Cartesia vs Speechify: Features, Pricing and User Reviews 2026
What are Cartesia and Speechify?
Cartesia is a voice AI company that builds fast, natural sounding speech models for real time conversations. It was started by researchers who helped create State Space Models, a design built for speed and understanding long stretches of context.
The platform gives you three main tools. Sonic turns text into natural speech, Ink turns speech into accurate text, and Line lets you build and run full voice agents that use both together.
Cartesia is made mainly for developers and companies who want to add voice features to their own apps, support lines, or automated calling systems, rather than everyday casual users.
You can start for free and move up to paid plans as your usage grows, with custom options for larger teams.
Speechify is a voice AI assistant that turns written content into natural sounding audio you can listen to anywhere. You can upload documents, paste text, add web links, or scan printed pages with your camera, and Speechify reads it back in one of over a thousand realistic voices.
It also lets you talk to your content, asking questions, getting summaries, or taking quizzes on what you just heard. Beyond reading, Speechify offers voice typing so you can write by speaking, and it can turn any document into a short AI podcast.
Everything you save syncs across your phone, computer, and browser, so you can start listening on one device and pick up right where you left off on another.
Features of Cartesia and Speechify
Natural sounding text to speech in 40+ languages
Accurate speech to text with turn detection
Code first voice agent platform
Instant and professional voice cloning
Batch outbound calling
Cloud, on premise, and on device deployment
Zero data retention and call redaction
Free plan with paid plans that scale up
Natural sounding text to speech in 60+ languages
Playback speeds up to 4.5x
Camera scan and listen for printed pages
Voice AI assistant for summaries and quizzes
Voice typing dictation for any app
One click AI podcasts from documents
Voice cloning for a personal listening voice
Cross device library and sync
Chrome, iOS, Android, Mac, and Windows apps
Developer API for text to speech and voice agents
Use Cases of Cartesia and Speechify
Pricing of Cartesia and Speechify
Cartesia offers five pricing plans, from a free plan to a custom Enterprise option, so both small projects and large companies can find a fit.
Free ($0/month): 20K credits a month plus $1 in prepaid agent usage, with access to Text to Speech and Speech to Text.
Pro ($5/month): 100K credits a month, commercial use rights, and instant voice cloning.
Startup ($49/month): 1.25M credits a month, professional voice cloning, and organization accounts.
Scale ($299/month): 8M credits a month, priority support, and higher concurrency limits.
Enterprise (Custom pricing): Custom credits, volume pricing, custom concurrency, SSO, and compliance agreements.
Extra charges apply for things like phone numbers ($0.014 per minute) and voice agent call minutes ($0.06 per minute), and subscriptions can be paused or cancelled anytime.
Speechify has a free plan that includes basic robotic voices and standard text to speech only.
Premium ($29/month or $139/year): Unlocks 1,000+ natural voices, 60+ languages, playback up to 4.5x speed, Scan and Listen, AI summaries, voice typing, and AI podcasts.
Speechify Studio ($0 to $300/year): A separate product for voiceovers, video dubbing, and voice cloning, with Starter at $100/year and Creator at $300/year.
SpeechifyAI API ($0 to $499/month, or Custom): Developer pricing for text to speech and voice agents, with Free, Starter, Pro, and Scale tiers, plus custom Enterprise plans.
Whether you want to listen, create, or build, Speechify has a pricing tier suited to how you plan to use it.
FAQs: Cartesia vs Speechify
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Compare Speechify With Other Tools
ElevenLabs
Realistic AI Voice & Audio Tools
Murf AI
Realistic AI Voices, Agents & Dubbing
Fish Audio
AI Voice Cloning & Text to Speech
Typecast
Expressive AI Voice Generator Tool
Smallest AI
Fast, Accurate Voice AI Platform
Rime AI
Natural Voice AI for Real Conversations
Hume AI
Empathic Voice AI That Understands You
Inworld AI
Realtime Voice AI Infrastructure
Deepgram
Fast, Accurate Speech AI for Teams
