Gladia STT Cost Calculator
Enter async and real-time audio hours per month, pick Solaria-1 or Solaria-3 and any add-ons. The calculator applies Gladia's volume tier for your total monthly hours, real-time at 0.68€/h, per-hour add-ons, optional 50€ free credits and top-up bonus, and converts to USD with an editable rate. Estimates only; gladia.io/pricing prevails.
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Monthly total
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Effective rate
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Breakdown
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Formula: monthly € = async hours × tier rate + real-time hours × 0.68€ + hours × add-ons, minus free credits, divided by (1 + top-up bonus); USD = € × your exchange rate. The async rate is set by total monthly volume — Solaria-1 / Solaria-3 per hour: 0–100 h 0.27 / 0.16€; 100–500 h 0.26 / 0.15€; 500–2,000 h 0.24 / 0.14€; 2,000–5,000 h 0.23 / 0.13€; 5,000–10,000 h 0.22 / 0.13€; 10,000 h+ 0.21 / 0.12€. Example: 500 h on Solaria-3 = 500 × 0.15€ = 75€. Add-ons work on async and real-time except PII redaction (async only). Gladia also sells audio-to-LLM from 0.20€ / 1.25€ per 1M tokens (not modeled).
Estimates only. Official list prices as of 2026-11-01 (Asia/Shanghai); the provider's pricing page prevails. Sources: Gladia pricing
Other speech-to-text APIs: Deepgram API Cost Calculator · AssemblyAI Cost Calculator · OpenAI Transcription Cost Calculator
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- Voice AI Agent Platform Cost Comparison Vapi vs Retell vs Bland → $/min and $/mo.
- TTS API Cost Comparison OpenAI vs ElevenLabs vs Gemini vs Cartesia TTS.
How it works
- How much does Gladia cost per hour?
- Async (pre-recorded) Solaria-3 starts at 0.16€/hour and Solaria-1 at 0.27€/hour, falling with monthly volume to 0.12€ and 0.21€ above 10,000 hours. Real-time transcription is 0.68€/hour. New accounts get 50€ of free credits valid for one year.
- What does 500 hours a month cost on Gladia?
- 500 hours falls in the 100–500 h tier: Solaria-3 0.15€/h × 500 = 75€ (≈ $81 at 1.08 USD/EUR); Solaria-1 0.26€ × 500 = 130€.
- How do Gladia volume tiers work?
- The rate is set by your total monthly hours: 0–100 h, 100–500 h, 500–2,000 h, 2,000–5,000 h, 5,000–10,000 h and 10,000 h+. This calculator applies the tier rate to all async hours.
- What do Gladia add-ons and top-up bonuses cost?
- Add-ons per audio hour: summarization 0.03€, sentiment 0.02€, translation 0.05€, named entity recognition 0.07€, PII redaction 0.07€ (async only). Top-ups earn bonus credits: +10% at 1,000€, +15% at 2,500€, +20% at 5,000€ and above.
- How does Gladia compare with Deepgram, AssemblyAI and OpenAI?
- Gladia prices in euros per hour, while Deepgram, AssemblyAI and OpenAI list USD per minute or hour. Convert with the EUR→USD field and compare $ per minute using the linked calculators.