Head-to-head
AssemblyAI vs Auphonic
Auphonic uniquely has 10 features · AssemblyAI uniquely has 5 features.
The verdict
AssemblyAI or Auphonic?
Section 01
Pricing, plan by plan
Every plan each vendor publishes, monthly and yearly where both are offered.
AssemblyAI
Free Tier
Free
Up to 185 hours pre-recorded transcription and 333 hours streaming transcription, no credit card required
Universal-3.5 Pro
$0.15/hr
Highly accurate STT model, 99 languages, 12.5M+ hours training data, no minimum commitment
Universal-3.5 Pro
$0.21/hr
Most accurate async STT model, 18 languages, native code-switching, best-in-class speaker diarization
Enterprise / Custom
Custom
Custom rate limits, enhanced concurrency, enterprise-grade flexibility, volume discounts, AWS Marketplace available
Auphonic
Auphonic Free
Free
2 hours/month, all basic AI algorithms, includes jingle, no speech recognition
Auphonic S (Yearly)
$13/mo · $132/yr
9 hours/month, all features including speech recognition, no jingle, priority processing
Auphonic M (Yearly)
$30/mo · $300/yr
21 hours/month, all features, priority processing
Auphonic L (Yearly)
$64/mo · $624/yr
45 hours/month, all features, priority processing
Auphonic XL (Yearly)
$136/mo · $1356/yr
100 hours/month, all features, priority processing
Auphonic XXL (Yearly)
$290/mo · $2940/yr
250 hours/month, all features, priority processing
One-Time Credits 5h
$12
5 hours one-time, never expire, $2.40/hr
One-Time Credits 10h
$23
10 hours one-time, never expire, $2.30/hr
One-Time Credits 25h
$55
25 hours one-time, never expire, $2.20/hr
One-Time Credits 50h
$100
50 hours one-time, never expire, $2.00/hr
One-Time Credits 100h
$171
100 hours one-time, never expire, $1.71/hr
Business
Custom
Custom
Section 02
Pros and cons
From each tool's full review, written from the same checked facts.
AssemblyAI
Pros
- Universal-3.5 Pro model supports native code-switching across 18 languages with an exceptionally fast real-time factor of 0.008x, making it viable for demanding production environments.
- Comprehensive API-first platform that goes well beyond transcription, including speaker diarization, sentiment analysis, topic detection, entity recognition, and PII redaction.
- Pre-recorded transcription API supports 99 languages via the Universal-2 model, offering broad global coverage.
- Includes a Voice Agent API and an LLM gateway that allows routing to models like GPT or Claude within the same pipeline.
- Medical Mode is available, indicating deliberate positioning for healthcare use cases with specialized transcription needs.
- Real-time streaming transcription is supported alongside pre-recorded audio, giving developers flexibility across different application types.
- Strong adoption among developers and engineering teams, with active discussion in forums and a reported user base of millions of developers.
Cons
- No consumer-facing dashboard — users cannot simply upload an audio file and download a transcript without developer setup.
- No text-to-speech, voice cloning, or music generation capabilities, limiting use cases strictly to speech input and understanding output.
- Limited public feedback on the Medical Mode feature makes it difficult to assess its real-world accuracy and reliability.
- The product is entirely API-first, meaning non-technical buyers or small teams without engineering resources are effectively excluded.
- Code-switching in the Universal-3.5 Pro model is limited to 18 languages, which may not cover all multilingual production needs.
- The broad surface area of the platform — transcription, voice agents, LLM gateway — may introduce integration complexity for teams building simple use cases.
Auphonic
Pros
- The 1-click workflow genuinely automates repetitive audio post-production tasks without requiring manual EQ or timeline editing.
- Comprehensive audio enhancement suite includes intelligent leveling, AutoEQ, noise reduction, de-esser, de-plosive filter, and reverb reduction.
- Multitrack mixdown support makes it practical for remote interview recordings with separate tracks.
- Transcription powered by OpenAI Whisper supports 100+ languages as a solid bonus feature.
- Auto-generated show notes and chapter markers reduce manual metadata work for podcasters.
- Has quietly built a 2M+ user base since 2011, indicating strong product reliability and longevity.
- Preset-based workflow means recurring audio producers can process files consistently with minimal setup time.
Cons
- No text-to-speech, voice cloning, or music generation capabilities, limiting use cases for content creators who need those features.
- Not a DAW or audio editor, so users needing manual creative control over audio will need a separate tool.
- Review is based entirely on secondary research with no hands-on testing, leaving real-world edge cases unverified.
- Primarily suited to podcasters, educators, and corporate trainers — narrower appeal for more complex production workflows.
- AI-driven automation means limited user control over individual processing parameters for those who want fine-tuned adjustments.
Side by side
| Company | ||
| Founded | 2017 | 2011 |
| HQ | San Francisco, USA | Graz, Austria |
| AI model | Universal-3.5 Pro (Proprietary) | Proprietary AI + OpenAI Whisper (speech recognition) |
| User base | Millions of developers | 2M+ |
| Platforms | Web, API (all platforms via SDK) | Web |
| Languages | 99 (Universal-2), 18 (Universal-3.5 Pro) | Multilingual — 100+ languages via Whisper speech recognition |
| Pricing | ||
| Pricing model | Credit-based | Freemium |
| Free plan | Yes | Yes |
| Free trial | Yes-unlimited (free tier, no credit card required — up to 185 hours pre-recorded, 333 hours streaming) | No |
| Starting price | $0.15/hr | $13/mo |
| Enterprise | Custom pricing with custom rate limits, enhanced concurrency, and enterprise-grade flexibility | > 1000 h/mo (custom) |
| All plans | Free Tier — Free Universal-3.5 Pro — $0.15/hr Universal-3.5 Pro — $0.21/hr Enterprise / Custom — Custom | Auphonic Free — Free Auphonic S (Yearly) — $13/mo Auphonic M (Yearly) — $30/mo Auphonic L (Yearly) — $64/mo Auphonic XL (Yearly) — $136/mo Auphonic XXL (Yearly) — $290/mo One-Time Credits 5h — $12 one-time One-Time Credits 10h — $23 one-time One-Time Credits 25h — $55 one-time One-Time Credits 50h — $100 one-time One-Time Credits 100h — $171 one-time Business — Custom |
| Positioning | ||
| Best for | Developers and enterprises building voice AI applications, transcription services, and voice agents | Podcasters, educators, and content creators needing automated audio post-production |
| Differentiator | Native code switching and highly accurate speaker diarization; async speech-to-text trained on 12.5M+ hours of audio | Fully automated AI audio post-production with loudness normalization, multitrack support, filler word cutting, and direct publishing integrations — all in one 1-click workflow requiring no audio engineering knowledge. |
| Competitors | Deepgram, OpenAI Whisper, Google Speech-to-Text, Amazon Transcribe, Rev.ai | Adobe Podcast, Descript, Cleanfeed, Hindenburg, Podcastle |
| Features | ||
| 1 Click Audio Processing | — | ✓ |
| AI Based Audio Algorithms | — | ✓ |
| Async Speech to Text | ✓ | — |
| Async Transcription | ✓ | — |
| Auto Renew Option | — | ✓ |
| Code Switching | ✓ | — |
| Free Tier (2h/Month) | — | ✓ |
| Multi Language Support | ✓ | — |
| One Time Credits (Never Expire) | — | ✓ |
| Recurring Monthly Credits | — | ✓ |
| Speaker Diarization | ✓ | — |
| API Access | ✓ | ✓ |
| Audio Enhancement | ✕ | ✓ |
| Batch Processing | ✓ | ✓ |
| Commercial Rights | ✓ | ✓ |
| Languages Supported | ✓ | ✓ |
| Mobile App | ✕ | ✕ |
| Music Generation | ✕ | ✕ |
| Noise Removal | ✕ | ✓ |
| Podcast Editing | ✕ | ✓ |
| Text to Speech | ✕ | ✕ |
| Transcription | ✓ | ✓ |
| Voice Cloning | ✕ | ✕ |
| Voice Styles | ✕ | ✕ |
| Integrations | ||
| Adobe Audition | ✕ | ✕ |
| API Access | ✓ | ✓ |
| Garageband | ✕ | ✕ |
| Key Integrations | AWS Marketplace, GPT (LLM Gateway), Claude (LLM Gateway), Gemini (LLM Gateway), Community LLM Models, Python SDK, REST API, WebSocket Streaming API | YouTube, Libsyn, PodBean, SoundCloud, Facebook, RSS.com, Acast, Scrybecast, Dropbox, Google Drive, S3, FTP/SFTP, Zapier, external service integrations API |
| Zapier | — | ✓ |
Section 03
AssemblyAI vs Auphonic: common questions
Is AssemblyAI or Auphonic cheaper?
AssemblyAI's cheapest paid plan is $0.15/hr and Auphonic's is $13/mo. Compare what each plan includes below before going on price alone.
Keep comparing
More AssemblyAI matchups
