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Deepgram vs AssemblyAI

A feature-by-feature comparison of Deepgram and AssemblyAI across 7 capability categories.

Try Deepgram (opens in a new tab)
Try AssemblyAI (opens in a new tab)

Modalities — Tie

Modalities: Deepgram compared with AssemblyAI
FeatureDeepgramAssemblyAI
Text Input
Partial. Prompts configure Voice Agent behavior. Primary input is audio.Partial. Prompts steer Speech Understanding. Primary input is audio.
Image Upload / Vision
No. Speech platform, not vision.No. Speech platform, not vision.
Image Generation
No. Does not generate images.No. Does not generate images.
Voice Mode
Yes, requires plus plan. Voice Agent API is a conversational speech loop.Yes, requires plus plan. Voice Agent WebSocket is a conversational speech product.
Video Understanding
No. Audio/speech focus, not video analysis.No. Audio/speech focus.
Video Generation
No. Not a video generation product.No. Not a video generation product.
File Upload (PDF, DOCX)
Partial. Batch transcription accepts audio files. Not a PDF chat uploader.Partial. Upload audio/video files for async transcription.
Code Execution
No. STT/TTS APIs, not a code sandbox.No. STT APIs, not a code sandbox.
Audio Input
Yes, requires plus plan. Flux STT and Voice Agent consume live and recorded audio.Yes, requires plus plan. Realtime and batch STT are the core product.
Canvas / Artifact Editor
No. Not a canvas product.No. Not a canvas product.
Screen Sharing / Computer Use
No. No computer-use product.No. No computer-use product.

Memory & Context — Tie

Memory & Context: Deepgram compared with AssemblyAI
FeatureDeepgramAssemblyAI
Persistent Memory
Partial. Voice Agent sessions retain context within a call.Partial. Voice Agent retains session context during a call.
Large Context Window
Unknown. Agent context limits were not on the homepage snippet.Unknown. Agent context limits were not checked.
Custom Instructions
Yes, requires plus plan. Configure Voice Agent prompts and behavior.Yes, requires plus plan. Configure Voice Agent prompts and guardrails.
Conversation History
Partial. Call logs and transcripts in console. API is per-session.Partial. Transcripts stored per job. Realtime is per-session.

Integrations — Tie

Integrations: Deepgram compared with AssemblyAI
FeatureDeepgramAssemblyAI
Web Search / Browsing
Unknown. Whether Voice Agent can search the web was not checked.Unknown. Web search in Voice Agent was not confirmed.
Plugins / Extensions
Partial. Integrations and webhooks for voice workflows.Partial. LLM Gateway and integrations connect upstream models.
API Access
Yes, requires plus plan. REST and WebSocket APIs for STT, TTS, and Voice Agent.Yes, requires plus plan. REST and WebSocket APIs for STT and Voice Agent.
Zapier Integration
Unknown. Zapier listing was not checked.Unknown. Zapier listing was not checked.
Custom GPTs / Bots
Yes, requires plus plan. Voice Agent is a deployable speech bot.Yes, requires plus plan. Voice Agent is a deployable speech bot.
Real-time Collaboration
No. No multiplayer canvas.No. No multiplayer product.
Live Social Data Integration
No. No social firehose.No. No social firehose.
Live Citation Mapping
No. Not a cited-search product.No. Not a cited-search product.

Developer — Deepgram Wins

Developer: Deepgram compared with AssemblyAI
FeatureDeepgramAssemblyAI
Function Calling
Partial. Voice Agent can invoke configured tools during a call.Partial. Voice Agent can call tools via LLM Gateway.
Streaming Responses
Yes, requires plus plan. Realtime streaming STT and TTS.Yes, requires plus plan. Realtime STT streams partial transcripts over WebSocket.
Fine-Tuning
Unknown. Custom STT models were not confirmed on homepage.Unknown. Custom STT was not confirmed on homepage.
Embeddings API
No. Speech APIs, not embeddings.No. Not an embeddings product.
Structured Output (JSON)
Partial. Structured transcript formats and diarization.Partial. Speech Understanding returns structured entities and summaries.
Reasoning / Thinking Mode
No. Not a text reasoning model product.No. Not a reasoning LLM.
Local Execution
Yes, requires enterprise plan. Self-hosted deployment option alongside cloud.No. Cloud-only STT. Distinct from self-hosted Whisper.
Open Weights
No. Proprietary Flux models. Distinct from Whisper open weights.No. Proprietary models and APIs.
Multi-Agent Orchestration
No. Single voice agent per call.No. Single voice agent per session.

Platforms — Tie

Platforms: Deepgram compared with AssemblyAI
FeatureDeepgramAssemblyAI
Web App
Partial. Console for keys and testing. Primary surface is API.Partial. Dashboard for API keys and playground.
iOS App
No. No consumer iOS app.No. No iOS app.
Android App
No. No Android app.No. No Android app.
Desktop App
No. No desktop app.No. No desktop app.
Chrome Extension
No. No Chrome extension.No. No Chrome extension.

Privacy — Tie

Privacy: Deepgram compared with AssemblyAI
FeatureDeepgramAssemblyAI
GDPR Compliant
Unknown. Compliance docs were not re-read.Unknown. Compliance docs were not re-read.
Opt Out of Data Training
Unknown. Training on customer audio was not checked.Unknown. Training policy was not checked.
Enterprise Privacy Mode
Yes, requires enterprise plan. Self-hosted and private cloud deployment options.Yes, requires enterprise plan. Guardrails, EU data residency options, and enterprise contracts.

Workspaces — Tie

Workspaces: Deepgram compared with AssemblyAI
FeatureDeepgramAssemblyAI
Projects / Folders
Partial. Console projects for API keys and usage.Partial. Dashboard organizes API keys and usage.