Tyler Weitzman
Tyler Weitzman
Co-Founder & Head of AI, Speechify

Tyler Weitzman is co-founder and Head of AI at Speechify. He has spent the past decade building the speech-synthesis stack that powers millions of users. Tyler writes about the engineering of real-time conversational systems — text-to-speech, speech recognition, latency budgets, model serving, and the architectural choices that separate prototypes from production-grade voice agents.

Articles by Tyler Weitzman (73)

📊 Guides & Trends

Open-Source vs Proprietary Voice Agent Stacks

Open-Source vs Proprietary Voice Agent Stacks. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Apr 12, 2026 · 4 min
📊 Guides & Trends

Build vs Buy: When to Build Your Own Voice Agent

Build vs Buy: When to Build Your Own Voice Agent. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Apr 11, 2026 · 4 min
📊 Guides & Trends

ElevenLabs vs Vapi vs Retell: A Technical Comparison

ElevenLabs vs Vapi vs Retell: A Technical Comparison. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Apr 10, 2026 · 4 min
🔌 Integrations

How to Integrate Voice Agents with a Custom REST API

How to Integrate Voice Agents with a Custom REST API. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 30, 2026 · 4 min
🔌 Integrations

Connecting Voice Agents to Snowflake or BigQuery

Connecting Voice Agents to Snowflake or BigQuery. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 29, 2026 · 4 min
🔌 Integrations

SIP vs WebRTC for Voice Agents

SIP vs WebRTC for Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 28, 2026 · 4 min
🔌 Integrations

Bring Your Own Twilio: Pros, Cons, and Setup

Bring Your Own Twilio: Pros, Cons, and Setup. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 27, 2026 · 4 min
🔌 Integrations

How to Use Twilio Studio with AI Voice Agents

How to Use Twilio Studio with AI Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 27, 2026 · 4 min
🔌 Integrations

Connecting Voice Agents to Stripe for Payments

Connecting Voice Agents to Stripe for Payments. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 26, 2026 · 4 min
🔌 Integrations

Webhooks 101 for Voice Agents

Webhooks 101 for Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 24, 2026 · 4 min
🔌 Integrations

SIP Trunking 101 for Voice Agent Builders

SIP Trunking 101 for Voice Agent Builders. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 22, 2026 · 4 min
🔌 Integrations

Twilio + Voice Agents: A Complete Guide

Twilio + Voice Agents: A Complete Guide. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 21, 2026 · 4 min
🔊 Speech Tech

How to Benchmark a Voice Agent's End-to-End Latency

How to Benchmark a Voice Agent's End-to-End Latency. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 21, 2026 · 4 min
🔊 Speech Tech

Whisper vs Deepgram vs ElevenLabs STT

Whisper vs Deepgram vs ElevenLabs STT. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 20, 2026 · 4 min
🔊 Speech Tech

Streaming Audio Over WebRTC for Voice Agents

Streaming Audio Over WebRTC for Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 20, 2026 · 4 min
🔊 Speech Tech

Comparing Neural TTS Architectures

Comparing Neural TTS Architectures. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 19, 2026 · 4 min
🔊 Speech Tech

Phoneme-Level Tuning for Voice Agents

Phoneme-Level Tuning for Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 19, 2026 · 4 min
🔊 Speech Tech

Why Some Voices Sound Robotic Even in 2026

Why Some Voices Sound Robotic Even in 2026. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 18, 2026 · 4 min
🔊 Speech Tech

Echo Cancellation in Real-Time Voice AI

Echo Cancellation in Real-Time Voice AI. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 17, 2026 · 4 min
🔊 Speech Tech

How Sample Rate Affects Voice Agent Quality

How Sample Rate Affects Voice Agent Quality. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 17, 2026 · 4 min
🔊 Speech Tech

How Background Noise Affects Voice Agent Accuracy

How Background Noise Affects Voice Agent Accuracy. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 16, 2026 · 4 min
🔊 Speech Tech

Audio Codecs for Voice Agents: Opus, PCMU, and More

Audio Codecs for Voice Agents: Opus, PCMU, and More. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 16, 2026 · 4 min
🔊 Speech Tech

Diarization: Knowing Who's Speaking in a Voice Conversation

Diarization: Knowing Who's Speaking in a Voice Conversation. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 15, 2026 · 4 min
🔊 Speech Tech

Voice Activity Detection in Production Voice Agents

Voice Activity Detection in Production Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 14, 2026 · 4 min
🔊 Speech Tech

The Engineering Behind Sub-Second Voice Agents

The Engineering Behind Sub-Second Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 14, 2026 · 4 min
🔊 Speech Tech

How STT Handles Disfluencies and Filler Words

How STT Handles Disfluencies and Filler Words. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 13, 2026 · 4 min
🔊 Speech Tech

Multilingual TTS: Choosing a Voice Model

Multilingual TTS: Choosing a Voice Model. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 13, 2026 · 4 min
🔊 Speech Tech

Why TTS Quality Plateaus and How to Push Past It

Why TTS Quality Plateaus and How to Push Past It. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 12, 2026 · 4 min
🔊 Speech Tech

How TTS Models Handle Numbers, Dates, and Acronyms

How TTS Models Handle Numbers, Dates, and Acronyms. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 12, 2026 · 4 min
🔊 Speech Tech

Streaming STT: How to Cut Recognition Latency

Streaming STT: How to Cut Recognition Latency. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 11, 2026 · 4 min
🔊 Speech Tech

Streaming TTS: How to Cut First-Audio Latency

Streaming TTS: How to Cut First-Audio Latency. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 11, 2026 · 4 min
🔊 Speech Tech

Latency Engineering for Real-Time Voice Agents

Latency Engineering for Real-Time Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 10, 2026 · 4 min
🔊 Speech Tech

Voice Cloning: How It Works and Why It Matters

Voice Cloning: How It Works and Why It Matters. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 9, 2026 · 4 min
🔊 Speech Tech

Speech-to-Text Word Error Rate Explained

Speech-to-Text Word Error Rate Explained. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 9, 2026 · 4 min
🔊 Speech Tech

Text-to-Speech in 2026: The State of the Art

Text-to-Speech in 2026: The State of the Art. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Mar 8, 2026 · 4 min
📞 Outbound

DTMF and IVR Navigation for Outbound Voice Agents

DTMF and IVR Navigation for Outbound Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Feb 15, 2026 · 4 min
🧠 LLMs

How to Handle Personally Identifiable Information in Voice Agents

How to Handle Personally Identifiable Information in Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 25, 2026 · 4 min
🧠 LLMs

Open-Source vs Closed-Source LLMs for Voice Agents

Open-Source vs Closed-Source LLMs for Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 24, 2026 · 4 min
🧠 LLMs

How LLMs Decide What to Say Next in a Voice Conversation

How LLMs Decide What to Say Next in a Voice Conversation. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 23, 2026 · 4 min
🧠 LLMs

Red-Teaming Your Voice Agent

Red-Teaming Your Voice Agent. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 23, 2026 · 4 min
🧠 LLMs

Building a Conversation Memory Layer for Voice Agents

Building a Conversation Memory Layer for Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 22, 2026 · 4 min
🧠 LLMs

Why Context Windows Matter Less Than You Think for Voice

Why Context Windows Matter Less Than You Think for Voice. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 22, 2026 · 4 min
🧠 LLMs

How to A/B Test Voice Agent Prompts

How to A/B Test Voice Agent Prompts. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 21, 2026 · 4 min
🧠 LLMs

Streaming LLM Outputs to Voice: The Engineering

Streaming LLM Outputs to Voice: The Engineering. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 20, 2026 · 4 min
🧠 LLMs

The Role of Embeddings in Voice Agent Knowledge

The Role of Embeddings in Voice Agent Knowledge. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 20, 2026 · 4 min
🧠 LLMs

How to Stop a Voice Agent from Hallucinating

How to Stop a Voice Agent from Hallucinating. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 19, 2026 · 4 min
🧠 LLMs

Multi-Agent Architectures for Customer Service

Multi-Agent Architectures for Customer Service. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 19, 2026 · 4 min
🧠 LLMs

Designing System Prompts for Multi-Turn Voice Conversations

Designing System Prompts for Multi-Turn Voice Conversations. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 18, 2026 · 4 min
🧠 LLMs

Tool Use vs Function Calling: What's the Difference?

Tool Use vs Function Calling: What's the Difference?. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 18, 2026 · 4 min
🧠 LLMs

Why Smaller LLMs Often Win for Voice Agents

Why Smaller LLMs Often Win for Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 17, 2026 · 4 min
🧠 LLMs

Guardrails for Voice Agents: A Pragmatic Take

Guardrails for Voice Agents: A Pragmatic Take. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 17, 2026 · 4 min
🧠 LLMs

Retrieval-Augmented Generation for Voice Agents

Retrieval-Augmented Generation for Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 16, 2026 · 4 min
🧠 LLMs

LLM Evaluation for Conversational Agents

LLM Evaluation for Conversational Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 16, 2026 · 4 min
🧠 LLMs

How to Give a Voice Agent Long-Term Memory

How to Give a Voice Agent Long-Term Memory. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 15, 2026 · 4 min
🧠 LLMs

Prompt Engineering for Voice (vs Text) Agents

Prompt Engineering for Voice (vs Text) Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 15, 2026 · 4 min
🧠 LLMs

Function Calling for Voice Agents: A Practical Guide

Function Calling for Voice Agents: A Practical Guide. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 14, 2026 · 4 min
🧠 LLMs

How Large Language Models Power Voice Agents

How Large Language Models Power Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 14, 2026 · 10 min
🎙️ Fundamentals

The Hidden Complexity of Numbers in Voice Agents

The Hidden Complexity of Numbers in Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 13, 2026 · 4 min
🎙️ Fundamentals

How Voice Agents Handle Accents and Dialects

How Voice Agents Handle Accents and Dialects. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 13, 2026 · 4 min
🎙️ Fundamentals

How to Measure Voice Agent Quality

How to Measure Voice Agent Quality. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 12, 2026 · 4 min
🎙️ Fundamentals

How Voice Agents Recover from Misunderstandings

How Voice Agents Recover from Misunderstandings. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 10, 2026 · 4 min
🎙️ Fundamentals

The Difference Between Streaming and Non-Streaming Voice Agents

The Difference Between Streaming and Non-Streaming Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 9, 2026 · 4 min
🎙️ Fundamentals

How Voice Agents Decide When to Stop Talking

How Voice Agents Decide When to Stop Talking. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 9, 2026 · 4 min
🎙️ Fundamentals

Synchronous vs Asynchronous Voice Agents

Synchronous vs Asynchronous Voice Agents. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 8, 2026 · 4 min
🎙️ Fundamentals

What Makes a Voice Agent "Production Ready"

What Makes a Voice Agent "Production Ready". A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 8, 2026 · 4 min
🎙️ Fundamentals

Why Voice Agents Sound More Human Every Year

Why Voice Agents Sound More Human Every Year. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 7, 2026 · 4 min
🎙️ Fundamentals

How Voice Agents Differ from Voice Assistants

How Voice Agents Differ from Voice Assistants. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 7, 2026 · 4 min
🎙️ Fundamentals

How Voice Agents Handle Interruptions Gracefully

How Voice Agents Handle Interruptions Gracefully. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 4, 2026 · 4 min
🎙️ Fundamentals

The Anatomy of a Voice Agent Pipeline

The Anatomy of a Voice Agent Pipeline. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 4, 2026 · 9 min
🎙️ Fundamentals

Turn-Taking and Barge-In: The Mechanics of Natural Conversation

Turn-Taking and Barge-In: The Mechanics of Natural Conversation. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 3, 2026 · 4 min
🎙️ Fundamentals

Latency in Voice AI: Why Sub-500ms Matters

Latency in Voice AI: Why Sub-500ms Matters. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 3, 2026 · 9 min
🎙️ Fundamentals

Voice Agents vs Chatbots: When to Use Which

Voice Agents vs Chatbots: When to Use Which. A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 2, 2026 · 4 min
🎙️ Fundamentals

How a Conversational Voice Agent Actually Works (Under the Hood)

How a Conversational Voice Agent Actually Works (Under the Hood). A practical, vendor-neutral guide for teams building or buying voice AI agents.

Tyler Weitzman · Jan 1, 2026 · 9 min