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What is Coldi?

Coldi is an AI-powered voice engagement platform engineered to sound convincingly human while driving measurable improvements in sales, support, and outreach performance. Its AI talkers analyze tone, intent, and context in real time, allowing them to respond fluidly and hold persuasive, lifelike conversations. Businesses can deploy Coldi agents for lead qualification, customer service, appointment booking, surveys, billing reminders, and product introductions—all without adding new staff. The platform integrates with major systems including HubSpot, Calendly, Zapier, N8N, Slack, SendGrid, and Google Sheets, enabling end-to-end workflow automation. Coldi’s telephony capabilities cover dozens of countries and offer the flexibility to use its own network or external providers like Twilio and Aircall. Users can choose from a library of 15 AI voices to match the tone, personality, and branding of their business. Inoperation dashboards provide full visibility over call outcomes, agent performance, and campaign trends. With its ability to engage thousands of leads simultaneously, Coldi dramatically improves speed-to-contact and reduces the risk of missed follow-ups. Customer results highlight improvements in conversion rates, cost reductions, and service consistency across high-volume calling operations. Coldi ultimately becomes an always-on, brand-trained voice team that scales instantly and delivers human-quality conversations at industrial speed.

What is Azure Text to Speech?

Develop applications and services that emulate human-like communication, distinguishing your brand with a customized and genuine voice generator that provides an array of vocal styles and emotional tones tailored to your specific requirements, be it for text-to-speech functionalities or customer service bots. Attain fluid and natural-sounding speech that reflects the subtleties of human dialogue, allowing for a more immersive user experience. You have the flexibility to personalize the voice output by adjusting elements like speed, tone, clarity, and pauses to align with your needs. Connect with a wide variety of audiences around the world by utilizing an impressive collection of 400 neural voices available in 140 languages and dialects. Revolutionize your applications, spanning from text readers to voice-activated assistants, with mesmerizing and realistic vocal renditions. Additionally, Neural Text to Speech includes a range of speaking styles, such as newscasting or customer service interactions, and can express various tones—from shouting to whispering—as well as emotional states like joy and sadness, significantly enhancing user engagement. This adaptability guarantees that every interaction is not only customized but also deeply engaging for the user. With these capabilities, your applications can truly transform the way users connect with technology.

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Integrations Supported

Azure AI Content Safety
Azure AI Services
Calendly
Expertflow Contact Center
Google Sheets
HubSpot CRM
HubSpot Customer Platform
Medeo
PubNub
SendGrid
Slack
Smart IVR
Twilio
Wordspilot
Zapier
n8n
voximplant

Integrations Supported

Azure AI Content Safety
Azure AI Services
Calendly
Expertflow Contact Center
Google Sheets
HubSpot CRM
HubSpot Customer Platform
Medeo
PubNub
SendGrid
Slack
Smart IVR
Twilio
Wordspilot
Zapier
n8n
voximplant

API Availability

Has API

API Availability

Has API

Pricing Information

$299/month
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Coldi AI

Date Founded

2025

Company Location

Israel

Company Website

coldi.ai/

Company Facts

Organization Name

Microsoft

Date Founded

1975

Company Location

United States

Company Website

azure.microsoft.com/en-us/services/cognitive-services/text-to-speech/

Categories and Features

Categories and Features

Text to Speech

API
Adjust Speaking Rate / Pitch
Audio Optimization
Custom Lexicons
Different Voice Choices
Multi-Language Support
Synchronize Speech

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