Compare · Verified October 2026
Every major voice AI provider, priced and compared.
List prices, languages and dialect coverage for text to speech, speech to text and voice agents, each linked to the page it came from. Where a competitor is cheaper, the table says so.
Text to speech and speech to text
Speech models for Indian languages.
| Provider | TTS price | TTS languages | Indian dialects | STT price | |
|---|---|---|---|---|---|
| Sonex Labs (Pāṇini, Valmiki) | $0.03125 / 1K chars | 250+ | Yes | $0.00525/min, per second | source |
| Sarvam (Bulbul, Saaras) | ₹2–3 / 1K chars (~$0.021–0.031) | Up to 11 | No | ₹0.49/min (~$0.0051) | source |
| ElevenLabs (v4, Scribe) | $0.04–0.08 / 1K chars | 90+ | No | $0.0065/min realtime | source |
| Cartesia (Sonic, Ink) | $38–65 / 1M chars overage | 44 | No | ~$0.0065/min | source |
| Deepgram (Aura-2, Nova-3) | $0.030 / 1K chars | 7, none Indian | No | $0.0058/min multilingual (promotional) | source |
| Smallest.ai (Lightning, Pulse) | ~$0.09/min | 12–31 | No | ~$0.009/min | source |
| Murf (Falcon) | $0.01 / 1K chars (another Murf page says $0.01/min) | 35 | No | No STT API | source |
| Gnani.ai | Not published | 10–12 (secondary sources differ) | No | Not published | source |
Voice agents
What a minute of an AI phone call costs.
Headline prices rarely include everything. The third column says what is in the number.
| Platform | Per minute | Includes | |
|---|---|---|---|
| Sonex Labs | $0.055/min | STT, TTS, telephony on Sonex numbers; own LLM key at zero markup | source |
| Sarvam Voice Agents | ₹3.00–3.50/min (~$0.031–0.036) | Speech, language and voice models; telephony extra | source |
| Vapi | $0.05/min + providers | Hosting only; STT, LLM, TTS, telephony at cost | source |
| Retell AI | $0.07–0.31/min | Voice infra + chosen LLM and TTS + telephony | source |
| Bland AI | $0.12–0.14/min | LLM, STT, TTS; telephony extra; Build plan $299/mo | source |
| Bolna | ~$0.06/min | Built-in models; telephony and platform fee extra | source |
| Ringg AI | ₹6/connected min (~$0.0625) | STT, TTS, LLM, telephony | source |
| Smallest.ai Atoms | $0.09–0.21/min | Depends on models; numbers $10/mo | source |
| Cartesia Agents | $0.06/min + $0.014 telephony | LLM free for a limited time | source |
| Deepgram Voice Agent | $0.075/min ($0.065 own LLM) | STT, TTS, LLM | source |
| ElevenLabs Agents | $0.08/min | LLM billed on top; no ElevenLabs telephony fee, your carrier bills you | source |
INR converted at ₹96 per US dollar for comparison only. Prices exclude GST and taxes.
Head to head
Detailed comparisons.
- Sonex Labs vs Sarvam AI: which fits your Indian voice product?
- ElevenLabs alternative for Indian languages, phone calls and volume: Sonex Labs compared
- Sarvam vs ElevenLabs vs Sonex Labs for Indian-language text to speech
- Cartesia alternative: Sonex Labs vs Cartesia for multilingual voice agents
- Sonex Labs vs Deepgram: which fits a team that needs Indian languages in both directions? (2026)
- Sonex Labs vs Vapi: what a voice agent really costs, and where each one fits (2026)
- Sonex Labs vs Retell AI: builder, cost and language coverage compared (2026)
- Smallest.ai vs Sonex Labs: languages, accuracy evidence and real monthly cost (2026)
- TTSMaker alternative for Hindi and regional voice-overs: Sonex Labs compared
Price your own call volume.
Enter your monthly minutes and see Sonex Labs next to a do-it-yourself stack.