and Cursor users, praise its responsiveness and quality. For developers seeking a reliable coding assistant that’s both fast and cost-effective, Grok Code Fast 1 is a daily driver built for practical software engineering needs.

Gen-2: Advancing the Frontier of Generative AI. This innovative multi-modal AI platform is capable of creating original videos from text, images, or existing video segments. It can accurately and consistently produce new video content by either adapting the composition and style of a source image or text prompt to the framework of an existing video (Video to Video), or by solely using textual descriptions (Text to Video). This process allows for the creation of new visual narratives without the need for actual filming. User studies indicate that Gen-2's outputs are favored over traditional techniques for both image-to-image and video-to-video transformation, showcasing its superiority in the field. Furthermore, its ability to seamlessly blend creativity and technology marks a significant leap forward in generative AI capabilities.

We are excited to introduce Jurassic-2, the newest iteration of AI21 Studio's foundation models, which represents a major advancement in artificial intelligence, boasting exceptional quality and innovative features. In addition to this, we are unveiling our tailored APIs that offer seamless reading and writing functionalities, surpassing those of our rivals. At AI21 Studio, our mission is to empower developers and businesses to harness the potential of reading and writing AI, facilitating the creation of impactful real-world applications. Today signifies a pivotal moment with the launch of Jurassic-2 and our Task-Specific APIs, enabling you to effectively implement generative AI in production settings. Known informally as J2, Jurassic-2 showcases remarkable enhancements in quality, including advanced zero-shot instruction-following, minimized latency, and support for multiple languages. Furthermore, our specialized APIs are designed to provide developers with top-tier tools that excel in executing specific reading and writing tasks effortlessly, ensuring you have everything needed to succeed in your projects. Together, these advancements set a new standard in the AI landscape, paving the way for innovative solutions.

Our systems are globally implemented to ensure optimal response times for users everywhere. You can easily incorporate our OpenAI-compatible API into your application with minimal effort. Start the integration process in mere minutes and efficiently scale it to accommodate millions of users. Take advantage of our extensive scaling capabilities and performance enhancements, which allow our API to be four times more cost-effective than the OpenAI GPT-3.5 API. Experience the ability to generate text and engage in conversations with our AI model, which provides ChatGPT-level performance while being significantly more affordable. Getting started is a quick process, requiring only a few minutes with our API. Additionally, tap into the capabilities of one of the most advanced AI image models to produce breathtaking, high-quality images, graphics, and illustrations in just seconds, revolutionizing your creative projects. This approach not only streamlines your workflow but also enhances your overall productivity in content creation.

Discover JinaChat, an innovative LLM service designed specifically for professional users. This platform heralds a transformative phase in multimodal chat functionality, seamlessly integrating not just text but also images and additional media. Enjoy our complimentary short interactions, limited to 100 tokens, which provide a taste of what we offer. With our robust API, developers can utilize extensive conversation histories, significantly reducing the need for repetitive prompts and facilitating the creation of intricate applications. Step into the future of LLM solutions with JinaChat, where interactions are rich, memory-driven, and cost-effective. Many modern LLM applications rely heavily on lengthy prompts or vast memory, which can lead to elevated costs when similar requests are repeatedly sent to the server with only slight modifications. However, JinaChat's API effectively addresses this issue by allowing you to continue previous conversations without the necessity of resending the entire message. This innovation not only streamlines communication but also leads to significant savings, making it an ideal resource for crafting sophisticated applications such as AutoGPT. By simplifying the process, JinaChat empowers developers to focus on creativity and functionality without the burden of excessive costs.

Palmyra represents a collection of Large Language Models (LLMs) specifically designed to deliver accurate and reliable outcomes in business settings. These models shine in various applications, including answering questions, analyzing images, and supporting more than 30 languages, with options for fine-tuning tailored to sectors such as healthcare and finance. Remarkably, the Palmyra models have secured top positions in notable benchmarks such as Stanford HELM and PubMedQA, with Palmyra-Fin being the first to successfully clear the CFA Level III examination. Writer emphasizes data security by refraining from utilizing client data for training or model adjustments, adhering to a strict zero data retention policy. The Palmyra suite features specialized models, including Palmyra X 004, which boasts tool-calling functionalities; Palmyra Med, created specifically for the healthcare industry; Palmyra Fin, focused on financial applications; and Palmyra Vision, which delivers sophisticated image and video processing capabilities. These advanced models are accessible via Writer's comprehensive generative AI platform, which incorporates graph-based Retrieval Augmented Generation (RAG) for enhanced functionality. With continual advancements and improvements, Palmyra aims to redefine the landscape of enterprise-level AI solutions.

Ray2 represents a cutting-edge video generation model that excels at producing lifelike visuals combined with fluid, coherent motion. Its proficiency in interpreting text prompts is impressive, and it can also process images and videos as inputs. This advanced model has been developed using Luma’s innovative multi-modal architecture, which has been enhanced to provide ten times the computational power of its predecessor, Ray1. With Ray2, we are witnessing the dawn of a new era in video generation technology, characterized by rapid, coherent movement, exquisite detail, and logical narrative progression. These enhancements significantly boost the viability of the generated content, resulting in videos that are far more suitable for production purposes. Currently, Ray2 offers text-to-video generation capabilities, with plans to introduce image-to-video, video-to-video, and editing features in the near future. The model elevates the quality of motion fidelity to unprecedented heights, delivering smooth, cinematic experiences that are truly awe-inspiring. Transform your creative ideas into stunning visual narratives, and let Ray2 help you create mesmerizing scenes with accurate camera movements that bring your story to life. In this way, Ray2 empowers users to express their artistic vision like never before.

Zyphra is thrilled to unveil the beta release of Zonos-v0.1, which boasts two sophisticated and real-time text-to-speech models that include high-fidelity voice cloning capabilities. Our release features both a 1.6B transformer and a 1.6B hybrid model, all under the Apache 2.0 license. Given the challenges in quantitatively assessing audio quality, we believe that the generation quality produced by Zonos is on par with or even surpasses that of top proprietary TTS models currently available. Additionally, we are confident that making models of this quality publicly accessible will greatly propel advancements in TTS research. You can find the Zonos model weights on Huggingface, with sample inference code available on our GitHub repository. Furthermore, Zonos can be utilized via our model playground and API, which offers straightforward and competitive flat-rate pricing options. To illustrate the performance of Zonos, we have prepared a variety of sample comparisons between Zonos and existing proprietary models, highlighting its capabilities. This initiative emphasizes our commitment to fostering innovation in the field of text-to-speech technology.

Perplexity Research is a sophisticated AI-based platform tailored for conducting in-depth investigations across diverse and intricate topics. By mimicking human research methodologies, it systematically explores, reads, and assesses various documents, continuously refining its strategy to gain a thorough insight into the subject matter. After finalizing its research, Deep Research compiles the collected data into organized, comprehensive reports that users can conveniently export as PDFs or share as web pages. This tool proves to be highly effective in multiple fields such as finance, marketing, technology, health, and travel planning, allowing users to undertake professional-grade research with remarkable efficiency. Currently, Deep Research is available online, with future plans to expand its reach to iOS, Android, and Mac systems, and it offers free access with unlimited queries for Pro subscribers while limiting the daily responses for non-subscribers. Additionally, the user-friendly interface ensures that even those with minimal experience can easily navigate the platform and benefit from its advanced features.

Perplexity has unveiled a new and improved AI search engine called Sonar, which is based on the Llama 3.3 70B model. This iteration of Sonar has received further training aimed at boosting the accuracy of facts and the clarity of responses in the standard search mode offered by Perplexity. The goal of these enhancements is to provide users with more accurate and easily understandable answers, all while preserving the platform's renowned speed and efficiency. Additionally, Sonar features capabilities for real-time, expansive web research and question-answering, which developers can seamlessly incorporate into their applications via an API that is both lightweight and cost-effective. Furthermore, the Sonar API accommodates advanced models such as sonar-reasoning-pro and sonar-pro, specifically designed to tackle intricate tasks that necessitate a profound understanding and retention of context. These sophisticated models are capable of delivering more comprehensive answers, offering an average of twice the citations compared to earlier versions, thus significantly improving the transparency and dependability of the information presented. With these updates, Sonar positions itself as a leader in providing users with high-quality search experiences.

Ray3, developed by Luma Labs, is a cutting-edge video generation tool designed to empower creators in crafting visually compelling narratives with professional-grade quality. This innovative model allows for the production of native 16-bit High Dynamic Range (HDR) videos, which results in enhanced color vibrancy, richer contrasts, and a streamlined workflow akin to those found in high-end studios. It leverages advanced physics and ensures greater consistency in elements such as motion, lighting, and reflections, while also offering users visual controls to refine their projects. Additionally, Ray3 features a draft mode that facilitates rapid exploration of concepts, which can later be refined into stunning 4K HDR outputs. The model is adept at interpreting prompts with subtlety, reasoning about creative intent, and conducting early self-evaluations of drafts to make necessary adjustments for more precise scene and motion representation. Moreover, it includes capabilities such as keyframe support, looping and extending functions, upscaling options, and the ability to export frames, making it an invaluable asset for seamless integration into professional creative processes. By harnessing these features, creators can elevate their storytelling through dynamic visual experiences that resonate with their audiences.

MiniMax M2 is an open-source foundational model tailored for agent-driven applications and coding tasks, achieving an innovative equilibrium of efficiency, velocity, and affordability. It shines in comprehensive development environments, adeptly managing programming tasks, invoking tools, and executing intricate, multi-step processes, complete with features like Python integration, while offering impressive inference speeds of approximately 100 tokens per second and competitive API pricing at around 8% of similar proprietary models. The model includes a "Lightning Mode" designed for rapid, streamlined agent operations, alongside a "Pro Mode" aimed at thorough full-stack development, report creation, and the orchestration of web-based tools; its weights are entirely open source, allowing for local deployment via vLLM or SGLang. MiniMax M2 stands out as a model ready for production use, empowering agents to autonomously perform tasks such as data analysis, software development, tool orchestration, and implementing large-scale, multi-step logic across real organizational contexts. With its advanced capabilities, this model is poised to revolutionize the way developers approach complex programming challenges.

John Snow Labs has developed a sophisticated large language model (LLM) specifically for the medical field, aimed at transforming how healthcare organizations utilize artificial intelligence. This groundbreaking platform is designed exclusively for healthcare professionals, merging state-of-the-art natural language processing (NLP) abilities with an in-depth comprehension of medical language, clinical processes, and compliance standards. Consequently, it serves as an essential resource that empowers healthcare providers, researchers, and administrators to gain valuable insights, enhance patient care, and increase operational effectiveness. Central to the Healthcare LLM is its extensive training on a diverse array of healthcare-related materials, which includes clinical notes, academic research, and regulatory texts. This targeted training equips the model to proficiently understand and produce medical language, making it a crucial tool for various applications such as clinical documentation, automated coding processes, and medical research initiatives. Furthermore, its capabilities extend to streamlining workflows, thereby allowing healthcare professionals to focus more on patient care rather than administrative tasks.