What Cartesia Sonic 3.5 is best at
Pricing
Cartesia Sonic 3.5 costs 4 credits per 1,000 characters on Versely. It bills per 1,000 characters of input text.
| Option | Price |
|---|---|
| per 1,000 characters | 4 credits |
Prices are Versely credits. Your plan's credit allowance is on the pricing page.
Cartesia Sonic 3.5 variants
Versely runs 2 versions of this model - tiers and input modes share the same underlying model, so they live here rather than on 2 near-identical pages. Prices range from 4 to 4 credits.
| Variant | Mode | Tier | Credits | Max resolution | Durations |
|---|---|---|---|---|---|
| Cartesia Sonic 3 | text to audio | Standard | 4/1k chars | - | - |
| Cartesia Sonic 3.5This page | text to audio | Standard | 4/1k chars | - | - |
Inputs
Text prompt
Generates from a written prompt - no media upload required.
Voice sample
Takes a reference recording and clones that voice.
Rankings
Cartesia Sonic 3.5 ranks #17 overall with an Elo score of 1191 on Versely's live model rankings.
| Category | Rank | Elo | Measured |
|---|---|---|---|
| Text to audio | #17 | 1191 | - |
Release
Cartesia Sonic 3.5 was released on June 16, 2026 (released 4 months ago).
Other audio models
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Frequently asked questions
How much does Cartesia Sonic 3.5 cost on Versely?+
Cartesia Sonic 3.5 costs 4 credits per 1,000 characters on Versely.
What is Cartesia Sonic 3.5 best for?+
Cartesia's Sonic 3.5 TTS model. Multilingual, highly expressive, with emotion control, speed tuning, and voice cloning. On Versely it is filed as a Cartesia audio model for text to audio, voice clone.
How many versions of Cartesia Sonic 3.5 are there?+
Versely runs 2 Cartesia Sonic 3.5 variants - Cartesia Sonic 3.5 (text to audio, 4 credits); Cartesia Sonic 3 (text to audio, 4 credits). They range from 4 to 4 credits.
How does Cartesia Sonic 3.5 rank against other audio models?+
Cartesia Sonic 3.5 ranks #17 overall with an Elo score of 1191 on Versely's live model rankings.
Does Cartesia Sonic 3.5 need a voice sample?+
Cartesia Sonic 3.5 works from an audio input — it clones or converts a voice you supply.
Try Cartesia Sonic 3.5 inside Versely
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Guides
Hume Octave 2 vs Cartesia Sonic 3.5
Hume Octave 2 is not on Versely, and Hume's API closes 13 November 2026. Cartesia Sonic 3.5 is 4 credits per 1,000 characters here.
Cartesia Sonic 3.5: Sub-100ms Voices and What Latency Buys You
Cartesia's Sonic 3.5 hits sub-90ms latency across 42 languages and fixes the reads that break TTS: numbers, codes, emails. What that actually buys creators.
Sonic 3.5 vs Inworld TTS 2
Sonic 3.5 is the latency and technical-text row. Inworld TTS 2 is the character and style-steering row. They cost 4 and 2 credits per 1,000 characters.