Alternatives to Cartesia.

Other Voice & audio profiles in the same directory. Shared topics show where they overlap. Nothing here was timed, ranked by revenue, or tested on our laptops.

Cartesia is Watch. Speech models and voice agents sold as credits.

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AssemblyAI

AssemblyAI

Speech-to-text with a published hourly rate, plus text to speech.

$50 in free credits. Universal-3.5 Pro pre-recorded is $0.21 an hour. Streaming bills the open socket, not just the audio. Text to speech is $15 per million characters.

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Deepgram

Deepgram

Speech-to-text, text-to-speech, and voice agents.

$200 free credit, then pay as you go. Nova-3 monolingual pre-recorded is $0.0043 a minute. Aura-2 is $0.030 per 1,000 characters.

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Whisper

OpenAI

OpenAI's open speech-recognition models and code.

The repository is free to download. OpenAI's hosted transcription API is a separate, metered product.

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ElevenLabs Scribe

ElevenLabs

Speech-to-text tools for recorded and real-time transcription, with timestamps and speaker features.

Free and paid shared-credit plans. The speech-to-text page lists plan-specific minutes; Starter is $6/month before taxes after promotion.

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ElevenLabs Text to Speech

ElevenLabs

Speech generation with plan-dependent voice features, credit usage and licensing.

Free $0/month with 10,000 shared credits; Starter $6/month after first-month promotions. Commercial license listed on Starter.

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