B3 Voice vs Retell AI
Retell AI is a pay-as-you-go voice agent platform with batch calling. B3 Voice sells configured campaign bots per unit. Compared on setup, pricing and support model.
Retell AI is a pay-as-you-go voice agent platform: no platform fee, per-minute billing, batch calling and transfer built in, with you configuring the agent. B3 Voice sells a configured bot per campaign at a flat monthly price, built by our team from your script and approved by you before it dials.
Credit where it is due
What Retell AI does well
Retell AI is the easiest infrastructure platform to start on: free minutes, no platform fee, batch calling and branded caller ID out of the box, and a genuinely quick path from signup to a working outbound agent. For a team that wants to experiment this week without a procurement conversation, it is hard to beat.
The difference
Where B3 Voice differs
B3 Voice hands you a finished campaign bot rather than the tools to build one. The script, the disqualifiers, the transfer rules and the dialer hooks are configured by our team and signed off by you on a recorded test call against your own list.
Side by side
Capability by capability
Each row names which product has the edge, or says the two are broadly even. Rows where Retell AI leads are marked that way and are not dressed up as anything else.
Pricing checked on 3 October 2026.Retell AI changes its published rates from time to time, check their pricing page before you decide on cost alone.
Time to first test call
Retell AI- B3 Voice
- Days, configured and approved
- Retell AI
- Minutes, self-serve
Who builds the flow
B3 Voice- B3 Voice
- Our team, from your script
- Retell AI
- You do
Pricing model
Even- B3 Voice
- Fronter $40, verifier $50 per bot per month. Unlimited calls, 1% off from 30 bots, 3% from 50, 5% from 100, minimum 15.
- Retell AI
- Per minute, no platform fee
Free trial
Retell AI- B3 Voice
- No, a recorded approval call instead
- Retell AI
- Free minutes on signup
Campaign templates
B3 Voice- B3 Voice
- Six campaigns, fronter and verifier
- Retell AI
- Build your own
Transfer
Even- B3 Voice
- Yes
- Retell AI
- Yes
Which one should you choose?
There is a real buyer for Retell AI and a real buyer for B3 Voice. These lists are written to send the wrong one away.
Choose Retell AI if
- You want to be testing something this afternoon with no conversation
- You are comfortable configuring the agent and the prompts yourself
- Your volumes are low enough that per-minute pricing stays cheap
Choose B3 Voice if
- You want the campaign built for you rather than assembled by you
- You are running a full shift and need a predictable unit cost
- You need verification bots as well as fronters
Retell AI questions, answered
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Run our bots on your own campaign next to what you use today and compare the transfers. Message us on WhatsApp to set it up.