Retell AI alternatives · AI Agents
Retell AI alternatives with a Linux app
The Retell AI listing does not include a Linux app. 16 of the 101 other AI agents in this directory list a Linux app.
Retell AI is a paid product with a free trial, starting at $0 to start, then $0.07 to $0.31 per minute for voice agents. 13 of them are free or have a free plan.
16 tools · Listings checked up to Nov 12, 2026 · Where the facts come from
The 12 closest to Retell AI
- Free plan · from $20/mo
Devin
Autonomous software engineer that runs in the cloud or locally
- Devin starts at $20 per month. Retell AI starts at $0 to start, then $0.07 to $0.31 per minute for voice agents.
- Devin has a free plan. Retell AI does not, though it has a free trial.
- Only Devin lists macOS, Windows and Linux apps.
- Retell AI also covers chatbots.
- Free plan · from $20/mo
Factory
Coding agents called Droids for desktop, terminal and web
- Factory starts at $20 per individual / month (billing basis not stated). Retell AI starts at $0 to start, then $0.07 to $0.31 per minute for voice agents.
- Factory has a free plan. Retell AI does not, though it has a free trial.
- Only Factory lists macOS, Windows and Linux apps.
- Factory also covers workflow automation.
- Free trial · from $18/mo
Zo Computer
Always-on personal cloud computer run by an AI agent
- Zo Computer starts at $18 per month (Basic). Retell AI starts at $0 to start, then $0.07 to $0.31 per minute for voice agents.
- Only Zo Computer lists macOS, Windows and Linux apps.
- Zo Computer also covers chat assistant, workflow automation and app builder.
- Retell AI also covers chatbots.
- Free plan · from $50/mo
Kortix
Open-source platform for running AI agents from a git repo you own
- Kortix starts at $50 per month for 5,000 credits (Credits), with unlimited members. Retell AI starts at $0 to start, then $0.07 to $0.31 per minute for voice agents.
- Kortix has a free plan. Retell AI does not, though it has a free trial.
- Only Kortix lists macOS, Windows, Linux, iOS and Android apps.
- Kortix is open source and self-hostable, according to its own site.
- Free
goose
Open-source AI agent with a desktop app, CLI and API
- goose is free. Retell AI starts at $0 to start, then $0.07 to $0.31 per minute for voice agents.
- goose has a free plan. Retell AI does not, though it has a free trial.
- Only goose lists macOS, Windows and Linux apps.
- Only Retell AI lists a web app.
- Free plan
Langflow
Open-source visual builder for AI agents and MCP servers
- Langflow has a free plan. Retell AI does not, though it has a free trial.
- Only Langflow lists macOS, Windows and Linux apps.
- Langflow is open source and self-hostable, according to its own site.
- Langflow also covers templates.
- Free plan · from $20/mo
Amp
Coding agent that runs in cloud machines it calls orbs
- Amp starts at $20 per month (Megawatt tier). Retell AI starts at $0 to start, then $0.07 to $0.31 per minute for voice agents.
- Amp has a free plan. Retell AI does not, though it has a free trial.
- Only Amp lists macOS, Windows, Linux, iOS and Android apps.
- Amp also covers workflow automation.
- From $19/mo
Cosine
Coding agent for terminal, desktop and cloud, with sovereign models
- Cosine starts at $19 per month, including 4M credits. Retell AI starts at $0 to start, then $0.07 to $0.31 per minute for voice agents.
- Only Cosine lists macOS, Windows and Linux apps.
- Cosine also covers workflow automation.
- Retell AI also covers chatbots.
- Free
OpenClaw
Open-source personal AI agent you run yourself and message in chat
- OpenClaw is free. Retell AI starts at $0 to start, then $0.07 to $0.31 per minute for voice agents.
- OpenClaw has a free plan. Retell AI does not, though it has a free trial.
- Only OpenClaw lists macOS, Windows, Linux, iOS and Android apps.
- OpenClaw is open source and self-hostable, according to its own site.
- Free plan · from $19.99/mo
Genspark
AI workspace with an agent for research, slides, sheets and docs
- Genspark starts at $19.99 per month, billed annually at $239.99 (Plus). Retell AI starts at $0 to start, then $0.07 to $0.31 per minute for voice agents.
- Genspark has a free plan. Retell AI does not, though it has a free trial.
- Only Genspark lists macOS, Windows, Linux, iOS and Android apps.
- Only Genspark lists a browser extension.
- Free plan · from $20/mo
Hermes Agent
Open-source AI agent with persistent memory and a messaging gateway
- Hermes Agent starts at $20 per month for the optional Nous Portal Plus tier; the agent is free. Retell AI starts at $0 to start, then $0.07 to $0.31 per minute for voice agents.
- Hermes Agent has a free plan. Retell AI does not, though it has a free trial.
- Only Hermes Agent lists macOS, Windows and Linux apps.
- Hermes Agent is open source and self-hostable, according to its own site.
- Free
NanoClaw
Open-source personal AI agent that runs in containers you host
- NanoClaw is free. Retell AI starts at $0 to start, then $0.07 to $0.31 per minute for voice agents.
- NanoClaw has a free plan. Retell AI does not, though it has a free trial.
- Only NanoClaw lists macOS, Linux and Windows apps.
- Only Retell AI lists a web app.
Common questions
Which Retell AI alternatives have a Linux app?
Devin, Factory, Zo Computer, Kortix, goose, Langflow, Amp, Cosine and 8 more list a Linux app.
Does Retell AI have a Linux app?
The Retell AI listing does not include a Linux app. It lists Web.
Which of these AI agents are free?
Devin, Factory, Kortix, goose, Langflow, Amp, OpenClaw, Genspark and 5 more are free or have a free plan.
When was this checked?
Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 12, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.
This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Retell AI: the alternatives its listing names first, then the tools that share the most features with it.