Best Artificial Intelligence (AI) APIs for OpenAI

Find and compare the best Artificial Intelligence (AI) APIs for OpenAI in 2025

Use the comparison tool below to compare the top Artificial Intelligence (AI) APIs for OpenAI on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    ChatGPT Reviews
    ChatGPT by OpenAI is a versatile AI conversational platform that provides assistance in writing, learning, brainstorming, code generation, and problem-solving across a wide range of topics. Available for free with optional Plus and Pro subscription plans, it supports real-time text and voice interactions on web browsers and mobile apps. Users can leverage ChatGPT to create content, summarize meetings, debug code, analyze data, and even generate images using integrated tools like DALLĀ·E 3. The platform is accessible via desktop and mobile devices and offers personalized workflows through custom GPTs and projects. Advanced plans unlock deeper research capabilities, extended limits, and access to cutting-edge AI models like GPT-4o and OpenAI o1 pro mode. ChatGPT integrates search capabilities for real-time information and enables collaboration through features like Canvas for project editing. It caters to students, professionals, hobbyists, and developers seeking efficient, AI-driven support. OpenAI continually updates ChatGPT with new tools and enhanced usability.
  • 2
    GPT-3 Reviews

    GPT-3

    OpenAI

    $0.0200 per 1000 tokens
    1 Rating
    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.
  • 3
    GPT-4 Reviews

    GPT-4

    OpenAI

    $0.0200 per 1000 tokens
    1 Rating
    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.
  • 4
    GPT-3.5 Reviews

    GPT-3.5

    OpenAI

    $0.0200 per 1000 tokens
    1 Rating
    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.
  • 5
    GPT-4 Turbo Reviews

    GPT-4 Turbo

    OpenAI

    $0.0200 per 1000 tokens
    1 Rating
    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.
  • 6
    GPT-4o Reviews

    GPT-4o

    OpenAI

    $5.00 / 1M tokens
    1 Rating
    GPT-4o, with the "o" denoting "omni," represents a significant advancement in the realm of human-computer interaction by accommodating various input types such as text, audio, images, and video, while also producing outputs across these same formats. Its capability to process audio inputs allows for responses in as little as 232 milliseconds, averaging 320 milliseconds, which closely resembles the response times seen in human conversations. In terms of performance, it maintains the efficiency of GPT-4 Turbo for English text and coding while showing marked enhancements in handling text in other languages, all while operating at a much faster pace and at a cost that is 50% lower via the API. Furthermore, GPT-4o excels in its ability to comprehend vision and audio, surpassing the capabilities of its predecessors, making it a powerful tool for multi-modal interactions. This innovative model not only streamlines communication but also broadens the possibilities for applications in diverse fields.
  • 7
    GPT-4o mini Reviews
    A compact model that excels in textual understanding and multimodal reasoning capabilities. The GPT-4o mini is designed to handle a wide array of tasks efficiently, thanks to its low cost and minimal latency, making it ideal for applications that require chaining or parallelizing multiple model calls, such as invoking several APIs simultaneously, processing extensive context like entire codebases or conversation histories, and providing swift, real-time text interactions for customer support chatbots. Currently, the API for GPT-4o mini accommodates both text and visual inputs, with plans to introduce support for text, images, videos, and audio in future updates. This model boasts an impressive context window of 128K tokens and can generate up to 16K output tokens per request, while its knowledge base is current as of October 2023. Additionally, the enhanced tokenizer shared with GPT-4o has made it more efficient in processing non-English text, further broadening its usability for diverse applications. As a result, GPT-4o mini stands out as a versatile tool for developers and businesses alike.
  • 8
    ChatGPT Pro Reviews
    As artificial intelligence continues to evolve, its ability to tackle more intricate and vital challenges will expand, necessitating a greater computational power to support these advancements. The ChatGPT Pro subscription, priced at $200 per month, offers extensive access to OpenAI's premier models and tools, including unrestricted use of the advanced OpenAI o1 model, o1-mini, GPT-4o, and Advanced Voice features. This subscription also grants users access to the o1 pro mode, an enhanced version of o1 that utilizes increased computational resources to deliver superior answers to more challenging inquiries. Looking ahead, we anticipate the introduction of even more robust, resource-demanding productivity tools within this subscription plan. With ChatGPT Pro, users benefit from a variant of our most sophisticated model capable of extended reasoning, yielding the most dependable responses. External expert evaluations have shown that o1 pro mode consistently generates more accurate and thorough responses, particularly excelling in fields such as data science, programming, and legal case analysis, thereby solidifying its value for professional use. In addition, the commitment to ongoing improvements ensures that subscribers will receive continual updates that enhance their experience and capabilities.
  • 9
    Eden AI Reviews

    Eden AI

    Eden AI

    $29/month/user
    Eden AI streamlines the utilization and implementation of AI technologies through a unique API, seamlessly linked to top-tier AI engines. We value your time, sparing you the hassle of choosing the ideal AI engine for your project and data. Forget about waiting for weeks to switch your AI engine – with us, it's a matter of seconds, and it's completely free. Our commitment is to secure the most cost-effective provider without compromising performance quality.
  • 10
    AI/ML API Reviews

    AI/ML API

    AI/ML API

    $4.99/week
    The AI/ML API serves as a revolutionary tool for developers and SaaS entrepreneurs eager to embed advanced AI functionalities into their offerings. It provides a centralized hub for access to an impressive array of over 200 cutting-edge AI models, encompassing various domains such as natural language processing and computer vision. For developers, the platform boasts an extensive library of models that allows for quick prototyping and deployment. It also features a developer-friendly integration process through RESTful APIs and SDKs, ensuring smooth incorporation into existing tech stacks. Additionally, its serverless architecture enables developers to concentrate on writing code rather than managing infrastructure. SaaS entrepreneurs can benefit significantly from this platform as well. They can achieve a rapid time-to-market by utilizing sophisticated AI solutions without the need to develop them from the ground up. Furthermore, the AI/ML API is designed to be scalable, accommodating everything from minimum viable products (MVPs) to full enterprise solutions, fostering growth alongside the business. Its cost-efficient pay-as-you-go pricing model minimizes initial financial outlay, promoting better budget management. Ultimately, leveraging this platform allows businesses to maintain a competitive edge through access to constantly evolving AI models. The integration of such technology can profoundly impact the overall productivity and innovation within a company.
  • 11
    Lemonfox.ai Reviews

    Lemonfox.ai

    Lemonfox.ai

    $5 per month
    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.
  • 12
    D-ID Reviews

    D-ID

    D-ID

    $5.90 per month
    D-ID, a leading technology company that specializes in generative AI and synthesized media, is best known for the Creative Reality Studio. This platform allows users transform text, images and audio into lifelike videos with digital humans that have natural facial expressions and movements. D-ID combines deep learning, computer recognition, and advanced AI models to empower businesses, educators, content creators, and others to create personalized, interactive videos at scale. The Creative Reality Studio allows users to create talking avatars using static images. It is a popular tool in e-learning and marketing, as well as entertainment and customer service. D-ID, which is committed to privacy and ethical AI usage, also incorporates facial anonymousization technology. This ensures secure and responsible handling visual data.
  • 13
    ChatGPT Enterprise Reviews

    ChatGPT Enterprise

    OpenAI

    $60/user/month
    Experience unparalleled security and privacy along with the most advanced iteration of ChatGPT to date. 1. Customer data and prompts are excluded from model training processes. 2. Data is securely encrypted both at rest using AES-256 and during transit with TLS 1.2 or higher. 3. Compliance with SOC 2 standards is ensured. 4. A dedicated admin console simplifies bulk management of members. 5. Features like SSO and Domain Verification enhance security. 6. An analytics dashboard provides insights into usage patterns. 7. Users enjoy unlimited, high-speed access to GPT-4 alongside Advanced Data Analysis capabilities*. 8. With 32k token context windows, you can input four times longer texts and retain memory. 9. Easily shareable chat templates facilitate collaboration within your organization. 10. This comprehensive suite of features ensures that your team operates seamlessly and securely.
  • 14
    GPT-Image-1 Reviews

    GPT-Image-1

    OpenAI

    $0.19 per image
    The Image Generation API from OpenAI, driven by the gpt-image-1 model, allows developers and businesses to seamlessly incorporate top-tier image creation capabilities into their applications and platforms. This model showcases a remarkable adaptability, enabling it to produce visuals in a variety of styles while adhering to specific instructions, utilizing extensive knowledge, and accurately depicting text, thus opening the door to numerous practical uses across various sectors. Numerous leading companies and emerging startups in fields such as creative software, e-commerce, education, enterprise applications, and gaming are already leveraging image generation in their offerings. It empowers creators with the freedom and versatility to explore diverse aesthetic styles. Users can easily generate and modify images based on straightforward prompts, fine-tuning styles, adding or removing elements, expanding backgrounds, and much more, which enhances the creative process. This capability not only fosters innovation but also encourages collaboration among teams striving for visual excellence.
  • 15
    OpenAI Realtime API Reviews
    In 2024, the OpenAI Realtime API was unveiled, providing developers the capability to build applications that support instantaneous, low-latency interactions, exemplified by speech-to-speech conversations. This innovative API caters to various applications, including customer support systems, AI-driven voice assistants, and educational tools for language learning. Departing from earlier methods that necessitated the use of multiple models for speech recognition and text-to-speech tasks, the Realtime API integrates these functions into a single call, significantly enhancing the speed and fluidity of voice interactions in applications. As a result, developers can create more engaging and responsive user experiences.
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