Compare the Top Artificial Intelligence (AI) APIs for Startups as of June 2025

What is Artificial Intelligence (AI) APIs for Startups?

Artificial Intelligence APIs are software that provide access to advanced technology, AI, and machine learning algorithms designed to solve complex problems. They allow developers to create applications with smarter artificial intelligence features such as natural language processing, image recognition, and more. Many companies use AI APIs to automate tasks or gain insights into customer data so they can improve their products or services. AI APIs are constantly evolving, enabling businesses to benefit from cutting-edge technologies while decreasing the time required for development. Compare and read user reviews of the best Artificial Intelligence (AI) APIs for Startups currently available using the table below. This list is updated regularly.

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    Google Cloud Speech-to-Text
    The Google Cloud Speech-to-Text service provides a powerful AI API that allows developers to seamlessly integrate speech recognition capabilities into their applications. This API processes audio input in real time and can transcribe it into text, making it suitable for a wide range of applications, including voice search and interactive systems. The API's ability to work with various audio formats and handle different speech patterns further enhances its versatility. Additionally, it provides enhanced capabilities for handling long audio files and multiple speakers, offering more comprehensive transcription solutions. As a bonus, new customers receive $300 in free credits to experiment with these AI tools, giving them the flexibility to explore the API’s full potential without initial financial commitment.
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    Starting Price: Free ($300 in free credits)
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  • 2
    Speechmatics

    Speechmatics

    Speechmatics

    Best-in-Market Speech-to-Text & Voice AI for Enterprises. Speechmatics delivers industry-leading Speech-to-Text and Voice AI for enterprises needing unrivaled accuracy, security, and flexibility. Our enterprise-grade APIs provide real-time and batch transcription with exceptional precision—across the widest range of languages, dialects, and accents. Powered by Foundational Speech Technology, Speechmatics supports mission-critical voice applications in media, contact centers, finance, healthcare, and more. With on-prem, cloud, and hybrid deployment, businesses maintain full control over data security while unlocking voice insights. Trusted by global leaders, Speechmatics is the top choice for best-in-class transcription and voice intelligence. 🔹 Unmatched Accuracy – Superior transcription across languages & accents 🔹 Flexible Deployment – Cloud, on-prem, and hybrid 🔹 Enterprise-Grade Security – Full data control 🔹 Real-Time & Batch Processing – Scalable transcription
    Starting Price: $0 per month
  • 3
    Murf AI

    Murf AI

    Murf AI

    Murf API is an advanced text-to-speech (TTS) solution that transforms written text into natural, lifelike voiceovers with remarkable accuracy and ease. It empowers developers and businesses with a suite of sophisticated features, including pitch and speed modulation, audio duration adjustments, customizable pauses, and an extensive pronunciation library. With 133+ AI voices in 20+ languages, including regional accents, Murf API enables businesses to create localized and accessible audio experiences for global audiences. The API supports a variety of audio formats—MP3, WAV, FLAC, ALAW, ULAW, and Base64. Murf API features a transparent, self-serve pricing model with flexible plans, robust security measures, and comprehensive documentation, ensuring effortless integration with chatbots, IVR systems, websites, and mobile apps.
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    Starting Price: $9/one-time
  • 4
    Novita AI

    Novita AI

    novita.ai

    Explore the full spectrum of AI APIs tailored for image, video, audio, and LLM applications. Novita AI is designed to elevate your AI-driven business at the pace of technology, offering model hosting and training solutions. Access 100+ APIs, including AI image generation & editing with 10,000+ models, and training APIs for custom models. Enjoy the cheapest pay-as-you-go pricing, freeing you from GPU maintenance hassles while building your own products. generate images in 2s from 10000+ models with a single click. Updated models with civitai and hugging face. Provide a wide variety of products based on Novita API. You can empower your own products with a quick Novita API integration.
    Starting Price: $0.0015 per image
  • 5
    Stability AI

    Stability AI

    Stability AI

    Designing and implementing solutions using collective intelligence and augmented technology. Stability AI is building open AI tools that will let us reach our potential. We’re a company of builders who care deeply about real-world implications and applications. Many of our most considerable advances grow from working across multiple teams. We are unafraid to go against established norms and explore creativity. Our primary drive is to generate breakthrough ideas and convert them into solutions. We respect innovation over tradition. We trust that our differences make us more robust, and so we seek reason within every difference of perspective.
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