Telnyx Voice AI review

Telnyx is a telecom carrier, and its voice AI offer is priced like one. The voice engine costs $0.05 per minute and includes orchestration, hosted speech-to-text and text-to-speech; LLM tokens are billed at Telnyx GPU rates (the page puts its Kimi model at about $0.006 per minute) or at Anthropic and OpenAI rates, and telephony starts at $0.0032 per minute. Telnyx estimates a production agent at about $0.06 per minute all in. Pay as you go allows 500 concurrent calls, far more than other self-serve plans here, and US numbers cost $1 a month. Agents can use 1,300+ voices through the TTS router and connect to 30+ pre-built integrations. For agencies, the appeal is one vendor for numbers, SMS and the agent. Two caveats: the voice engine rounds each call up to 60 seconds, which raises the cost of short calls, and the builder is more developer-oriented than the dashboards of Retell or ElevenLabs.

Who it is for

Developers and agencies running high call volumes who want carrier telephony, inference and the agent on one invoice.

Price

Pay as you go: $0.05 per minute for orchestration, STT and TTS; LLM tokens at GPU rates; telephony from $0.0032 per minute.

$0.05 per minute. No fine print.
Quoted from the vendor pricing page on November 7, 2026.

Key features

• One rate for orchestration, speech-to-text and text-to-speech
• LLMs on Telnyx-owned GPUs or managed Anthropic and OpenAI models
• Owned carrier network with SIP trunking and global numbers
• 1,300+ voices across providers through a TTS router
• 30+ pre-built integrations across 13 categories

Strengths and weaknesses

• Strength: 500 concurrent calls on pay as you go
• Strength: Telephony at carrier cost from $0.0032 per minute
• Strength: One invoice for numbers, calls, models and the agent
• Weakness: Voice engine charges round each call up to 60-second increments
• Weakness: Volume discounts need a $2,000 monthly minimum
• Weakness: Fewer no-code builder features than Retell or ElevenLabs

Key facts

• Concurrent calls: 500 on pay as you go
• Growth plan: $2,000 monthly minimum, 15% off voice, messaging and numbers
• US local numbers: $1.00 per month

Where it ranks

Telnyx Voice AI is No. 4 in our Best AI Voice Agent Platforms verdict.