Cartesia

Fast streaming text-to-speech with a web playground and API. AI model and agent, with a free plan; runs on web. The stack builder picks it for voiceover.

Try Cartesia Build a stack for voiceover

What it is known for

Read on October 9, 2026 from cartesia.ai.

Plans and prices

PlanPriceWhat you get
FreeFree20,000 credits a month
Pro$5/mo
Startup$49/mo
Scale$299/mo

Checked by hand against cartesia.ai/pricing on October 9, 2026; confidence high. Prices are monthly in US dollars unless the row says otherwise; the builder counts the plan it starts on, Pro.

When the stack builder picks it

The builder reads each job's rules from the top and takes the first step whose conditions hold and whose plan fits the money left. Cartesia is named in these steps:

The rules are public in stack-rules.json, and how the stack builder scores explains the tie-break.

Alternatives the same rules name

Signals and what people say

Change log

Logo: Nameryn monogram (no free mark on file), CC0 1.0.

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