SpecialistAll-in-one mobile and web video editor equipped with built-in AI avatar and captioning tools.
#1HeyGen records 7,000,070 monthly visits with +9.4% month-over-month growth and Freemium pricing. Speko records 20,954 monthly visits with -7.9% growth and Paid, Contact for Pricing pricing.

The provider-neutral router and platform for voice AI agents
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | app.heygen.com | speko.ai |
| Pricing Model | Freemium | Paid, Contact for Pricing |
| Monthly Visits | 7M (7,000,070) | 20.95K (20,954) |
| MoM Traffic Delta |
| +599.16K (+9.4%) |
| -1.8K (-7.9%) |
| Primary Market & Share | 🇺🇸 United States (18.5%) | 🇺🇸 United States (62.2%) |
|---|
| Direct Visits / mo | 4.1M | 5.93K |
|---|
| User Rating | 4.8 | 4.4 |
|---|
| Supported Platforms | Website | Website |
|---|

Turn scripts into studio-quality AI avatar videos in minutes
Choose from 500+ stock presenters, use photo avatars, or train a custom Video Avatar that looks and sounds like you, then generate narrated videos straight from a script.
Localize one recording into 175+ languages and dialects with editable scripts, brand glossaries, voice switching and proofreading seats for native-language review.
An agentic workflow expands ideas into finished videos, with access to leading generative models for video and image generation on higher plans.
Add quizzes, branching and decision points, embed videos by link, and export SCORM packages so content drops straight into corporate learning systems.

The provider-neutral router and platform for voice AI agents
STT, LLM and TTS are selected per language based on an independent benchmark covering 89 models across 18 languages, with pre-response failover.
Design a call step by step, plug calendars, CRMs, your APIs and docs into any step, then run it with inbound, outbound and call-list support.
Draft agents are tested against simulated callers, including red-team scenarios that try to break the flow, before they go live.
Every live call is scored against checks you write in everyday language, for example reading back a date or never quoting a price.
SpecialistAll-in-one mobile and web video editor equipped with built-in AI avatar and captioning tools.
#1Free / Open-sourceAI audio platform for speech, agents, music and dubbing
#2SpecialistOffers browser-based video creation with AI avatar and voice generation tools.
Provides accessible AI avatar video creation and talking-head templates, featuring a generous free tier but simpler editing tools.
Industry-leading AI avatar creator focusing on corporate training and presentations, though with a different template selection and pricing structure.

Real-time voice AI models and agents you can build on
Free / Open-sourceReal-time speech-to-text, text-to-speech and voice agents in one API platform
Xiaomi's multimodal model family for reasoning, vision and voice

SpecialistSpecializes in interactive conversational video agents with personalized memory, going beyond HeyGen's pre-rendered presenter videos.
Free / Open-sourceBuild, test, and deploy production-grade voice AI agents over API
Focuses on real-time conversational digital humans and talking-head videos, offering stronger interactive capabilities than HeyGen's studio builder.

Free / Open-sourceSpeech-to-text and voice intelligence APIs for developers

SpecialistAll-in-one mobile and web video editor equipped with built-in AI avatar and captioning tools.
Free / Open-sourceAI audio platform for speech, agents, music and dubbing
SpecialistOffers browser-based video creation with AI avatar and voice generation tools.
Provides accessible AI avatar video creation and talking-head templates, featuring a generous free tier but simpler editing tools.
Industry-leading AI avatar creator focusing on corporate training and presentations, though with a different template selection and pricing structure.
Free / Open-sourceReal-time speech-to-text, text-to-speech and voice agents in one API platform
SpecialistSpecializes in interactive conversational video agents with personalized memory, going beyond HeyGen's pre-rendered presenter videos.
Focuses on real-time conversational digital humans and talking-head videos, offering stronger interactive capabilities than HeyGen's studio builder.
Free / Open-sourceSpeech-to-text and voice intelligence APIs for developers