# Bolna Review

> Bolna review: Open-source voice-agent orchestration with a hosted platform priced for Indian-language call volume. Verified pricing, features, and the.

Open-source voice-agent orchestration with a hosted platform priced for Indian-language call volume.

Among the 13 voice ai tools we track, Bolna has the 3rd-highest included concurrency and the 6th-lowest latency - a fit for high-traffic deployments and real-time, conversational apps.

From $0.06/min · facts verified Jul 30, 2026

## What we know about Bolna

Bolna is a voice ai platform: open-source voice-agent orchestration with a hosted platform priced for Indian-language call volume. This profile tracks every Bolna fact we have verified, each linked to a primary source and dated.

On pricing, Bolna starts at $0.06 per minute for its entry tier. That is the sticker rate: real production cost usually runs higher once you add a language model, a voice provider, and telephony minutes.

New Bolna accounts get $5 in free credits on signup to test with before a card is required, which is enough to run a handful of real calls and judge latency and voice quality for your own script rather than a demo.

On capabilities, Bolna covers llm/tts costs passed through at cost?, bring-your-own llm, bring-your-own tts voice, native outbound campaigns, warm transfer to human, and built-in knowledge base. Each of those is verified against Bolna's own docs or dashboard, not marketing copy.

On performance, Bolna reports a median end-to-end latency around 300 ms (vendor claim) and 100 concurrent calls concurrent calls on the base plan. Latency figures are vendor claims until we measure them ourselves, and they are labeled that way on the Bolna fact sheet, so treat them as a starting point rather than a guarantee.

Placed against the 13 voice ai tools we track, Bolna's strongest showing is the 3rd-highest included concurrency, while it trails at 24th on languages - a spread worth weighing against your own priorities.

In total we track 19 verified facts for Bolna today, each linking the primary source it came from so you can check our work - and vendor claims we have not measured ourselves are labeled as such on the Bolna fact sheet below.

## Bolna pricing

≈ $0.06 per minute all-in (est.), verified Jul 30, 2026 ([source](https://www.bolna.ai/pricing)).

| Monthly volume | All-in monthly bill |
| --- | --- |
| 1K min/mo | $60 |
| 10K min/mo | $600 |
| 100K min/mo | $6,000 |

All-in monthly: platform fee + per-minute + telephony. Assumes GPT-4o class model, ElevenLabs voice.

## Fact sheet

### Pricing

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Base price / min | $0.06 | Jul 30 | [source](https://www.bolna.ai/pricing) |
| Concurrency limit (base) | 100 concurrent calls | Jul 30 | [source](https://www.bolna.ai/pricing) |
| Free tier credit | $5 in free credits on signup | Jul 30 | [source](https://www.bolna.ai/pricing) |
| Telephony cost / min (or passthrough?) | $0.00 | Jul 30 | [source](https://www.bolna.ai) |
| LLM/TTS costs passed through at cost? | ✓  Yes | Jul 30 | [source](https://www.bolna.ai/pricing) |

### Capabilities

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Median e2e latency | ~300 ms (vendor claim) | Jul 30 | [source](https://www.bolna.ai) |
| Bring-your-own LLM | ✓  Yes | Jul 30 | [source](https://github.com/bolna-ai/bolna) |
| Bring-your-own TTS voice | ✓  Yes | Jul 30 | [source](https://github.com/bolna-ai/bolna) |
| Native outbound campaigns | ✓  Yes | Jul 30 | [source](https://www.bolna.ai) |
| Warm transfer to human | ✓  Yes | Jul 30 | [source](https://www.bolna.ai) |
| Built-in knowledge base | ✓  Yes | Jul 30 | [source](https://www.bolna.ai) |
| Languages supported | 10 languages (10+, India-focused) | Jul 30 | [source](https://www.bolna.ai) |

### Compliance & trust

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Open-source license | MIT | Jul 30 | [source](https://github.com/bolna-ai/bolna) |
| Self-host / on-prem option | ✓  Yes | Jul 30 | [source](https://github.com/bolna-ai/bolna) |

### Build experience

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| No-code agent builder | ✓  Yes | Jul 30 | [source](https://www.bolna.ai) |
| API-first (full lifecycle via API) | ✓  Yes | Jul 30 | [source](https://github.com/bolna-ai/bolna) |
| Native integrations count (+ key ones: GHL, HubSpot, Zapier, Make, Twilio) | n8n, Make, Zapier; Twilio, Plivo, Vobiz | Jul 30 | [source](https://www.bolna.ai) |

### Commercial

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Self-serve signup | ✓  Yes | Jul 30 | [source](https://www.bolna.ai/pricing) |
| Funding stage (credibility signal) | Seed, $6.3M (led by General Catalyst); Y Combinator-backed | Jul 30 | [source](https://www.bolna.ai) |

## Bolna head-to-head

| Comparison | Record | Per use case |
| --- | --- | --- |
| [Bolna vs Vapi](https://www.versusref.com/voice-ai/bolna-vs-vapi/) | won 1 · lost 2 · tied 1 | No-code agency deploys: lost; Ecommerce support and orders: lost; Healthcare compliance: tie; Outbound sales campaigns: won |

Source: https://www.versusref.com/voice-ai/tools/bolna/