Deepgram vs Speechify

Tagline

Scalable Speech-to-Text, Text-to-Speech & Voice Agent APIs with simple, transparent billing.

Text to Speech & Voice Typing AI Assistant

Category

Pricing

Rating

Platforms

API

Open source

Description

Deepgram is a developer-first Voice AI platform offering highly accurate, scalable Speech-to-Text (STT), Text-to-Speech (TTS), and Voice Agent APIs. Built for real-time and batch workflows, Deepgram supports over 45 languages, advanced features like Speaker Diarization, Smart Formatting, and Audio Intelligence models, combined with true per-second billing and enterprise-grade security.

Speechify is an AI-powered text-to-speech reader and voice typing assistant. It turns books, PDFs, documents, emails, and web pages into natural-sounding speech across multiple devices. Users can adjust speed up to 4.5x, utilize voice typing dictation, summarize text with a Voice AI assistant, or create professional-quality voiceovers, dub videos, and clone voices inside Speechify Studio.

Key features

• Speech-to-Text
• Text-to-Speech
• Voice Agent API
• Speaker Diarization
• Smart Formatting
• Keyterm Prompting
• Automatic Language Detection
• Sentiment Analysis
• Topic Detection
• Summarization
• Intent Recognition
• Redaction

• Text to Speech
• Voice Typing Dictation
• Voice AI Assistant
• Text Highlighting
• Adjustable Speed Control
• Scan & Listen
• AI Voice Generator
• Voice Over
• Dubbing
• Voice Cloning
• Studio Captions
• Developer APIs

Pros

• Provides a generous $200 free credit to new accounts that does not expire after 12 months.
• Employs true per-second billing without rounding up to the nearest minute or 15 seconds.
• Charges the exact same low rate for both real-time streaming and pre-recorded (batch) transcription.
• SOC 2 Type 2 certified and HIPAA compliant, with BAAs available for Enterprise customers.
• Provides options to deploy on-premise or in private clouds via self-hosted containers.
• Offers a Growth plan starting at $4k/year that unlocks up to approximately 20% discount across products.
• Aura TTS Billing is done by input character, facilitating precise cost controls.
• Supports automatic multilingual transcription and code-switching via Nova's multilingual models.
• Allows refunds on unused purchased credits within 30 days of purchase.

• Offers extensive platform support including Web, iOS, Android, macOS, Windows, Chrome, and Edge.
• Enables text micro-management with fine-tunable playback speeds up to 4.5x.
• Provides a Voice Typing features designed to format spoken dictation up to 5 times faster than standard typing.
• An integrated Voice AI Assistant answers questions and generates summaries based directly on parsed documents.
• Supports seamless visual matching using text highlighting synchronized to spoken voiceovers.
• Includes the advanced Speechify Studio platform for multi-language dubbing, voice overrides, and custom voice cloning.
• Developer API features all-inclusive flat pricing for voice agents (LLM, STT, and TTS included) with no passthrough or token math.
• Converts any standard text file, PDF, or browser article directly into a personalized audio show or podcast.
• API supports a diverse library of over 1,500 voices and 30+ global languages.

Cons

• Self-hosted container deployments are restricted to Enterprise tier and require dedicated NVIDIA GPUs.
• Promotional or free credits are completely non-transferable under all circumstances.
• Purchased credits are non-refundable once they pass the 30-day mark.
• No refunds or adjustments are provided for incorrect or faulty audio files uploaded due to user-side system/coding errors.
• Exceeding currency limits on Pay-As-You-Go plans may cause requests to be queued or rejected.
• Multichannel audio billing scales by total processed duration (e.g., 2 channels for 10 minutes equals 20 minutes of billable time).

• Exact subscription dollar amounts for standard individual Premium TTS plans are not listed transparently in the crawled pricing pages.
• Primary capabilities like cross-device synchronization, offline use, and advanced AI voices are restricted under the Premium plan.
• API usage is dependent on maintaining a prepaid balance with automatic top-ups to prevent runtime production stalls.
• Enterprise agreements do not allow standard self-serve contract cancellations and are bound to specific negotiated terms.
• Speechify Studio does not explicitly outline built-in free tier quotas for voiceover creation or video dubbing timelines.

Pricing plans

• Pay As You Go—
  • • Free $200 Credit then pay-as-you-go
  • • No minimums
  • • No expiration
  • • No credit card required
• GrowthUSD4000/year
  • • $4K+/ year
  • • With pre-paid credits for the year
  • • Credits are redeemed against actual usage
  • • Growth usage rates shown for STT, TTS, Voice Agent API, and Audio Intelligence
• Enterprise—
  • • For businesses with large volumes
  • • For data or deployment requirements
  • • For support needs
  • • Enterprise-grade trust and compliance options

• FreeUSD0
  • • Text-to-speech reader
  • • Read aloud PDFs, docs and more
  • • Apps/extensions across devices
• PremiumUSD29/month
  • • Premium Voice Reader
  • • Advanced AI voices
  • • Cross-device sync
  • • Offline use
• Free PlanUSD0
  • • Access to 1,000+ realistic voices
  • • Voiceover Studio
  • • Dubbing Studio
  • • Voice Changer
• Studio StarterUSD19/month
  • • Great for small projects
• Studio CreatorUSD49/month
  • • Best Value
  • • Best for regular content creation
  • • Everything in Studio Starter
• FreeUSD0/month
  • • Build and ship on both APIs
  • • No credit card
  • • Start free
• StarterUSD10/month
  • • For solo devs and early-stage projects
  • • Text-to-speech 1M chars included, then $10/1M
  • • Voice agents 120 min included, then $0.075/min
• ProUSD99/month
  • • For teams shipping voice in production
  • • Text-to-speech 3M chars included, then $8/1M
  • • Voice agents 1,200 min included, then $0.07/min
  • • Professional voice cloning
• ScaleUSD499/month
  • • For serious production voice traffic
  • • Text-to-speech 10M chars included, then $6/1M
  • • Voice agents 6,000 min included, then $0.068/min
• Enterprise—
  • • Voice agents from $0.06 / minute
  • • Custom volume & rate commitments
  • • SSO, SOC 2 Type II, custom DPA
  • • Custom voices, models & integrations

Website