AI agent builders · #26 of 34 · ↑ Bland · ↓ Semantic Kernel
Retell AI
Retell AI shows up in just 5 of 71 answers across AI assistants, landing an overall score of 4 out of 100. Gemini rates it highest at 7, followed by ChatGPT and Claude at 5 each, with Perplexity lowest at 3. Its one standout moment is voice: it's named in all 4 of 4 answers to "What's the best platform to build a voice AI agent?" Outside that lane, it barely registers, appearing in only 1 of 4 answers for non-technical founders and never showing up for MCP tools, developer frameworks, startup deployment, self-hosting, or general "best AI agent builder" questions.
this is mine claim it, free, forever. We also check whether ChatGPT and Claude can read retellai.com.
Who's talking about you
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 5 | 5% of answers | #1.0 |
| Claude | 5 | 10% of answers | #7.5 |
| Gemini | 7 | 8% of answers | #2.0 |
| Perplexity | 3 | 5% of answers | #6.0 |
Questions you win
| question | named in | best spot |
|---|---|---|
| What's the best platform to build a voice AI agent? | 4 of 4 | #1 |
| Which AI agent platform is best for a non-technical founder? | 1 of 4 | #13 |
Questions you lose
| question | who got named instead |
|---|---|
| What are the best platforms for building AI agents? | LangChain, OpenAI AgentKit, CrewAI |
| What's the best AI agent builder in 2026? | LangChain, CrewAI, Microsoft AutoGen |
| What's the best no-code tool to build an AI agent? | n8n, Zapier Agents, Relevance AI |
| Which AI agent framework should a developer choose? | LangChain, OpenAI AgentKit, Vertex AI Agent Builder |
| What are the best open-source AI agent frameworks? | LangChain, CrewAI, OpenAI AgentKit |
| What's the best platform to build and deploy AI agents for a startup? | LangChain, OpenAI AgentKit, CrewAI |
| What's the best tool for building multi-agent systems? | LangChain, CrewAI, OpenAI AgentKit |
| Which AI agent platform has the best pricing for a small team? | Taskade Genesis, Microsoft Copilot Studio, n8n |
| What's the most reliable platform to run AI agents in production? | LangChain, Amazon Bedrock AgentCore, xpander.ai |
| What's the best tool to build an AI agent that answers customer emails? | Voiceflow, Relevance AI, Lindy |
| What's the best platform to build an AI agent that connects to my company's data? | Microsoft Copilot Studio, Amazon Bedrock AgentCore |
| What's the best tool to automate a business workflow with AI agents? | Zapier Agents, n8n, Make |
| What's the best tool to build an AI agent that browses the web and does research? | LangChain, CrewAI |
| What's the best way to give an AI agent memory across sessions? | LangChain, Letta |
| What's the best platform to build AI agents that use MCP tools? | OpenAI AgentKit, LangChain, Microsoft Agent Framework |
| What's the best self-hosted platform for running AI agents privately? | Dify, LangChain, Flowise |
| What's the best tool to monitor and debug AI agents in production? | LangChain |
| What's the best platform for an agency building AI agents for clients? | LangChain, Amazon Bedrock AgentCore, Botpress |
Assistants cited 12 pages for questions in this category that name your rivals and not you. Claim to see them. See all sources for AI agent builders.
In their words
- ChatGPT“A phone-based AI agent quickly | Retell AI or Vapi | Fast deployment, telephony, agent tooling”
- Claude“Retell AI — similar niche, often praised for call-center-style workflows and its dashboard.”
- Gemini“Retell AI: Very similar to Vapi, focusing heavily on realistic conversational flow and natural interruptions (backchanneling).”
Closest rivals
- Retell AI vs Bland4
- Retell AI vs Semantic Kernel4
- Retell AI vs Gumloop5
- Retell AI vs Langflow5
- Retell AI vs Letta3
All Retell AI alternatives · Full AI agent builders leaderboard · Sources