List of the Top 15 AI Gateways for OpenAI in 2025

OpenRouter acts as a unified interface for a variety of large language models (LLMs), efficiently highlighting the best prices and optimal latencies/throughputs from multiple suppliers, allowing users to set their own priorities regarding these aspects. The platform eliminates the need to alter existing code when transitioning between different models or providers, ensuring a smooth experience for users. Additionally, there is the possibility for users to choose and finance their own models, enhancing customization. Rather than depending on potentially inaccurate assessments, OpenRouter allows for the comparison of models based on real-world performance across diverse applications. Users can interact with several models simultaneously in a chatroom format, enriching the collaborative experience. Payment for utilizing these models can be handled by users, developers, or a mix of both, and it's important to note that model availability can change. Furthermore, an API provides access to details regarding models, pricing, and constraints. OpenRouter smartly routes requests to the most appropriate providers based on the selected model and the user's set preferences. By default, it ensures requests are evenly distributed among top providers for optimal uptime; however, users can customize this process by modifying the provider object in the request body. Another significant feature is the prioritization of providers with consistent performance and minimal outages over the past 10 seconds. Ultimately, OpenRouter enhances the experience of navigating multiple LLMs, making it an essential resource for both developers and users, while also paving the way for future advancements in model integration and usability.

Dataiku is an advanced platform designed for data science and machine learning that empowers teams to build, deploy, and manage AI and analytics projects on a significant scale. It fosters collaboration among a wide array of users, including data scientists and business analysts, enabling them to collaboratively develop data pipelines, create machine learning models, and prepare data using both visual tools and coding options. By supporting the complete AI lifecycle, Dataiku offers vital resources for data preparation, model training, deployment, and continuous project monitoring. The platform also features integrations that bolster its functionality, including generative AI, which facilitates innovation and the implementation of AI solutions across different industries. As a result, Dataiku stands out as an essential resource for teams aiming to effectively leverage the capabilities of AI in their operations and decision-making processes. Its versatility and comprehensive suite of tools make it an ideal choice for organizations seeking to enhance their analytical capabilities.

APIPark functions as a robust, open-source gateway and developer portal for APIs, aimed at optimizing the management, integration, and deployment of AI services for both developers and businesses alike. Serving as a centralized platform, APIPark accommodates any AI model, efficiently managing authentication credentials while also tracking API usage costs. The system ensures a unified data format for requests across diverse AI models, meaning that updates to AI models or prompts won't interfere with applications or microservices, which simplifies the process of implementing AI and reduces ongoing maintenance costs. Developers can quickly integrate various AI models and prompts to generate new APIs, including those for tasks like sentiment analysis, translation, or data analytics, by leveraging tools such as OpenAI’s GPT-4 along with customized prompts. Moreover, the API lifecycle management feature allows for consistent oversight of APIs, covering aspects like traffic management, load balancing, and version control of public-facing APIs, which significantly boosts the quality and longevity of the APIs. This methodology not only streamlines processes but also promotes creative advancements in crafting new AI-powered solutions, paving the way for a more innovative technological landscape. As a result, APIPark stands out as a vital resource for anyone looking to harness the power of AI efficiently.

LiteLLM acts as an all-encompassing platform that streamlines interaction with over 100 Large Language Models (LLMs) through a unified interface. It features a Proxy Server (LLM Gateway) alongside a Python SDK, empowering developers to seamlessly integrate various LLMs into their applications. The Proxy Server adopts a centralized management system that facilitates load balancing, cost monitoring across multiple projects, and guarantees alignment of input/output formats with OpenAI standards. By supporting a diverse array of providers, it enhances operational management through the creation of unique call IDs for each request, which is vital for effective tracking and logging in different systems. Furthermore, developers can take advantage of pre-configured callbacks to log data using various tools, which significantly boosts functionality. For enterprise users, LiteLLM offers an array of advanced features such as Single Sign-On (SSO), extensive user management capabilities, and dedicated support through platforms like Discord and Slack, ensuring businesses have the necessary resources for success. This comprehensive strategy not only heightens operational efficiency but also cultivates a collaborative atmosphere where creativity and innovation can thrive, ultimately leading to better outcomes for all users. Thus, LiteLLM positions itself as a pivotal tool for organizations looking to leverage LLMs effectively in their workflows.

Arch functions as an advanced gateway that protects, supervises, and customizes the performance of AI agents by fluidly connecting with your APIs. Utilizing Envoy Proxy, Arch guarantees secure data handling, smart traffic management, comprehensive monitoring, and smooth integration with backend systems, all while maintaining a separation from business logic. Its architecture operates externally, accommodating a range of programming languages, which facilitates quick deployments and seamless updates. Designed with cutting-edge sub-billion parameter Large Language Models (LLMs), Arch excels in carrying out critical prompt-related tasks, such as personalizing APIs through function invocation, applying prompt safeguards to reduce harmful content or circumventing attempts, and identifying shifts in intent to enhance both retrieval accuracy and response times. By expanding Envoy's cluster subsystem, Arch effectively oversees upstream connections to LLMs, promoting the development of powerful AI applications. In addition, it serves as a front-end gateway for AI applications, offering essential features like TLS termination, rate limiting, and prompt-based routing. These robust functionalities establish Arch as a vital resource for developers who aspire to improve the effectiveness and security of their AI-enhanced solutions, while also delivering a smooth user experience. Moreover, Arch's flexibility and adaptability ensure it can evolve alongside the rapidly changing landscape of AI technology.

LangDB serves as a collaborative and openly accessible repository focused on a wide array of natural language processing tasks and datasets in numerous languages. Functioning as a central resource, this platform facilitates the tracking of benchmarks, the sharing of tools, and the promotion of the development of multilingual AI models, all while emphasizing transparency and inclusivity in the representation of languages. By adopting a community-driven model, it invites contributions from users globally, significantly enriching the variety and depth of the resources offered. This engagement not only strengthens the database but also fosters a sense of belonging among contributors.

LLM Gateway is an entirely open-source API gateway that provides a unified platform for routing, managing, and analyzing requests to a variety of large language model providers, including OpenAI, Anthropic, and Google Vertex AI, all through one OpenAI-compatible endpoint. It enables seamless transitions and integrations with multiple providers, while its adaptive model orchestration ensures that each request is sent to the most appropriate engine, delivering a cohesive user experience. Moreover, it features comprehensive usage analytics that empower users to track requests, token consumption, response times, and costs in real-time, thereby promoting transparency and informed decision-making. The platform is equipped with advanced performance monitoring tools that enable users to compare models based on both accuracy and cost efficiency, alongside secure key management that centralizes API credentials within a role-based access system. Users can choose to deploy LLM Gateway on their own systems under the MIT license or take advantage of the hosted service available as a progressive web app, ensuring that integration is as simple as a modification to the API base URL, which keeps existing code in any programming language or framework—like cURL, Python, TypeScript, or Go—fully operational without any necessary changes. Ultimately, LLM Gateway equips developers with a flexible and effective tool to harness the potential of various AI models while retaining oversight of their usage and financial implications. Its comprehensive features make it a valuable asset for developers seeking to optimize their interactions with AI technologies.

TensorBlock is an open-source AI infrastructure platform designed to broaden access to large language models by integrating two main components. At its heart lies Forge, a self-hosted, privacy-focused API gateway that unifies connections to multiple LLM providers through a single endpoint compatible with OpenAI’s offerings, which includes advanced encrypted key management, adaptive model routing, usage tracking, and strategies that optimize costs. Complementing Forge is TensorBlock Studio, a user-friendly workspace that enables developers to engage with multiple LLMs effortlessly, featuring a modular plugin system, customizable workflows for prompts, real-time chat history, and built-in natural language APIs that simplify prompt engineering and model assessment. With a strong emphasis on a modular and scalable architecture, TensorBlock is rooted in principles of transparency, adaptability, and equity, allowing organizations to explore, implement, and manage AI agents while retaining full control and reducing infrastructural demands. This cutting-edge platform not only improves accessibility but also nurtures innovation and teamwork within the artificial intelligence domain, making it a valuable resource for developers and organizations alike. As a result, it stands to significantly impact the future landscape of AI applications and their integration into various sectors.

LMOps is a comprehensive stack designed for launching production-ready applications that facilitate monitoring, model management, and additional features. Portkey serves as an alternative to OpenAI and similar API providers. With Portkey, you can efficiently oversee engines, parameters, and versions, enabling you to switch, upgrade, and test models with ease and assurance. You can also access aggregated metrics for your application and user activity, allowing for optimization of usage and control over API expenses. To safeguard your user data against malicious threats and accidental leaks, proactive alerts will notify you if any issues arise. You have the opportunity to evaluate your models under real-world scenarios and deploy those that exhibit the best performance. After spending more than two and a half years developing applications that utilize LLM APIs, we found that while creating a proof of concept was manageable in a weekend, the transition to production and ongoing management proved to be cumbersome. To address these challenges, we created Portkey to facilitate the effective deployment of large language model APIs in your applications. Whether or not you decide to give Portkey a try, we are committed to assisting you in your journey! Additionally, our team is here to provide support and share insights that can enhance your experience with LLM technologies.

Kong AI Gateway acts as an advanced semantic AI gateway that controls and protects traffic originating from Large Language Models (LLMs), allowing for swift integration of Generative AI (GenAI) via innovative semantic AI plugins. This platform enables users to integrate, secure, and monitor popular LLMs seamlessly, while also improving AI interactions with features such as semantic caching and strong security measures. Moreover, it incorporates advanced prompt engineering strategies to uphold compliance and governance standards. Developers find it easy to adapt their existing AI applications using a single line of code, which greatly simplifies the transition process. In addition, Kong AI Gateway offers no-code AI integrations, allowing users to easily modify and enhance API responses through straightforward declarative configurations. By implementing sophisticated prompt security protocols, the platform defines acceptable behaviors and helps craft optimized prompts with AI templates that align with OpenAI's interface. This powerful suite of features firmly establishes Kong AI Gateway as a vital resource for organizations aiming to fully leverage the capabilities of AI technology. With its user-friendly approach and robust functionalities, it stands out as an essential solution in the evolving landscape of artificial intelligence.

Developed by LM-SYS, RouteLLM is an accessible toolkit that allows users to allocate tasks across multiple large language models, thereby improving both resource management and operational efficiency. The system incorporates strategy-based routing that aids developers in maximizing speed, accuracy, and cost-effectiveness by automatically selecting the optimal model tailored to each unique input. This cutting-edge method not only simplifies workflows but also significantly boosts the performance of applications utilizing language models. In addition, it empowers users to make more informed decisions regarding model deployment, ultimately leading to superior results in various applications.

Orq.ai emerges as the premier platform customized for software teams to adeptly oversee agentic AI systems on a grand scale. It enables users to fine-tune prompts, explore diverse applications, and meticulously monitor performance, eliminating any potential oversights and the necessity for informal assessments. Users have the ability to experiment with various prompts and LLM configurations before moving them into production. Additionally, it allows for the evaluation of agentic AI systems in offline settings. The platform facilitates the rollout of GenAI functionalities to specific user groups while ensuring strong guardrails are in place, prioritizing data privacy, and leveraging sophisticated RAG pipelines. It also provides visualization of all events triggered by agents, making debugging swift and efficient. Users receive comprehensive insights into costs, latency, and overall performance metrics. Moreover, the platform allows for seamless integration with preferred AI models or even the inclusion of custom solutions. Orq.ai significantly enhances workflow productivity with easily accessible components tailored specifically for agentic AI systems. It consolidates the management of critical stages in the LLM application lifecycle into a unified platform. With flexible options for self-hosted or hybrid deployment, it adheres to SOC 2 and GDPR compliance, ensuring enterprise-grade security. This extensive strategy not only optimizes operations but also empowers teams to innovate rapidly and respond effectively within an ever-evolving technological environment, ultimately fostering a culture of continuous improvement.

Models can be accessed either via the integrated Chat UI of the application or by setting up a local server compatible with OpenAI. The essential requirements for this setup include an M1, M2, or M3 Mac, or a Windows PC with a processor that has AVX2 instruction support. Currently, Linux support is available in its beta phase. A significant benefit of using a local LLM is the strong focus on privacy, which is a fundamental aspect of LM Studio, ensuring that your data remains secure and exclusively on your personal device. Moreover, you can run LLMs that you import into LM Studio using an API server hosted on your own machine. This arrangement not only enhances security but also provides a customized experience when interacting with language models. Ultimately, such a configuration allows for greater control and peace of mind regarding your information while utilizing advanced language processing capabilities.

Kosmoy Studio acts as the essential driving force behind your organization’s exploration of artificial intelligence. Designed as a comprehensive toolkit, it accelerates the integration of Generative AI by offering pre-built solutions and powerful tools, thus alleviating the need to develop complex AI features from scratch. With Kosmoy at their fingertips, businesses can focus on creating solutions that add value without the burden of starting from the beginning. The platform guarantees centralized governance, which enables organizations to consistently enforce policies and standards across all AI initiatives. This governance encompasses the management of approved large language models (LLMs), ensuring the protection of data integrity and adherence to safety regulations. By achieving a balance between adaptability and centralized control, Kosmoy Studio allows localized teams to customize Generative AI applications while still adhering to overarching governance frameworks. Furthermore, it streamlines the development of personalized AI applications, removing the necessity to code from the ground up for every new project. As a result, Kosmoy Studio not only boosts operational efficiency but also fosters a culture of innovation within organizations, ultimately helping them stay ahead in the competitive landscape. This ability to innovate quickly can be a game changer in industries where time-to-market is crucial.

Undrstnd Developers provides a streamlined way for both developers and businesses to build AI-powered applications with just four lines of code. You can enjoy remarkably rapid AI inference speeds, achieving performance up to 20 times faster than GPT-4 and other leading models in the industry. Our cost-effective AI solutions are designed to be up to 70 times cheaper than traditional providers like OpenAI, ensuring that innovation is within reach for everyone. With our intuitive data source feature, users can upload datasets and train models in under a minute, facilitating a smooth workflow. Choose from a wide array of open-source Large Language Models (LLMs) specifically customized to meet your distinct needs, all bolstered by sturdy and flexible APIs. The platform offers multiple integration options, allowing developers to effortlessly incorporate our AI solutions into their applications, including RESTful APIs and SDKs for popular programming languages such as Python, Java, and JavaScript. Whether you're working on a web application, a mobile app, or an Internet of Things device, our platform equips you with all the essential tools and resources for seamless integration of AI capabilities. Additionally, our user-friendly interface is designed to simplify the entire process, making AI more accessible than ever for developers and businesses alike. This commitment to accessibility and ease of use empowers innovators to harness the full potential of AI technology.