Best Free LLM API Providers of 2025

Fully managed ML tools allow you to build, deploy and scale machine-learning (ML) models quickly, for any use case. Vertex AI Workbench is natively integrated with BigQuery Dataproc and Spark. You can use BigQuery to create and execute machine-learning models in BigQuery by using standard SQL queries and spreadsheets or you can export datasets directly from BigQuery into Vertex AI Workbench to run your models there. Vertex Data Labeling can be used to create highly accurate labels for data collection. Vertex AI Agent Builder empowers developers to design and deploy advanced generative AI applications for enterprise use. It supports both no-code and code-driven development, enabling users to create AI agents through natural language prompts or by integrating with frameworks like LangChain and LlamaIndex.

Perplexity AI is a fast-answer search engine accessible for free via its website perplexity.at, as well as through desktop apps and mobile devices on iPhone and Android. This innovative search platform leverages large language models to deliver precise and context-aware responses to a wide range of questions. Built to handle both broad and detailed queries, Perplexity AI combines artificial intelligence with live search functionality to gather and summarize information from multiple sources. Emphasizing user-friendliness and transparency, it frequently includes citations or direct links to its reference materials. Its mission is to simplify the information-gathering process while ensuring responses are clear, accurate, and reliable—making it an essential resource for researchers and professionals alike.

Gemini, an innovative AI chatbot from Google, aims to boost creativity and productivity through engaging conversations in natural language. Available on both web and mobile platforms, it works harmoniously with multiple Google services like Docs, Drive, and Gmail, allowing users to create content, condense information, and handle tasks effectively. With its multimodal abilities, Gemini can analyze and produce various forms of data, including text, images, and audio, which enables it to deliver thorough support in numerous scenarios. As it continually learns from user engagement, Gemini customizes its responses to provide personalized and context-sensitive assistance, catering to diverse user requirements. Moreover, this adaptability ensures that it evolves alongside its users, making it a valuable tool for anyone looking to enhance their workflow and creativity.

DeepSeek stands out as a state-of-the-art AI assistant, leveraging the sophisticated DeepSeek-V3 model that boasts an impressive 600 billion parameters for superior performance. Created to rival leading AI systems globally, it delivers rapid responses alongside an extensive array of features aimed at enhancing daily tasks' efficiency and simplicity. Accessible on various platforms, including iOS, Android, and web, DeepSeek guarantees that users can connect from virtually anywhere. The application offers support for numerous languages and is consistently updated to enhance its capabilities, introduce new language options, and fix any issues. Praised for its smooth functionality and adaptability, DeepSeek has received enthusiastic reviews from a diverse user base around the globe. Furthermore, its commitment to user satisfaction and continuous improvement ensures that it remains at the forefront of AI technology.

Mistral AI stands out as an innovative startup in the realm of artificial intelligence, focusing on open-source generative solutions. The company provides a diverse array of customizable, enterprise-level AI offerings that can be implemented on various platforms, such as on-premises, cloud, edge, and devices. Among its key products are "Le Chat," a multilingual AI assistant aimed at boosting productivity in both personal and professional settings, and "La Plateforme," a platform for developers that facilitates the creation and deployment of AI-driven applications. With a strong commitment to transparency and cutting-edge innovation, Mistral AI has established itself as a prominent independent AI laboratory, actively contributing to the advancement of open-source AI and influencing policy discussions. Their dedication to fostering an open AI ecosystem underscores their role as a thought leader in the industry.

Cohere is a robust enterprise AI platform that empowers developers and organizations to create advanced applications leveraging language technologies. With a focus on large language models (LLMs), Cohere offers innovative solutions for tasks such as text generation, summarization, and semantic search capabilities. The platform features the Command family designed for superior performance in language tasks, alongside Aya Expanse, which supports multilingual functionalities across 23 different languages. Emphasizing security and adaptability, Cohere facilitates deployment options that span major cloud providers, private cloud infrastructures, or on-premises configurations to cater to a wide array of enterprise requirements. The company partners with influential industry players like Oracle and Salesforce, striving to weave generative AI into business applications, thus enhancing automation processes and customer interactions. Furthermore, Cohere For AI, its dedicated research lab, is committed to pushing the boundaries of machine learning via open-source initiatives and fostering a collaborative global research ecosystem. This commitment to innovation not only strengthens their technology but also contributes to the broader AI landscape.

Claude represents a sophisticated artificial intelligence language model capable of understanding and producing text that resembles human communication. Anthropic is an organization dedicated to AI safety and research, aiming to develop AI systems that are not only dependable and understandable but also controllable. While contemporary large-scale AI systems offer considerable advantages, they also present challenges such as unpredictability and lack of transparency; thus, our mission is to address these concerns. Currently, our primary emphasis lies in advancing research to tackle these issues effectively; however, we anticipate numerous opportunities in the future where our efforts could yield both commercial value and societal benefits. As we continue our journey, we remain committed to enhancing the safety and usability of AI technologies.

Qwen LLM represents a collection of advanced large language models created by Alibaba Cloud's Damo Academy. These models leverage an extensive dataset comprising text and code, enabling them to produce human-like text, facilitate language translation, craft various forms of creative content, and provide informative answers to queries. Key attributes of Qwen LLMs include: A range of sizes: The Qwen series features models with parameters varying from 1.8 billion to 72 billion, catering to diverse performance requirements and applications. Open source availability: Certain versions of Qwen are open-source, allowing users to access and modify the underlying code as needed. Multilingual capabilities: Qwen is equipped to comprehend and translate several languages, including English, Chinese, and French. Versatile functionalities: In addition to language generation and translation, Qwen models excel in tasks such as answering questions, summarizing texts, and generating code, making them highly adaptable tools for various applications. Overall, the Qwen LLM family stands out for its extensive capabilities and flexibility in meeting user needs.

Hugging Face is an AI community platform that provides state-of-the-art machine learning models, datasets, and APIs to help developers build intelligent applications. The platform’s extensive repository includes models for text generation, image recognition, and other advanced machine learning tasks. Hugging Face’s open-source ecosystem, with tools like Transformers and Tokenizers, empowers both individuals and enterprises to build, train, and deploy machine learning solutions at scale. It offers integration with major frameworks like TensorFlow and PyTorch for streamlined model development.

Replicate is a comprehensive platform designed to help developers and businesses seamlessly run, fine-tune, and deploy machine learning models with just a few lines of code. It hosts thousands of community-contributed models that support diverse use cases such as image and video generation, speech synthesis, music creation, and text generation. Users can enhance model performance by fine-tuning models with their own datasets, enabling highly specialized AI applications. The platform supports custom model deployment through Cog, an open-source tool that automates packaging and deployment on cloud infrastructure while managing scaling transparently. Replicate’s pricing model is usage-based, ensuring customers pay only for the compute time they consume, with support for a variety of GPU and CPU options. The system provides built-in monitoring and logging capabilities to track model performance and troubleshoot predictions. Major companies like Buzzfeed, Unsplash, and Character.ai use Replicate to power their AI features. Replicate’s goal is to democratize access to scalable, production-ready machine learning infrastructure, making AI deployment accessible even to non-experts.

AI21 Studio offers API access to its Jurassic-1 large language models, which enable robust text generation and understanding across numerous live applications. Tackle any language-related challenge with ease, as our Jurassic-1 models are designed to understand natural language instructions and can quickly adapt to new tasks with minimal examples. Leverage our targeted APIs for essential functions such as summarizing and paraphrasing, allowing you to achieve high-quality outcomes at a competitive price without starting from scratch. If you need to customize a model, fine-tuning is just three clicks away, with training that is both rapid and cost-effective, ensuring that your models are deployed without delay. Enhance your applications by integrating an AI co-writer to provide your users with exceptional capabilities. Boost user engagement and success with features that include long-form draft creation, paraphrasing, content repurposing, and personalized auto-completion options, ultimately enriching the overall user experience. Your application can become a powerful tool in the hands of every user.

Delve into the diverse range of AI APIs specifically crafted for applications involving images, videos, audio, and large language models (LLMs). Novita AI aims to enhance your AI-focused business in line with technological advancements by providing comprehensive solutions for model hosting and training. With access to over 100 APIs, you can leverage AI capabilities for image creation and editing, utilizing more than 10,000 models, alongside APIs dedicated to training custom models. Benefit from an affordable pay-as-you-go pricing model that eliminates the need for GPU maintenance, allowing you to concentrate on developing your products. Generate stunning images in just 2 seconds using any of the 10,000+ models with a simple click. Stay current with the latest model updates from platforms like Civitai and Hugging Face. The Novita API facilitates the development of a vast array of products, enabling you to integrate its features seamlessly and empower your own offerings in no time. This ensures that your business remains competitive and innovative in a fast-evolving landscape.

Grok is an artificial intelligence inspired by the Hitchhiker’s Guide to the Galaxy, aiming to respond to a wide array of inquiries while also prompting users with thought-provoking questions. With a knack for delivering responses infused with humor and a bit of irreverence, Grok is not the right choice for those who dislike a lighthearted approach. A distinctive feature of Grok is its ability to access real-time information through the 𝕏 platform, allowing it to tackle bold and unconventional questions that many other AI systems might shy away from. This capability not only enhances its versatility but also ensures that users receive answers that are both timely and engaging.

Fireworks collaborates with top generative AI researchers to provide the most efficient models at unparalleled speeds. It has been independently assessed and recognized as the fastest among all inference providers. You can leverage powerful models specifically selected by Fireworks, as well as our specialized multi-modal and function-calling models developed in-house. As the second most utilized open-source model provider, Fireworks impressively generates over a million images each day. Our API, which is compatible with OpenAI, simplifies the process of starting your projects with Fireworks. We ensure dedicated deployments for your models, guaranteeing both uptime and swift performance. Fireworks takes pride in its compliance with HIPAA and SOC2 standards while also providing secure VPC and VPN connectivity. You can meet your requirements for data privacy, as you retain ownership of your data and models. With Fireworks, serverless models are seamlessly hosted, eliminating the need for hardware configuration or model deployment. In addition to its rapid performance, Fireworks.ai is committed to enhancing your experience in serving generative AI models effectively. Ultimately, Fireworks stands out as a reliable partner for innovative AI solutions.

Parasail is a network designed for deploying AI that offers scalable and cost-effective access to high-performance GPUs tailored for various AI tasks. It features three main services: serverless endpoints for real-time inference, dedicated instances for private model deployment, and batch processing for extensive task management. Users can either deploy open-source models like DeepSeek R1, LLaMA, and Qwen, or utilize their own models, with the platform’s permutation engine optimally aligning workloads with hardware, which includes NVIDIA’s H100, H200, A100, and 4090 GPUs. The emphasis on swift deployment allows users to scale from a single GPU to large clusters in just minutes, providing substantial cost savings, with claims of being up to 30 times more affordable than traditional cloud services. Furthermore, Parasail boasts day-zero availability for new models and features a self-service interface that avoids long-term contracts and vendor lock-in, enhancing user flexibility and control. This combination of features makes Parasail an attractive choice for those looking to leverage high-performance AI capabilities without the usual constraints of cloud computing.

FriendliAI serves as an advanced generative AI infrastructure platform that delivers rapid, efficient, and dependable inference solutions tailored for production settings. The platform is equipped with an array of tools and services aimed at refining the deployment and operation of large language models (LLMs) alongside various generative AI tasks on a large scale. Among its key features is Friendli Endpoints, which empowers users to create and implement custom generative AI models, thereby reducing GPU expenses and hastening AI inference processes. Additionally, it facilitates smooth integration with well-known open-source models available on the Hugging Face Hub, ensuring exceptionally fast and high-performance inference capabilities. FriendliAI incorporates state-of-the-art technologies, including Iteration Batching, the Friendli DNN Library, Friendli TCache, and Native Quantization, all of which lead to impressive cost reductions (ranging from 50% to 90%), a significant decrease in GPU demands (up to 6 times fewer GPUs), enhanced throughput (up to 10.7 times), and a marked decrease in latency (up to 6.2 times). With its innovative approach, FriendliAI positions itself as a key player in the evolving landscape of generative AI solutions.

Kluster.ai is an AI cloud platform tailored for developers, enabling quick deployment, scaling, and fine-tuning of large language models (LLMs) with remarkable efficiency. Crafted by developers with a focus on developer needs, it features Adaptive Inference, a versatile service that dynamically adjusts to varying workload demands, guaranteeing optimal processing performance and reliable turnaround times. This Adaptive Inference service includes three unique processing modes: real-time inference for tasks requiring minimal latency, asynchronous inference for budget-friendly management of tasks with flexible timing, and batch inference for the streamlined processing of large volumes of data. It accommodates an array of innovative multimodal models for various applications such as chat, vision, and coding, featuring models like Meta's Llama 4 Maverick and Scout, Qwen3-235B-A22B, DeepSeek-R1, and Gemma 3. Additionally, Kluster.ai provides an OpenAI-compatible API, simplifying the integration of these advanced models into developers' applications, and thereby enhancing their overall capabilities. This platform ultimately empowers developers to harness the full potential of AI technologies in their projects.

MiniMax is a next-generation AI company focused on providing AI-driven tools for content creation across various media types. Their suite of products includes MiniMax Chat for advanced conversational AI, Hailuo AI for cinematic video production, and MiniMax Audio for high-quality speech generation. Additionally, they offer models for music creation and image generation, helping users innovate with minimal resources. MiniMax's cutting-edge AI models, including their text, image, video, and audio solutions, are built to be cost-effective while delivering superior performance. The platform is aimed at creatives, businesses, and developers looking to integrate AI into their workflows for enhanced content production.

The Databricks Data Intelligence Platform empowers every member of your organization to leverage data and artificial intelligence effectively. Constructed on a lakehouse architecture, it establishes a cohesive and transparent foundation for all aspects of data management and governance, enhanced by a Data Intelligence Engine that recognizes the distinct characteristics of your data. Companies that excel across various sectors will be those that harness the power of data and AI. Covering everything from ETL processes to data warehousing and generative AI, Databricks facilitates the streamlining and acceleration of your data and AI objectives. By merging generative AI with the integrative advantages of a lakehouse, Databricks fuels a Data Intelligence Engine that comprehends the specific semantics of your data. This functionality enables the platform to optimize performance automatically and manage infrastructure in a manner tailored to your organization's needs. Additionally, the Data Intelligence Engine is designed to grasp the unique language of your enterprise, making the search and exploration of new data as straightforward as posing a question to a colleague, thus fostering collaboration and efficiency. Ultimately, this innovative approach transforms the way organizations interact with their data, driving better decision-making and insights.