Cartesia

cartesia.ai · Compute · 1 record · JSON

Cartesia Compute

caveatemailno cardDvolume-quota

cartesia.ai/pricing · inference API · compute/cartesia · JSON · compare

Free tier	Free plan at USD 0 with '20K credits / month' plus '$1 prepaid agents / month'. The plan table converts that for you: Sonic-3.6 text to speech gets '~27' minutes a month at '2' concurrent requests, Ink-2 speech to text gets '~1h 51m' a month at '8' concurrent requests, and managed agents get 17 minutes at USD 0.06 a minute. The FAQ gives the unit: 'Sonic text-to-speech: One minute of audio generation requires 750-800 credits. 1 credit equals 1 character' and 'Ink speech-to-text: 3 credits equals 1 second of audio'. unit hours; metered on wall-clock; recurring-monthly-credit
Price	none stated
Per-object cap	not applicable
Retention	not applicable
Egress	not stated
Identity	email not published
Limits	volume-quota 27 minutes of generated speech a month, then the pool is empty; the 2-request TTS concurrency ceiling means a batch of short clips still cannot be pushed in one afternoon without queueing, but the volume runs out first. source 27 minutes of generated speech a month, then the pool is empty; the 2-request TTS concurrency ceiling means a batch of short clips still cannot be pushed in one afternoon without queueing, but the volume runs out first.
Binding	volume-quota 27 minutes of generated speech a month, then the pool is empty; the 2-request TTS concurrency ceiling means a batch of short clips still cannot be pushed in one afternoon without queueing, but the volume runs out first.
Interface	unknown inferred from the tooling the provider documents; not probed
Tooling	not stated
Composes with	a free plan here covers the STT side of a demo better than the TTS side, because 20,000 credits at 3 credits a second is 1h51m of transcription while the same pool is only 27 minutes of speech. What breaks: any repeated synthesis, since 27 minutes a month does not accumulate and the plan is monthly rather than annual.
Reliability	no reliability event recorded
Notes	These are inference credits, not general compute. The vendor converts credits to minutes on the page, so the figure is theirs. Rollover exists but caps at 2x the monthly rate, which on a 20,000-credit pool adds at most 27 more minutes of speech. Not established: whether a card is demanded at signup; the pricing page does not say and no account was created. The 17 free agent minutes carry a phone-number line item at USD 0.014 a minute for Cartesia-provisioned numbers, which the free allocation does not cover if a number is requested.
Evidence rung	documented
Checked	2026-10-22 (live); stale on 2026-11-21
Parsed numbers	`$.limits[0].value` limit:volume-quota 27.0 minutes

Evidence (4)

date	source	what it proved
2026-10-22	cartesia.ai/pricing	the plan block prints '$0 /mo ... 20K credits / month ... $1 prepaid agents / month' for the Free plan, quoted
2026-10-22	cartesia.ai/pricing	the comparison table prints 'Sonic-3.6 Minutes included monthly ~27' with 'Concurrent requests 2', and 'Ink-2 Hours included monthly ~1h 51m' with 'Concurrent requests 8', quoted
2026-10-22	cartesia.ai/pricing	'One minute of audio generation requires 750-800 credits. 1 credit equals 1 character' and 'Ink speech-to-text: 3 credits equals 1 second of audio', quoted
2026-10-22	cartesia.ai/pricing	'Free Plan - 17 minutes' of agent calls at '$0.06 per minute', quoted from 'How many voice agent minutes do I get per plan?'

More fields (1)

{
 "wave2": {
  "class": "credit-too-small-for-a-workload",
  "free_tier_kind": "recurring-monthly-credit",
  "shape": {
   "vcpu": null,
   "ram_gib": null,
   "gpu_class": null,
   "gpu_count": 0
  }
 }
}

Unknown or withheld values (10)

$.egress.metered egress-unknown
$.egress.terms not-stated
$.identity_cost.detail process
$.interface interface-unknown
$.per_object_cap.notes process
$.per_object_cap.stated not-applicable
$.reliability_note none-observed
$.retention.notes process
$.retention.stated not-applicable
$.tooling not-stated