Bolna.ai
Bolna.ai — Open-source voice agent framework for building multilingual telephone AI assistants with telephony integration.
Our Verdict
The pragmatic OSS alternative when Vapi and Retell feel too closed or expensive.
Pros
- Open-source — avoids vendor lock-in
- Multilingual telephony out of the box
- Twilio and Plivo integrations ready
Cons
- Self-hosting requires ops investment
- Latency depends on underlying LLM choice
- Community smaller than Vapi or Retell
Best for: Teams building phone agents who want code ownership and multilingual reach
Not for: Non-technical teams that need a turnkey hosted voice agent
When to Use Bolna.ai
Good fit if you need
- Building multilingual telephone AI assistants with open-source stack
- Integrating voice agents with Twilio or SIP telephony systems
- Running automated outbound call campaigns with AI voice
- Prototyping conversational IVR replacements for SMBs
Lock-in Assessment
Low 5/5
Lock-in Score 5/5
Pricing
Price wrong?Bolna.ai Pricing
- Pricing Model
- free
- Free Tier
- Yes
- Entry Price
- —
- Enterprise Available
- No
- Transparency Score
- —
Beta — estimates may differ from actual pricing
1,000
1001K10K100K1M
Estimated Monthly Cost
$25
Estimated Annual Cost
$300
Estimates are approximate and may not reflect current pricing. Always check the official pricing page.
Community Discussion
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