Categories/AI Developer APIs & Platforms/AI Computer Vision & Speech APIs
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AI Computer Vision & Speech APIs

Add the ability to see, read, and listen to your applications — via APIs for image recognition, OCR, object detection, speech-to-text, and speaker identification. These are the building blocks behind AI apps that process documents, analyze photos, or transcribe audio at scale.

Freemium
D-ID

D-ID

Create AI-powered videos and interactive visual AI agents

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4
Freemium
DeepMotion

DeepMotion

Generate 3D animations from video in seconds with AI motion capture.

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2
Freemium
ElevenLabs

ElevenLabs

Lifelike AI voices, agents, and audio for creators and developers

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2
Freemium
Google Gemini API

Google Gemini API

Build with Google's multimodal Gemini models via API and AI Studio

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2
Freemium
Immersity

Immersity

Transforms everyday moments into immersive experiences on any device.

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1
Freemium
WellSaid Labs

WellSaid Labs

Enterprise-grade AI voice generator with 120+ realistic, licensed voices

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1
Freemium
Unreal Speech

Unreal Speech

The cheapest, fastest text-to-speech API for developers

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1
Freemium
Cleanvoice AI

Cleanvoice AI

AI podcast editor that removes filler words, noise, and dead air in minutes

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1
Freemium
Mubert

Mubert

Human and AI music generator for royalty-free soundtracks

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1
Paid
Vapi

Vapi

Build, test, and deploy advanced voice AI agents in minutes

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1
Freemium
Groq

Groq

The fastest inference cloud for open-source LLMs, powered by custom LPU chips

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1
Freemium
Pinecone

Pinecone

The vector database to build knowledgeable AI agents at any scale

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1
Enterprise
Dolby OptiView

Dolby OptiView

The rebranded dolby.io platform powering live sports streaming, playback, and ads

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AI Computer Vision & Speech APIs

Computer vision and speech APIs give your applications the ability to process images, video, and audio — capabilities that would have required significant ML expertise to build a few years ago. Now they're available as simple API calls from the major cloud providers and specialized platforms.

Common capabilities available via API

  • Image classification and object detection — identifying what's in an image or locating specific objects within it.
  • OCR (Optical Character Recognition) — extracting text from scanned documents, receipts, and forms.
  • Speech-to-text — converting audio recordings or live speech into accurate transcripts.
  • Speaker identification — distinguishing between different speakers in a multi-person recording.

Specialized vs. cloud provider APIs

Major cloud providers (AWS, Google, Azure) offer solid general-purpose vision and speech APIs. Specialized providers like AssemblyAI and Deepgram focus entirely on audio/speech and tend to offer more accurate transcription, better speaker diarization, and more granular controls for production use cases.

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