AssemblyAI vs Deepgram
A side-by-side look at AssemblyAI vs Deepgram: pricing, free plans and features, taken from each official website. Prices change often, so check the linked sources.
| Feature | AssemblyAI | Deepgram |
|---|---|---|
| Type | Tool · Transcription | Tool · Transcription |
| Made by | unknown | unknown |
| What it does | Speech AI API | Speech-to-text API |
| Pricing model | Paid | Paid |
| Free tier | unknown | unknown |
| Current prices | unknown | unknown |
| Modalities | unknown | unknown |
| Key features | unknown | unknown |
| Context window | unknown | unknown |
| API | unknown | unknown |
| License | Proprietary service | Proprietary service |
| Web app | unknown | unknown |
| Mobile apps | unknown | unknown |
| Desktop app | unknown | unknown |
| Links | Website ↗Deekoya listing | Website ↗Deekoya listing |
AssemblyAI vs Deepgram: pricing and features
AssemblyAI
AssemblyAI provides a Speech AI API for transcription and speech understanding. It offers pre-recorded, real-time, and sync transcription endpoints along with voice agent and guardrail capabilities.
Pricing
Pricing is listed per hour of audio processed. Examples from the official site include $0.15 /hr for the Universal-3 model, $0.21 /hr for Universal-2, $0.05 /hr for Included Prompting, $0.02 /hr for certain Universal-2 tiers, $0.04 /hr for Speaker Diarization, $0.10 /hr for PII Text Redaction, and $0.45 /hr for custom rate limits with enhanced concurrency. These rates were read directly from AssemblyAI’s pricing page.
Key features
- Understand context, intent, and meaning
- Power agentic workflows in real time
- Scale securely from MVP to production
- Pre-recorded Speech-to-Text API
- Realtime Speech-to-Text API
- Speaker Diarization (available on select tiers)
Source: official homepage, official pricing page · checked 2026-10-27
Deepgram
Deepgram provides enterprise-grade voice AI with Speech-to-Text, Text-to-Speech, and Voice Agent APIs. The platform is built for real-time, scalable applications and offers expressive TTS voices with latency as low as 80 ms.
Pricing
The official site lists a free $200 credit then pay-as-you-go usage. Per-minute rates shown include $0.0065/min, $0.0057/min, $0.0048/min, $0.0042/min, $0.0058/min, $0.0050/min, $0.0078/min, $0.0043/min, $0.0052/min, $0.0020/min, $0.0013/min, and $0.0017/min. Flux TTS is priced at $0.0450 per 1k characters, and for every $1 spent on Flux TTS the company adds $1 in credits up to $500. These figures were read from the official Deepgram pricing page.
Key features
- Expressive Text-to-Speech voices with latency as low as 80 ms
- Voice Agent API enables real-time conversation in a single call
- Audio Intelligence extracts insights from every conversation
- Context maintains conversation history and system settings
- System Updates adjust role or behavior on the fly
- Prompt Updates refine instructions in real time
Source: official homepage, official pricing page · checked 2026-10-27
FAQ
Which is free, AssemblyAI vs Deepgram?
AssemblyAI: has a free plan or trial per its official site; Deepgram: has a free plan or trial per its official site.
What is the difference between AssemblyAI vs Deepgram?
AssemblyAI: AssemblyAI provides a Speech AI API for transcription and speech understanding. Deepgram: Deepgram provides enterprise-grade voice AI with Speech-to-Text, Text-to-Speech, and Voice Agent APIs.