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Head to head · 2026

AssemblyAI vs Google Cloud Speech-to-Text

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

AssemblyAI

A developer API, not an app, built for accuracy benchmarks

4.5Free

Visit AssemblyAI (opens AssemblyAI in a new tab)

Google Cloud Speech-to-Text

Google Cloud's speech recognition API converting audio to text across 125+ languages with real-time streaming

4.3Free

Visit Google Cloud Speech-to-Text (opens Google Cloud Speech-to-Text in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: AssemblyAI does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    AssemblyAI

    4.5 against 4.3

  • Same job?

    Yes

    Both are Audio tools

Side by side

Compared onAssemblyAIGoogle Cloud Speech-to-Text
Our rating4.5Better4.3
Starts atFreeFree
Free planYesYes
CategoryAudioAudio
PlansFree
  • V2 standard$0.016 per minute for the first 500K minutes a month, falling to $0.004 above 2M
  • V2 dynamic batch$0.003 per minute
  • V1First 60 minutes a month free, then $0.016 per minute (with data logging) or $0.024 (without)
Key features
  • Usage-based speech-to-text API
  • LeMUR framework for LLM analysis on transcripts
  • Published accuracy benchmarks against competitors
  • Real-time and batch transcription modes
  • Free API credits for testing
  • Speech recognition across 125+ languages and regional variants
  • Real-time streaming transcription alongside batch processing
  • Automatic punctuation and speaker diarization
  • Domain-tuned models for phone calls and video content
  • Custom vocabulary adaptation without full model retraining
Pros
  • Strong, independently referenced accuracy benchmarks
  • LeMUR adds LLM-based analysis without a separate pipeline
  • Usage-based pricing scales with actual demand
  • Language and variant coverage exceeds most competing transcription APIs
  • 60 minutes of free processing every month, not only a one-time trial
  • Proven at scale, processing over 1 billion voice minutes monthly
Cons
  • No consumer app, requires development work to use
  • Full value depends on having an engineering team to integrate it
  • Cost can grow quickly at high transcription volume
  • Per-second billing makes total cost hard to predict without usage forecasting
  • Enhanced models for phone and video audio cost more than the standard tier
  • Requires a Google Cloud account, not a standalone consumer product
CompanyAssemblyAI, founded 2017Google, founded 2017

Prices come from each vendor's pricing page, last checked 20260703. Check the vendor before you buy.

FAQ

Questions people ask

Is AssemblyAI better than Google Cloud Speech-to-Text?

In our reviews AssemblyAI scores 4.5 and Google Cloud Speech-to-Text scores 4.3. The better pick depends on the job. AssemblyAI: A developer API, not an app, built for accuracy benchmarks. Google Cloud Speech-to-Text: Google Cloud's speech recognition API converting audio to text across 125+ languages with real-time streaming.

Which is cheaper, AssemblyAI or Google Cloud Speech-to-Text?

AssemblyAI: free. Google Cloud Speech-to-Text: free.

Do AssemblyAI and Google Cloud Speech-to-Text have free plans?

Yes, both have a free plan.

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