Which one is cheaper?

One or both use custom pricing, so it depends on your specific needs.

Can I use either one for free?

Both offer free plans, so you can try each without paying. Start with whichever fits your workflow better and upgrade when you hit the limits.

Different approach here. AssemblyAI uses usage-based pricing, while Speechify goes with flat-rate. That changes the math depending on your team size and usage.

Which one is a better deal?

Depends on what you need. AssemblyAI: They're positioning as the developer-friendly, API-first alternative to Deepgram and Rev AI — competitive on price at scale but differentiated by the breadth of AI features (LLM Gateway, multichannel, etc.). The AWS Marketplace listing signals they're actively chasing enterprise procurement budgets. Speechify: At $29/mo flat, Speechify sits toward the premium end for a personal TTS tool, especially with no trial to soften the jump from free. They're not competing on price — they're betting the free tier hooks you enough that $29 feels justified once you're hooked on the convenience.

AssemblyAI vs Speechify Pricing (2026)

How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.

	AssemblyAI	Speechify
Starts at	Custom	$29/mo
Number of plans	2	2
Free plan
Free trial		—
Pricing model	usage-based	flat-rate

AssemblyAI

Official page

Pay as you go

$0/mo

Universal-3.5 Pro ($0.21/hr)
Universal-2 ($0.15/hr)
Universal-3.5 Pro Realtime ($0.45/hr)
Universal-Streaming ($0.15/hr)
Universal-Streaming Multilingual ($0.15/hr)
Sync API ($0.45/hr)
Voice Agent API ($4.50/hr)
Speaker Diarization ($0.02/hr pre-recorded, $0.12/hr realtime)
Medical Mode ($0.15/hr)
Keyterms Prompting
Prompting ($0.05/hr)
Speaker Identification ($0.02/hr)
Translation ($0.06/hr)
Custom Formatting ($0.03/hr)
Entity Detection ($0.08/hr)
Sentiment Analysis ($0.02/hr)
Auto Chapters ($0.08/hr)
Key Phrases ($0.01/hr)
Topic Detection ($0.15/hr)
Summarization ($0.03/hr)
Profanity Filtering ($0.01/hr)
PII Audio Redaction ($0.05/hr)
PII Text Redaction ($0.08/hr)
Content Moderation ($0.15/hr)
LLM Gateway
No minimum commitments
No credit card required to start

Custom

Custom rate limits
Enhanced concurrency
Enterprise-grade flexibility
Volume-based pricing
Custom starting concurrency limits

Speechify

Official page

Free

$0/mo

Listen at speeds up to 1.5x
Listen anywhere

Premium

Popular

$29/mo

1000+ high quality, natural voices
60+ different languages
Listen at 5x faster speeds
Scan & Listen
AI Summaries & Chats
Google Drive, Dropbox, Microsoft OneDrive Integrations
Voice Typing
AI Podcasts
Voice AI Assistant

AssemblyAI vs Speechify FAQ

Which one is cheaper?: One or both use custom pricing, so it depends on your specific needs.
Can I use either one for free?: Both offer free plans, so you can try each without paying. Start with whichever fits your workflow better and upgrade when you hit the limits.
How do they charge?: Different approach here. AssemblyAI uses usage-based pricing, while Speechify goes with flat-rate. That changes the math depending on your team size and usage.
Which one is a better deal?: Depends on what you need. AssemblyAI: They're positioning as the developer-friendly, API-first alternative to Deepgram and Rev AI — competitive on price at scale but differentiated by the breadth of AI features (LLM Gateway, multichannel, etc.). The AWS Marketplace listing signals they're actively chasing enterprise procurement budgets. Speechify: At $29/mo flat, Speechify sits toward the premium end for a personal TTS tool, especially with no trial to soften the jump from free. They're not competing on price — they're betting the free tier hooks you enough that $29 feels justified once you're hooked on the convenience.

Still deciding? See the best AssemblyAI alternatives or the best Speechify alternatives, ranked with verified pricing.

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