CELESTLABS / VOICE-AI107 LANGUAGES · ANY REGION · ON-PREM
feather · starling

Deploy frontier voice AI anywhere.

Human-quality speech and cloning in 107 languages, up to 50× cheaper than frontier models. Run it in any region, or inside your own cloud..

Start for freeHear a voice
107languages
<100msto first word
50×cheaper
100%on-prem
Scroll
Powering voice at
Cars24 Flexprice + startups and enterprises shipping voice in production
01 / The moat

The moat isn’t quality.
It’s price, availability, and where your data lives.

Everyone can make a voice sound human now. We make it something you can actually afford, run in every region the hyperscalers forgot, and keep entirely inside your own cloud.

01 · Price

Up to 50× cheaper

Frontier-grade voices at a fraction of the per-character cost. The bill scales with you, not against you.

02 · Availability

Any region, no GPU

Ordinary CPUs run it, so it deploys in the regions where GPU capacity is scarce, queued, or simply not offered. No quota tickets, no capacity roulette.

03 · Residence

Your cloud, or on-prem

Deploy inside your own VPC or fully on-premise. Your audio and your users’ data never leave your walls.

02 / Hear it

Real voices. Real rooms.

A live conversation across three languages, then the same voice dropped into any room, ambient noise and all. Press play.

Comfort food, around the world
6 voices · English and Hindi · one shared table
0:00
Drop a voice into any room
03 / Models

Two models. One API.

feather

fast · cpu

Real-time speech built to run cheaply on commodity CPUs. The workhorse for agents, IVR, and high-volume narration.

Price$1.90/1M chars
Latency<100ms to first word
Runs onCPU · any region
Best forVoice agents · alerts

starling

flagship

The expressive flagship. 107 languages and instant voice cloning, tuned for narration, media, and lifelike agents.

Price$9.00/1M chars
Languages107
CloningZero-shot, <30s
Best forNarration · cloning · media
04 / Coverage

Native in 107 languages.

EnglishEspañolहिन्दी中文العربيةPortuguêsFrançaisDeutsch日本語한국어ਪੰਜਾਬੀবাংলাРусскийItalianoTürkçeTiếng Việtதமிழ்తెలుగుاردوBahasaKiswahiliNederlandsPolskiไทย EnglishEspañolहिन्दी中文العربيةPortuguêsFrançaisDeutsch日本語한국어ਪੰਜਾਬੀবাংলাРусскийItalianoTürkçeTiếng Việtதமிழ்తెలుగుاردوBahasaKiswahiliNederlandsPolskiไทย
05 / Economics

Watch the bill.

Cost per one million characters. Same human-grade audio, a fraction of the spend.

CelestLabs feather
$1.90 · 1×
CelestLabs starling
$9.00 · ~5×
OpenAI
$15 · ~8×
Frontier avg
up to 50×
// feather $1.90 · starling $9.00 per 1M characters · competitor rates approximate, published list prices
06 / By the numbers
0languages
0msfeather · first word
0×cheaper
0%uptime

Deploy frontier voice AI anywhere.

One API for feather and starling. Start free, ship to any region, keep your data yours.

Start for freeTalk to us