NLPearl vs Retell AI: Features, Pricing and User Reviews 2026
What are NLPearl and Retell AI?
NLPearl is a platform for building AI agents that talk and text with your customers like a real team member would. Instead of a robotic phone tree, the agents hold natural back and forth conversations over the phone or through channels like SMS and WhatsApp.
You describe the agent you want in plain language using a built in tool called PearlVibe, and it sets up the conversation flow, rules, and knowledge base for you. The agent can then book appointments, send messages, update your systems, and hand off to a human when needed.
NLPearl works for support lines, sales calls, and outbound campaigns across industries like e-commerce, healthcare, finance, and real estate, and it keeps a shared memory of each customer across voice and text.
Retell AI is a voice AI platform that helps you build, test, and launch AI voice agents that sound natural and humanlike on the phone, instead of stiff menu based systems.
You can build agents with a visual flow builder or simple prompts, then connect them to your phone numbers, CRM, and other tools to handle real calls.
Pricing works on a pay as you go basis, so you only pay for the voice minutes or chat messages you actually use, with a separate custom priced Enterprise plan for bigger teams.
It is built for contact centers, healthcare scheduling, sales outreach, and support teams that need AI to handle high call volumes.
Features of NLPearl and Retell AI
Natural, low latency voice conversations
PearlVibe agent builder from a prompt
Text agents for SMS, WhatsApp, Telegram
Booking, transfers, and CRM actions
Twilio and custom VoIP support
100+ integrations and API access
Real time analytics and transcripts
GDPR and SOC 2 security
Humanlike voice agents with natural turn taking
Visual flow builder and prompt based agents
Knowledge base and real time function calling
SIP trunking and bring your own telephony
Batch calling and outbound campaigns
Native CRM sync with Salesforce and HubSpot
Live call monitoring and AI QA analyst
Simulation and A/B testing tools
HIPAA, GDPR, and SOC 2 compliance
Pay as you go usage based pricing
Use Cases of NLPearl and Retell AI
Pricing of NLPearl and Retell AI
NLPearl offers four plans built around included credits and agents, with usage priced per minute for voice and per message for text.
Starter ($50/month): 2,500 credits, 1 agent, $0.18 per minute voice, and $0.05 per message text.
Companion ($195/month): The most popular plan, with 15,000 credits, 5 agents, $0.16 per minute voice, and 2 extra users.
Manager ($779/month): 65,000 credits, 10 agents, $0.13 per minute voice, 5 extra users, and guided onboarding.
Enterprise (Custom): Custom concurrent agents, dedicated servers, rates as low as $0.09 per minute, priority support, and single sign-on.
Every plan includes Twilio, custom VoIP, booking, and API access, with security features like GDPR, SOC 2, and data encryption included by default.
Retell AI uses a pay as you go pricing model, so you only pay for what you use, with $10 in free credits to get started and no upfront commitment.
Voice Agents: Priced at roughly $0.07 to $0.31 per minute, based on the LLM, voice, and telephony you choose.
Chat Agents: Priced from about $0.002 per AI message, depending on the model used.
Included Extras: 20 free concurrent calls, 10 free knowledge bases, call analytics, simulation testing, webhooks, and API access.
Add-ons: Extra concurrency, knowledge bases, phone numbers, SMS, and quality features like PII redaction cost a small amount more per minute or per month.
For larger organizations, the Enterprise plan offers custom pricing with dedicated servers, single sign on, custom contracts, and 24/7 support.
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