The Top Vapi Alternative

Build conversational Voice AI Agents on Telnyx with transparent pricing, global telephony, and AI infrastructure designed for production performance. Move from Vapi to Telnyx in minutes.

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Customer Logo Replicant
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Customer Logo Talkdesk

Owned infrastructure makes the difference

Telnyx owns and operates its own infrastructure, which minimizes latency and enhances call quality in ways that Vapi cannot match.
By running AI processing and media handling on a privately owned global IP network, Telnyx avoids the delays and congestion of the public internet. Traffic stays anchored near end users, delivering sub-second round-trip times for real-time voice AI.
This level of control ensures consistent, high-quality interactions at scale while eliminating dependency on third-party networks that introduce variability and slow down conversations.

COMPARISON

Compare our features

Telnyx logo

As a globally licensed carrier, we own our numbers and network. Full regulatory compliance is built in. One-click integration handles everything.

Depends on third parties. Integrates with providers like Telnyx, adding extra hops from vendor to vendor.

Pricing comparison

Compare our pricing

Telnyx logo

Pay-as-you-go self-service or volume-based pricing contracts.

Pay-as-you-go usage based pricing or enterprise annual contracts.

WHY TELNYX?

Everything Voice AI needs on one platform

Skip the multi-vendor complexity. Telnyx handles infrastructure end-to-end—you, so you can focus on the customer experience.

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Cost-effective AI agents

Telnyx pricing for base rate is budget friendly. Need more volume? Committed-use discounts on STT and TTS lower your costs further as you scale. No surprise add-ons for telephony, no per-seat fees, no middlemen taking a cut.

Telnyx API sample code

Speech-to-text

Telnyx gives you access to multiple STT engines, such as Deepgram, Google, Azure, and our own engine, so you can pick the best fit for your language, accuracy, or cost needs. Switch providers anytime without rebuilding your stack. When a better model comes out, swap it in.

Text-to-speech

Access ElevenLabs, Azure Neural, AWS, MiniMax, ResembleAI, Telnyx NaturalHD and Ultra, and other leading engines. Over 100 languages and variants mean you can reach more customers in their native language and respond faster in any market. Switch providers anytime without rebuilding. No lock-in, no migration headaches.

One-click telephony integration

Telnyx is a licensed carrier with local numbers in 140+ countries. Purchase a number and assign it to your AI agent instantly. No third-party telephony provider to configure, no extra contracts, no integration headaches. Your agent is live on the PSTN in minutes.

Low-latency voice

Most voice AI stacks route calls through 4 to 5 separate providers, including telephony, STT, LLM, TTS, orchestration, adding latency at every hop. Telnyx runs everything on one network. Audio enters, gets processed, and returns without leaving our infrastructure. The result: sub-200ms round-trip times that keep conversations natural.

Noise suppression

Crystal-clear audio is the foundation of great customer experience. Telnyx noise suppression and HD Voice codecs filter out background noise before it reaches your agent, so conversations feel natural, and customer names, account numbers, and key details are captured accurately the first time.

Context-rich conversations

Give your Voice AI Agent access to custom tools and over 30 pre-built integrations across 13 categories, including Salesforce, HubSpot, ServiceNow, Calendly, Jira, and more. Pull customer data into calls, trigger actions in real time, and personalize every conversation with live context.

Better voice infrastructure starts with Telnyx.

No rebuilds. Sub-200ms latency, simpler operations, and predictable costs. Production-ready Voice AI in weeks.