Top 13 Retell AI Alternatives and Competitors in 2025
AI automation in 2025 is driven by autonomous agents, predictive modeling, and smarter customer service optimization through intelligent automation. On Trustpilot Retell AI average rating 3.4/5 .
Retell AI is recognized for being HIPAA-compliant, with a proprietary turn-taking model and ~500–800ms response latency that lets callers interrupt, clarify, and interact naturally. It also supports 31+ languages, making it well-suited for global use. Base pricing starts from $0.07+ /min for AI Voice Agents and for $0.002+/msg for AI Chat Agents.
But users have raised concerns about poor customer support, complexity and the closed nature of the platform. In this blog, we’ll break down Retell major drawbacks and highlight more affordable, scalable alternatives for building better voice AI solutions.
List of Alternatives
- Dograh AI
- Synthflow
- Vapi AI
- Hamming ai
- Dialogflow
- Poly AI
- Goodcall
- Voice Flow
- Lindy
- Smallest AI
- Botpress
- Replicant
- Dasha ai
Conversational AI Collective
Best Retell AI Alternative Recommendation
If you're looking to automate your conversational workflows or seeking a Retell AI alternative, here are 13 top options. We've reviewed each AI agent based on key features, pros, ideal users, challenges and pricing.
1. Dograh AI
Dograh stands out as a powerful open source alternative to Retell AI with several advantages :
- Open Source - Dograh is an open source voice ai platform giving full flexibility to developers to customize, self host and extend features.
- Easy to Use and Dependability - With AI to AI testing (over calls) and feedback loop through call summary, it is fairly easy to build extremely dependable bots with Dograh AI. Also this helps cut down on time needed to build the voice agent, and significantly improves time to market.
- LoopTalk - Think AI calling AI. Dograh’s LoopTalk auto-tests voice bots using AI-driven customer personas to simulate real-world scenarios boosting accuracy and letting you get started in minutes.
- No Double Billing - Dograh offers an open source solution to self host. And its cloud solution has transparent pricing with no double billing charges for STT, TTS and LLM.
- End-to-End Support - Dograh’s professional team offers end-to-end support from integration and workflow setup to analytics and optimization.
- Faster Setup - Dograh offers drag and drop workflow builder UI and prebuilt workflow as per your business needs.
Key Features
- NEPQ led Sales - Uses Neuro-Emotional Persuasion Questioning (NEPQ) to drive deeper engagement and guide conversations effectively.
- Real-Time Response - Dograh enables low-latency (<500ms), human-like voice conversations for seamless user interactions.
- Longer Conversation - Dograh multi-agent bots can handle calls up to 45 minutes, maintain full context throughout conversations without hallucinations.
- Human Like Speech - Pauses, Filler words & clear tone for realistic, engaging voice interactions.
- Emotionally Effective - Understand user concerns by actively empathizing and probing their pain points to deliver more personalized, effective voice interactions.
- Tailor-Made Build - Dograh experienced team offers hands-on support to help you design and deploy custom voice agents tailored to your scripts and business needs.
- Multilingual Voice Support - Support multilingual voice agents using top STT and TTS providers, enabling natural and fluent conversations for diverse global audiences.
- Expert Cloud Support - Get expert cloud support with Dograh test and refine your voice agent in real time using our intuitive, cloud-hosted interface.
- Flexible Deployment Option - Dograh supports both cloud and open-source deployments, giving you flexibility based on your business and technical needs.
- Customer Support - Dograh’s dedicated support team ensures your Voice AI runs smoothly from setup to ongoing updates with fast, reliable assistance.
- Data Privacy - Your data privacy is our top priority. Dograh’s open source solution helps adhere to strict GDPR and HIPAA standards to keep your information secure and fully compliant.
Ideal Users
- Real Estate Agent
- Customer Support
- Sales and Marketing Automation
- Tech Support
- Finance, Insurance and Banking
- E-Commerce
- Healthcare
- Logistics & Home Services
- Travel & Hospitality
Pricing
Dograh offers an open source solution without any platform charges. This makes it more cost-effective, customisable and scalable compared to Retell AI base pricing starts from $0.07+ /min for AI Voice Agents and for $0.002+/msg for AI Chat Agents.
Quick Comparison Table
Migrate from BLAND AI: Save upto 90% time with Dograh Voice AI.
Dograh offer an open-source, no-code Voice AI builder that lets you control and deploy voice agents in minutes with reliable multi-agent conversational flows.
2. Synthflow
Synthflow was founded in 2023, is a no code voice ai platform that automates phone calls using voice ai agents. It is designed for both inbound and outbound calling, handling everything from appointment booking and lead qualification to customer support. But Synthflow relies on old technology offering a single agent bot - thus making it inherently prone to hallucinations and mistakes. Synthflow is best suited for smaller and multilingual use cases.
Key Features :
- No Code Builder
- Human-Like, Low Latency Voice
- Multilingual Support
- Text-to-Speech (TTS) and advanced transcription features
- CRM Integration - HubSpot , Highlevel and Zapier
- Workflow Automation, inbound calling, outbound calling, and lead qualification
- Dedicated Customer Support
3. Vapi AI
Vapi the voice ai platform founded in 2020 by Jordan Dearsley and Nikhil Gupta, Vapi is a voice AI platform offering highly flexible, developer-focused toolsets to help businesses build, deploy and scale AI-driven voice interactions and phone agents with ease. With sub-500 ms latency and enterprise-grade security, it supports HIPAA, SOC 2, and GDPR compliance.
Key Features :
- Sub 500 ms latency
- Easy integration and light weight code
- Full AI powered pipeline (TTS/STT, LLM)
- Security and Compliance HIPAA, SOC2, GDPR compliance for enterprise-grade security
- Conversation Orchestration and Custom Flows
- 100+ languages supported out-of-the-box, strong for global use
- Analytics dashboards with real-time and historical KPI tracking
Dograh AI
Vapi AI vs Dograh AI : Which is Best For You in 2025?
4. Hamming AI
Hamming AI can scale, test and monitor AI voice agents seamlessly, from simulating thousands of calls before launch to auditing every live conversation in production. Always-on heartbeat checks catch regressions instantly, while real-world scenarios help optimize performance with actionable, AI-powered insights. The platform auto-generates diverse caller personas, including edge cases, to ensure every branch of your voice agents is tested. Simply connect your voice infrastructure, run automated tests, and start seeing insights within minutes.
Key Features :
- Real-time call analytics score every call within seconds to spot metric slips.
- 24/7 heartbeat checks with alerts for instant regression detection.
- Multilingual AI voice agents (English, French, German, Hindi, Spanish, Italian, etc.).
- Seamless integration: dial via SIP or connect directly to LiveKit/Pipecat; one-click imports from Hopper, Retell, VAPI.
- Convert live conversations into replayable test cases (audio, transcript, intent) in one click.
- Auto-generate test cases and evaluate performance, no manual setup needed.
- Edge-case and stress testing built-in.
5. Dialogflow
Dialogflow, Google’s conversational AI agent, delivers personalized self-service and natural, human-like voice experiences for highly engaging customer interactions. Powered by Google’s leading generative AI, it enables rich, intuitive conversations while ensuring predictable and safe performance through deterministic controls. It serves as a comprehensive development platform for creating both text and voice-based virtual agents.
Key Features :
- Powered by leading Generative AI
- Human like multilingual conversations
- Easily build AI agents with no code
- Personalized customer interaction
- Integrate with your own CRM and data sources
- Multimodal interaction with voice, text or images
- Out-of-the-box connectors 30+ data retrieval connectors and 70+ action connectors to allow your agent to take actions
6. Poly AI
Poly AI was founded in 2017, focuses on building natural sounding conversational AI solutions. It is extensively used in customer service environments like telecoms, hotels, banks and e-commerce.
Key Features :
- Multilingual Support 12 languages.
- Scalable and 24 / 7 support.
- Immediate response to calls to maintain customer trust.
- Provide actionable insights from real conversations.
- Seamless integration with ( AVAYA, BT etc ).
- ISO 27001-certified, GDPR, HIPPA and SOC2 Type II Security.
7. Goodcall
Goodcall AI was originally incubated in Google Area 120 under the name CallJoy and evolved into Goodcall. It is a cutting edge phone assistant that leverages the power of Chat GPT to provide seamless communication. Focuses on ethical AI usage, transparency, consent in calls, and calls human assistance when needed.
Key Features :
- 97% caller interaction rate.
- Provide easy to use interface with full control over workflows.
- HIPAA Compliant Phone AI Agents.
- Integration with Google cloud AI.
- Ethics focused AI usage.
- AI phone agents and virtual receptionist for local businesses.
8. Voice Flow
Voiceflow was founded in 2019, the company provides a platform for building conversational voice ai agents. Voiceflow is a no code platform for designing, prototyping and deploying AI chatbots and AI assistants. It allows users to build complex workflows with custom code.
Key Features :
- No Code and Collaborative Builder.
- Design, test and deploy AI-powered voice agents that are fast, human-like, and scalable.
- Build Chat Agents with deep capabilities and interface customization.
- Supports integration with existing tech stacks.
- Over 250,000 users and teams worldwide.
- Provides APIs, workflow versioning, commenting, and real-time collaboration.
9. Lindy AI
Lindy was founded in 2023 and launched in 2024, is a no code platform that allows users to create and deploy AI powered automations. Lindy offers a mission to empower the future of work by giving every team their own AI employees.
Key Features :
- Connect seamlessly with all your apps, from Gmail to HubSpot.
- Help in providing leads 200+ sources.
- Helps scale operations by offloading routine tasks to AI no extra hires needed.
- Seamlessly connects with over 1,600 applications.
- Supports sales, marketing, recruiting, support and admin teams.
- Saves time up-to 20 - 30 hours per week.
10. Smallest AI
Smallest AI was founded in 2023, the company quickly gained attention for its rapid innovation in high performance voice AI. Human-like voices and smart agents boost customer engagement, with an average call time of 130 seconds.
Key Features :
- Accurate handling of complex cases enables better automation with just 5% human fallbacks.
- Auto-dialers and verified numbers drive 80% call connectivity rate.
- Telephony Analytics Integration.
- Electron SLM, in house model trained on millions of conversation.
- Use Cases in Customer Support, Debt Collector, Interview Screening and Real Estate Agent.
11. Botpress
Botpress is a series of B companies based in Canada founded in 2016 by Sylvain Perron and Justin Watson. Botpress is an all-in-one platform for building AI agents powered by latest LLM’s. The platform provides the core infrastructure needed to build and run AI agents in production. Unlike rigid tool-calling systems, Botpress’s custom inference engine runs internally, handling complex logic, safe JavaScript execution and structured responses with no extra setup.
Key Features :
- Augment customer support workflows
- Connect to top tools and channels with ready-to-use integrations for smart workflow automation
- Integrate with existing systems
- Deliver contextual conversations
- Reduce call centres volume by 30%
- Able to reduce 65% of support tickets with 0 AI hallucinations
- Platform claim 98% resolution rate
12. Replicant
Replicant was founded in 2017 by Gadi Shamia, Jeremy Powers and Josh Lerman. The company headquarters are in San Francisco, California. The platform offers pay-as -you-go pricing that makes it easy to implement and scale conversational AI for your enterprise. The in depth ROI analysis to calculate a high degree of accuracy. The platform claims agent trained on over 55 million conversations.
Key Features :
- No Scripts, No Waits. Just a natural human like conversations
- Instantly handle calls with AI that listens, understands and acts
- Handle complex requests instantly with smart, scalable, on-brand AI
- Turn conversations into insights to improve performance
- Resolve 125k calls without agent intervention
- Platform help in A/B Testing, Tracking performance, Building new use cases and Fine-tuning AI models
- 50% reduction in agent attrition
- 90% of customers give the Replicant AI agent a positive CSAT
13. Dasha AI
Deploy conversational voice AI agents with Dasha that sound human and help drive business growth. Dasha’s production-ready technology works from day one, delivering 99.99% uptime SLA. Dash AI Pricing includes 1,000 free minutes each month, then $0.08 per minute, with unlimited concurrent calls (up to 1,000 per AI agent or more). For support, reach out at support@dasha.ai or schedule an onboarding call to get started.
Key Features :
- Go live in 30+ languages, with bots that can switch mid-call for global support.
- Instantly scale from 10 to 1,000+ concurrent calls without quality loss.
- Move from prototype to full-scale deployment with production-ready voice apps.
- Seamlessly integrate with existing VoIP, numbers, and carriers.
- Designed for sales, support, and engagement automation.
- Reliable, human-like AI interactions for industries needing scale and trust.
- Smart call routing by intent, language, or complexity; auto-detect voicemails.
- Integrate with Salesforce, HubSpot, Zendesk, and hundreds of tools.
- Clone any voice in minutes, replicate your team’s tone or build unique brand voices.
What Should You Look For In Retell AI Alternatives ?
- Pricing transparency and cost control without hidden charges.
- Ease of building a voice bot and Reliability of the bot.
- Simple Setup with No-Code/Low-Code Options.
- Clear Voice, Low Latency and Natural Speech.
- Seamless integration and workflow automation.
- Security, compliance and deployment option.
- AI-Powered Insights and Optimization with Built-In Testing Tools (e.g., LoopTalk).
Dograh AI
Top 10 Voice AI Calling Development Companies
What to Look for in a Modern Voice Orchestration Platform
Enhanced Usability and No-Code Setup
Modern AI voice platforms offer no-code/low-code visual builders, letting non-developers quickly design and deploy voice agents using drag-and-drop editors, templates and guided setup, cutting time-to-market and dev effort.
High-quality AI phone agents
A great AI voice platform delivers natural, low-latency (under 500ms) speech with realistic human-like tone, pauses, and emotional nuance, it is crucial for long, multi-turn conversations using NEPQ-led persuasion without losing context or drifting off-topic.
Transparent & Low Pricing
Transparent pricing is essential for businesses aiming to scale efficiently. Many modern AI voice platforms offer bundled pricing that includes STT, TTS and LLM usage. This eliminates hidden costs and avoids double billing issues.
Dograh AI
AI Cold Calling Real Estate Script & Best Practices | Boost Leads with Voice AI
How to Choose Between so many Retell AI Alternatives?
When selecting a Retell.ai alternative, keep these key factors in mind, and Dograh standing out across multiple areas:
- Open Source: Dograh offers cost savings, data control, and flexibility with open-source solutions.
- Reliability: Building a reliable voice bot is not trivial and hence Built-In AI Testing and self improving bots can help reduce errors and also with faster time to market.
- Budget: Choose a platform with transparent, all-in-one pricing. Dograh and Insighto.ai offer more cost-effective options compared to Retell’s layered hidden fees.
- Ease of Use: For non-technical teams, platforms like Dograh, Tabbly, and Voiceflow offer intuitive no-code, drag-and-drop builders to quickly launch voice agents.
- Scalability: If you're aiming for high-volume use, Dograh and Dasha.ai deliver strong infrastructure support and uptime performance.
- Integrations: Dograh, Tabbly, and Synthflow integrate smoothly with CRMs, ERPs, Slack and other business tools for streamlined automation.
- Multilingual Support: Dograh and Dasha.ai offer robust language capabilities, making them ideal for teams serving a global audience.
Dograh AI
The Ultimate Guide to AI Calling Implementation - By Dograh AI
Getting started with Dograh
Interested in leveraging Dograh for lead generation, cold calling or business automation ? Here’s a streamlined path to getting started, along with direct links to essential resources :
1. Sign Up for Dograh
Dograh Sign Up & Platform Homepage
2. Quick Start Instructions
How to Build AI Voice Agent - Step by Step with Dograh
This guide walks you through using Dograh’s no-code drag-and-drop builder to easily set up real estate or customer calling workflows.
3. Tutorial : No Code Voice Agent Creation
How to Build AI Voice Agent with No Code ( Step - by - Step )
Discover how to easily create agents, design workflows, and integrate CRMs using Dograh code-free, with real business examples included.
4. Book a Demo
Schedule a personalized walkthrough with Dograh experts
Book a demo to see how Dograh can support your business needs like automating real estate leads or customer support with tailored insights and a live walkthrough.
Alternative Resource
The Ultimate Guide to AI Calling Implementation by Dograh
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FAQ's
1. Who are the competitors of Retell AI ?
Competitors of Retell AI include Dasha, VAPI, and Hamming AI, but Dograh AI stands out with its multi-agent stress testing and realistic customer persona simulations for unmatched resilience.
2. What is the difference between Voiceflow and Retell ?
Voiceflow focuses on designing and prototyping conversational flows, while Retell specializes in real-time, production-ready voice agents with low-latency sub 800ms, natural interactions.
3. Are there better alternatives to Character AI ?
Alternatives to Character AI are Retell AI, Dasha AI etc. but Dograh AI stands out with its production-grade multi-agent stress testing and realistic customer persona simulations.
4. What is retell AI used for ?
Retell AI is used to build real-time conversational voice agents with low-latency (Sub 800ms), natural interactions, supporting multilingual (30+ languages), production-ready deployments.
5. What is the difference between bland and retell AI?
Bland AI focuses on outbound sales and lead-gen voice calls while Retell AI specializes in real-time, natural conversations with low-latency, multilingual support.
6. Can retell AI send SMS ?
Retell AI does support SMS through its AI chat agents at a rate of $0.002+ per message, alongside its core voice capabilities.
7. Is retell AI HIPAA ?
Yes, Retell AI offers enterprise-grade security with SOC 2 Type II compliance, HIPAA-ready infrastructure, and end-to-end encryption.
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