Does SpeechifyAI have a free tier?

Yes, SpeechifyAI offers a free tier or free trial.

Is SpeechifyAI open source?

No, SpeechifyAI is not open source.

SpeechifyAI

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Text-to-speech API with low-latency streaming, voice cloning, and 30+ locales

SpeechifyAI is the developer API from Speechify, serving its Simba text-to-speech models. Simba 3.2 ranks at the top of the Artificial Analysis TTS leaderboard (July 2026) and is priced at $10/1M characters on the entry tier, dropping to $6/1M at volume. The architecture is streaming-native with sub-100ms latency.

It covers 30+ locales with locally recorded voices, zero-shot voice cloning from a short reference clip, SSML support, and emotion control. Free tier includes 50K characters/month; paid plans start at $10/mo with 1M characters included.

Pricing: Free tier (50K chars/mo); Starter $10/mo (1M chars, then $10/1M); Pro $99/mo (3M, then $8/1M); Scale $499/mo (10M, then $6/1M); Enterprise volume discounts

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Speechify's developer API exposes the Simba text-to-speech models behind a REST endpoint with Python and TypeScript SDKs. The current model, simba-3.2, targets English integrations with low time-to-first-byte and expressive output; simba-multilingual covers 30+ languages, and simba-english is the model that supports cloned voices. Speechify reports sub-100ms streaming latency and lists Simba 3.2 at the top of the Artificial Analysis TTS leaderboard (per Speechify, July 2026).

Voice cloning works from a short reference clip, roughly 10 to 30 seconds of audio, capturing timbre and cadence. Pricing is subscription-based with usage overage: a free tier gives 50K characters per month with no card required, Starter is $10/mo (1M characters included, then $10 per 1M), Pro is $99/mo (3M included, then $8 per 1M), and Scale is $499/mo (10M included, then $6 per 1M), with volume discounts on Enterprise. Overage usage auto tops up. For teams already using OpenAI-style TTS, Speechify publishes an open-source proxy shim rather than a drop-in compatible endpoint.