AssemblyAI vs Udio
AssemblyAI uniquely has 8 features · Udio uniquely has 4 features.
| AssemblyAI | Udio | |
|---|---|---|
| Company | ||
| Founded | 2017 | 2024 |
| HQ | San Francisco, USA | San Francisco, USA |
| AI model | Universal-3.5 Pro (Proprietary) | Proprietary |
| User base | Millions of developers | 1M+ |
| Platforms | Web, API (all platforms via SDK) | Web |
| Languages | 99 (Universal-2), 18 (Universal-3.5 Pro) | English primary, multilingual prompts supported |
| Pricing | ||
| Free plan | Yes | Yes |
| Free trial | Yes-unlimited (free tier, no credit card required — up to 185 hours pre-recorded, 333 hours streaming) | Yes — free trial available for Standard plan |
| Starting price | $0.15/hr | Free |
| Enterprise | Custom pricing with custom rate limits, enhanced concurrency, and enterprise-grade flexibility | — |
| All plans | Free TierFreeUniversal-3.5 Pro$0.15/hrUniversal-3.5 Pro$0.21/hrEnterprise / CustomCustom | Free$0/moStandard$10/moPro$30/mo |
| Positioning | ||
| Best for | Developers and enterprises building voice AI applications, transcription services, and voice agents | Musicians, songwriters, and music creators of all skill levels who want AI-generated music from text prompts |
| Differentiator | Native code switching and highly accurate speaker diarization; async speech-to-text trained on 12.5M+ hours of audio | Udio combines high-fidelity AI music generation with granular editing tools — including Voice Control, inpainting, remixing, and style blending — enabling both amateur and professional musicians to fine-tune and extend AI-generated songs from text prompts or uploaded audio. |
| Competitors | Deepgram, OpenAI Whisper, Google Speech-to-Text, Amazon Transcribe, Rev.ai | Suno, Soundraw, Boomy, Mubert, Aiva |
| Features | ||
| Async Speech to Text | ✓ | — |
| Async Transcription | ✓ | — |
| Code Switching | ✓ | — |
| Multi Language Support | ✓ | — |
| 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 | No publicly listed third-party integrations; audio upload/download supports DAW workflows |
| Zapier | — | ✕ |