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Systems Operational · v2.4
AssemblyAI

AssemblyAI

Speech-to-text and audio intelligence APIs for transcripts, summaries, and insights.

Visit Website
At a Glance
Website
assemblyai.com
Category
Voice AI
Ideal For
Developer, Founder
Platforms
Web, API
Added
July 14, 2026
Pricing
Freemium
Last Verified
September 2, 2026
AssemblyAI screenshot

What is AssemblyAI?

TL;DR

AssemblyAI provides speech AI APIs for transcription, speaker intelligence, summarization, audio understanding, and real-time voice applications built on recorded or live audio at scale for developers.

  • Transcribe audio and video through developer APIs
  • Generate summaries, chapters, sentiment, and insights
  • Supports real-time and asynchronous speech workflows

Explore with AI

ChatGPTClaudePerplexityGemini

About

. emblyA.\n\n. .\n\npeec. A.\n\nplatfor. tha. giv. develope. AP. fo. tra. criptio. an. audi. intelligence. I. ca. tur. audi. an. vide. int. text. extrac. ummari. . chapte. . ke. phr. . . entiment. peake. information. an. othe. i. igh. tha. hel. tea. buil. voic. an. medi. produc. f. ter. Th. platfor. . . efu. fo. Saa. founde. creatin. meetin. . . tan. . podc. . too. . cal. analyti. . uppor. qualit. workflo. . vide. captioning. medi. earch. educatio. produc. . an. voice-b. e. automation. I. tea. o. buildin. peec. recognitio. an. audi. intelligenc. mode. internally. develope. ca. integrat. . emblyA. throug. AP. . . emblyA. uppor. bot. . ynchrono. an. real-tim. workflo. dependin. o. th. produc. need. Th. mak. i. relevan. fo. uploade. media. liv. cal. . voic. agen. . an. applicatio. tha. analyz. conve. atio. dat. afte. th. fact. Fo. FutureStack. . emblyA. belon. i. Voic. A. whil. remainin. developer-foc. ed. I. . b. . fo. technica. founde. an. develope. buildin. peec. produc. . tra. criptio. too. . cal. intelligence. meetin. anal. . . an. audio-powere. A. featur. .

Use Cases

Speech Transcription

Convert live or recorded speech into accurate text for calls, meetings, media, and applications.

Call Intelligence

Analyze conversations for speakers, summaries, topics, sentiment, and other business signals.

Voice Applications

Add speech recognition and audio intelligence to assistants, agents, and conversational products.

Media Processing

Extract searchable information from podcasts, videos, interviews, and other audio-heavy content.

Key Features

  • Transcribe audio and video through developer APIs
  • Generate summaries, chapters, sentiment, and insights
  • Supports real-time and asynchronous speech workflows
  • Useful for meeting tools, call analytics, media, and support

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beehiiv
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We may earn commissions from links to support our work. Learn more.

Explore with AI

ChatGPTClaudePerplexityGemini

Pricing summary

Usage-based pricing with free start access. Pre-recorded models are listed from $0.15/hour, while realtime, sync, voice agent, and add-on features have separate rates.

Pricing & Plans

Free Credits

Start testing speech-to-text and audio intelligence APIs.

Free
  • Free starter credits
  • Transcription API testing
  • Audio intelligence experiments
  • Good for prototypes
Popular

Pay As You Go

Usage-based transcription and audio intelligence for production apps.

Custom
  • Pay by usage
  • Speech-to-text APIs
  • Summaries and insights
  • Real-time and async workflows

Enterprise

Custom speech AI pricing and support for larger teams.

Custom
  • Custom pricing
  • Higher-volume workloads
  • Enterprise support
  • Security and billing needs

Other pricing notes

  • AssemblyAI uses usage-based pricing that varies by model, workflow, and add-on features.
  • Realtime, transcription, voice-agent, and audio-intelligence capabilities can have separate rates.
  • Confirm model rates, language support, data handling, and enterprise terms before production use.
Pricing last checked: July 2026Official pricing

Pros & Cons

Pros

  • Strong speech-to-text APIs for async, realtime, and sync workflows
  • Audio intelligence features reduce custom NLP work after transcription
  • Usage-based pricing fits prototypes and scaling voice products
  • Broad language and voice-agent use cases for developers
  • Enterprise options support higher limits and custom workloads

Cons

  • Hourly API costs can grow quickly with high audio volume
  • Add-on features may increase the effective transcription cost
  • Medical or regulated workflows need extra review and compliance checks
  • Developers must integrate and monitor APIs themselves
  • Exact model choice affects accuracy, latency, and price

The Best AssemblyAI Alternatives

The best AssemblyAI alternatives are Deepgram, ElevenLabs, and Cartesia.

Deepgram

Deepgram

Freemium

Voice AI

Choose Deepgram if...

  • ✓you rely on voice developers
  • ✓you need supports real-time and prerecorded audio
  • ✓you prefer low-latency APIs
See details ↓
ElevenLabs

ElevenLabs

Freemium

Voice AI

Choose ElevenLabs if...

  • ✓you want very realistic voice quality
  • ✓you need strong creator and developer workflows
  • ✓you prefer supports dubbing and voice cloning
See details ↓
Cartesia

Cartesia

Paid

Voice AI

Choose Cartesia if...

  • ✓you want strong real-time voice focus
  • ✓you value developers building voice products
  • ✓you prefer good fit for AI agents
See details ↓

Frequently Asked Questions

Reviews

Honest feedback from the FutureStack community.

0.0
0 ratings

No reviews yet. Be the first to share your experience.

Featured Tools

Wispr Flow logo
Wispr Flow
Voice-First Dictation
Chatbase logo
Chatbase
Custom AI Chatbots
beehiiv logo
beehiiv
Newsletter Platform

We may earn commissions from links to support our work. Learn more.

Explore with AI

ChatGPTClaudePerplexityGemini

Trending Tools on FutureStack

Discover the most popular and hand-picked AI tools across FutureStack

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CommandCode

CommandCode

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Choose CommandCode if...

  • ✓you prefer developers who prefer terminal workflows
  • ✓you need learns repeated coding preferences over time
  • ✓you prefer supports skills, memory, MCP, plugins, and commands
See details ↓
SambaNova Cloud
SambaNova Cloud

SambaNova Cloud

Freemium

Developer Tools

Choose SambaNova Cloud if...

  • ✓you want strong open-model selection
  • ✓you need usage-based pricing by model and token
  • ✓you prefer designed for production inference workloads
See details ↓
Google Flow
Google Flow

Google Flow

Freemium

Video Generation

Choose Google Flow if...

  • ✓you want strong filmmaking-oriented workflow
  • ✓you need uses multiple Google generative models
  • ✓you prefer supports reference-driven consistency
See details ↓
Amp
Amp

Amp

Paid

Coding

Choose Amp if...

  • ✓you want strong for complex multi-step engineering work
  • ✓you need remote agents can continue without your laptop
  • ✓you prefer specialist agents enable parallel workflows
See details ↓
IBM Bob
IBM Bob

IBM Bob

Paid

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Choose IBM Bob if...

  • ✓you prefer enterprise software development
  • ✓you need supports agents and parallel development work
  • ✓you prefer works across IDE, CLI, and CI/CD workflows
See details ↓
Humanloop
Humanloop

Humanloop

Free Trial

Developer Tools

Choose Humanloop if...

  • ✓you want combines prompt management, evals, and observability
  • ✓you need supports both UI-first and code-first workflows
  • ✓you prefer human and automated evaluation options
See details ↓
LiteAi.me
LiteAi.me

LiteAi.me

Freemium

Developer Tools

Choose LiteAi.me if...

  • ✓you want very low setup barrier for beginners
  • ✓you value students and classroom projects
  • ✓you prefer combines web publishing and Android packaging
See details ↓
Scribe
Scribe

Scribe

Freemium

Productivity

Choose Scribe if...

  • ✓you want turns real workflows into documentation much faster than writing guides manually
  • ✓you prefer SOPs, onboarding, training, customer education, and client handoffs
  • ✓you prefer supports web, desktop, and mobile process capture on paid plans
See details ↓
Cursor
Cursor

Cursor

Freemium

Coding

Choose Cursor if...

  • ✓you want combines editing, chat, autocomplete, and agents
  • ✓you need strong project-context awareness
  • ✓you value founders shipping quickly
See details ↓
OpenWork
OpenWork

OpenWork

Freemium

Developer Tools

Choose OpenWork if...

  • ✓you want open source and local-first
  • ✓you need supports many model providers
  • ✓you prefer useful beyond coding and chat
See details ↓
AssemblyAI

AssemblyAI

Voice AI

Visit