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Audexum

Czech Text to SpeechČeština

Generate natural-sounding Czech audio via REST API. 10 voices, Latin script, 2,000 free credits + 250/day, no credit card.

Start freeTry Czech in playground
Sample, Czech (cs-CZ)

Vítejte v Audexum: hlasová syntéza pro vývojáře a tvůrce obsahu.

Try this in the playground

Why Audexum for Czech

  • Full Czech háček support: á, č, ď, é, ě, í, ň, ó, ř, š, ť, ú, ů, ý, ž
  • Correct ř phoneme, the retroflex fricative trill unique to Czech that most models replace with r
  • Czech startup ecosystem is active: many apps need Czech TTS at indie-dev pricing
  • No language surcharge: Czech costs the same as English at every Audexum tier
Competitor coverage

ElevenLabs supports Czech on Multilingual v2, at roughly $182/1M on its Creator plan. Google Cloud TTS supports Czech at $16/1M. Audexum is €24.17/1M on the Pro plan with a free tier, and renders the Czech ř correctly.

Czech SaaS and startup ecosystem

Prague's growing tech hub produces many apps that need Czech TTS for accessibility, onboarding narration, and user notifications, often on bootstrap budgets.

Audexum integrates as a single REST endpoint, no SDK required. Send your Czech text, receive WAV audio. The free tier (2,000 free credits + 250/day) covers prototyping; paid plans start at €12/month.

First Czech audio in 60 seconds.

The Czech language code is cs. Pass it as the lang parameter.

All 10 voices (M1 to M5, F1 to F5) support Czech. Full API reference: audexum.com/docs.

cURL
curl -X POST https://audexum.com/api/synthesize \
  -H "Authorization: Bearer $AUDEXUM_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "Vítejte v Audexum.",
    "voice": "F1",
    "lang": "cs"
  }' \
  --output output.wav
Python
import requests

response = requests.post(
    "https://audexum.com/api/synthesize",
    headers={
        "Authorization": f"Bearer {AUDEXUM_KEY}",
        "Content-Type": "application/json",
    },
    json={
        "text": "Vítejte v Audexum.",
        "voice": "F1",
        "lang": "cs",
    },
)
response.raise_for_status()

with open("output.wav", "wb") as f:
    f.write(response.content)

Czech costs the same as English.

No language surcharge. Czech is included on every plan at the same rate as any other language. Pack credits never expire, and dictation uses the same balance.

Full pricing details
Free
€0
2,000 + 250/day
Creator
€12/mo
480,000 / mo
Pro
€29/mo
1,200,000 / mo
Scale
€49/mo
4,000,000 / mo
Business
€149/mo
15,000,000 / mo
Credit packs
€7
250,000, never expire

Czech TTS questions

Does Audexum render the Czech ř phoneme correctly?

Yes. Czech ř (the voiced alveolar trill-fricative) is one of the hardest sounds for TTS models. Audexum renders it as the distinct Czech phoneme, not as a plain r, which is critical for intelligibility and naturalness.

Is Czech on the free tier?

Yes. Czech is available on the free plan (2,000 credits + 250 a day), no credit card required. Enough to build and demo a Czech-language accessibility feature.

Which TTS providers support Czech?

Czech support varies in price more than in availability. ElevenLabs covers Czech on Multilingual v2 at roughly $182/1M. Google Cloud TTS supports it at $16/1M. Audexum is €24.17/1M on the Pro plan with ř correctly rendered and a free tier for testing.

Can I switch between Czech and Slovak in the same API integration?

Yes. Czech and Slovak use the same Audexum REST endpoint: just change the `lang` parameter from `cs` to `sk`. No separate API key or endpoint required.

Audexum speaks 32 languages.

Switch language with one parameter. Same endpoint, same price.

Slovak TTS skPolish TTS plSlovenian TTS slHungarian TTS hu

See the full language list in the API docs or the multilingual TTS guide.

Try Czech TTS free.

Create free accountAPI reference