Telnyx Voice AI review

Telnyx is the pick for builders who want fewer vendors in the call path. It is a licensed carrier in 45+ countries, runs LLM inference on its own GPUs and bundles orchestration, speech-to-text and text-to-speech into a $0.05 per minute voice engine. LLM tokens are billed per token at Telnyx's GPU rates and telephony at carrier cost, starting at $0.0032 per minute for SIP inbound, and Telnyx estimates a production agent near $0.06 per minute. Pay as you go already includes 500 concurrent calls, 80+ languages and full-stack tracing with latency breakdowns, and A-level STIR/SHAKEN attestation helps eligible US outbound calls avoid spam labels. Two details matter when you model costs: the voice engine rounds each call to 60-second increments, so short calls cost more than the headline rate suggests, and support on pay as you go is community only until you commit to the $2,000 per month Growth plan.

Who it is for

Builders who want carrier, speech and inference on one invoice

Price

Pay as you go at $0.05 per minute for orchestration, speech-to-text and text-to-speech; LLM tokens and telephony extra.

$0.05 per minute. No fine print.
Quoted from the vendor pricing page on November 12, 2026.

Key features

• Voice engine covering orchestration, speech-to-text and text-to-speech in one rate
• Licensed carrier in 45+ countries with local caller identity
• A-level STIR/SHAKEN attestation for eligible US outbound calls
• LLM inference on Telnyx-owned GPUs with OpenAI-compatible endpoints
• Full-stack observability with end-to-end tracing and latency breakdown

Strengths and weaknesses

• Strength: Pay as you go includes 500 concurrent calls
• Strength: US local numbers cost $1.00 a month
• Strength: SIP trunking inbound from $0.0032 per minute
• Weakness: Voice engine charges round to 60-second increments, which raises the cost of short calls
• Weakness: Pay as you go support is community only
• Weakness: Discounts on voice, messaging and numbers need a $2,000 monthly minimum spend

Key facts

• Voice engine: $0.05 per minute
• Concurrent calls: 500 on pay as you go
• Languages: 80+ languages and dialects
• Carrier coverage: Licensed carrier in 45+ countries

Where it ranks

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