Alternatives · Agents · updated Oct 27, 2026
Retell AI alternatives
Retell AI ranks #9 of 10 for voice & phone agents with an evidence score of 2/100. Its weak spot: Less room to swap models than a toolkit; you work inside their flow builder. 18 other tools are ranked for the same jobs (voice & phone agents, customer support chatbot); 13 score higher, 11 can be used free and 4 are open source. Same public signals as the ranking, recomputed nightly — nothing here is sponsored. Read the Retell AI review.
All 18 alternatives, ranked
evidence / 100
+ Self-host the whole helpdesk - the AI is an add-on, not the lock-in.
− You run the infrastructure, and the AI features need your own model key.
+ The pipeline is explicit, so interruption handling and turn-taking are yours to tune.
− A library, not a dashboard: no call logs or flow editor unless you build them.
+ WebRTC underneath means in-app and in-browser voice, not only phone calls.
− You run the media plane or pay for theirs - the framework alone is not a product.
+ Flow editor with real code escape hatches, and it deploys to WhatsApp and Slack.
− Free credits run out quickly once a bot gets traffic.
+ Agents take real actions (returns, bookings, account changes) with strong guardrails, and you pay only for resolved cases.
− Enterprise sales process and pricing; not self-serve for small businesses.
+ Built to close tickets, with QA and reporting on what it actually answered.
− Enterprise sales cycle and no self-serve tier.
+ Paste a URL and have a working embedded bot in minutes, with actions for lookups and lead capture.
− Message credits are tight on lower tiers, and answers drift when the source content is thin.
+ Among the fastest real-time transcription APIs available, with diarization and keyword boosting built in.
− Developer-only; there is no end-user app, and accuracy on heavily accented speech trails Whisper-class models.
+ Combines live chat, email inbox and the Lyro AI agent in one affordable tool with Shopify and WordPress plugins.
− Lyro conversations are metered separately, so costs climb as the bot gets busier.
+ Latency low enough for a voice agent that can be interrupted.
− Fewer polished preset voices than ElevenLabs, and it is API-first.
Why switch?
Chatwoot instead of Retell AI if
- you want the stronger public evidence (60 vs 2)
- you want open source — self-host it, read it, fork it
- you need it on android, ios, linux
Pipecat instead of Retell AI if
- you want the stronger public evidence (42 vs 2)
- you want open source — self-host it, read it, fork it
- you need it on cli, linux, mac
LiveKit Agents instead of Retell AI if
- you want the stronger public evidence (37 vs 2)
- you want open source — self-host it, read it, fork it
- you need it on cli, linux