200 Free Minutes: What's Included in Burki's Trial
Two hundred minutes.
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Published: January 19, 2026 Reading time: 9 minutes
Two hundred minutes.
When I first signed up for Burki, I assumed there was a catch. Maybe the free tier was limited to one TTS provider. Maybe the good LLM models were locked behind a paywall. Maybe the "free" phone number would be some unusable test line.
Nope. It is all there. Every feature. Every provider. Every capability.
I have tested a lot of voice AI platforms this year. Most offer 10-15 minutes of free credits, which is just enough time to realize the platform might work before you hit a paywall. Vapi gives you roughly 15 minutes. Retell offers a limited trial. Bland and others are similarly restrictive.
Burki gives you 200 minutes. That is 13 times more than Vapi. And they throw in a free phone number for 30 days.
This is not a typo. This is not a limited-time promotion. This is just how they operate.
Let me walk you through exactly what those 200 minutes include and what you can realistically build with them.
What Is Included in the 200 Free Minutes
Here is what surprised me: the trial includes literally everything.
Full Platform Access
Your 200 free minutes are "unified minutes," meaning they cover both platform orchestration and carrier costs. You are not paying anything out of pocket. The credits apply to:
- Platform fees (the $0.03/minute orchestration cost)
- Telephony costs (inbound and outbound calling)
- Provider costs if using managed mode (LLM, TTS, STT)
This is unusual. Most platforms make you bring your own API keys during trials, which means you are still paying OpenAI or ElevenLabs even if the platform is "free." Burki covers everything.
Every AI Provider
You get access to the full provider roster:
LLM Providers:
- OpenAI (GPT-4o, GPT-4o-mini, GPT-4 Turbo)
- Anthropic (Claude 3.5 Sonnet, Claude 3 Opus, Claude 3 Haiku)
- Google (Gemini Pro, Gemini 1.5 Pro, Gemini Flash)
- xAI (Grok-2, Grok-2-mini)
- Groq (Llama 3, Mixtral)
- Azure OpenAI
Text-to-Speech:
- ElevenLabs (including voice cloning)
- Deepgram Aura
- Cartesia
- OpenAI TTS
- Azure Speech
- And more
Speech-to-Text:
- Deepgram Nova 2, Nova 3, and Flux
- Azure Speech
There is no "premium tier" provider restriction. Want to test ElevenLabs' most realistic voices with Claude 3.5 Sonnet? Go for it. Want to compare Deepgram Aura against OpenAI TTS for your use case? You have the credits to do both.
A Real Phone Number
This is the part that made me realize Burki actually wants you to build something during the trial.
On signup, you get a free phone number for 30 days. Not a test number. A real, functioning US phone number that people can call. It is automatically configured with webhooks and ready to receive calls immediately.
This means you can go from "I just created an account" to "people are calling my AI assistant" in about 15 minutes. No Twilio setup. No webhook configuration. No carrier account required.
All Features Unlocked
The trial is not feature-gated. You have access to:
- Call recording and transcription with full conversation logs
- Knowledge base (RAG) for document-grounded responses
- Voice cloning if you want to create a custom voice
- Multi-assistant orchestration for complex call flows
- Custom tools including HTTP APIs and Python functions
- Real-time analytics and cost tracking
- IVR Explorer to map existing phone trees
The only limitation is the 200-minute credit balance. Once you exhaust it, you need to add funds. But until then, you have a fully production-capable platform at your disposal.
What You Can Build With 200 Minutes
Two hundred minutes sounds like a lot until you start thinking about testing scenarios. Let me break down what is actually possible.
Scenario 1: Customer Support Bot Proof of Concept
Goal: Build a support bot that can handle common customer questions.
What you need:
- Upload your FAQ document to the knowledge base
- Configure an assistant with appropriate personality
- Set up transfer rules for questions the bot cannot handle
- Test with real calls
Estimated usage:
- Initial testing and iteration: 30-40 minutes
- Team demonstration calls: 20-30 minutes
- User testing with real customers: 50-60 minutes
- Buffer for refinement: 50-80 minutes
Verdict: Completely achievable. You can build, test, iterate, demo to stakeholders, and run a pilot with actual customers, all within the trial.
Scenario 2: Appointment Booking System
Goal: Create a voice AI that schedules appointments with calendar integration.
What you need:
- Build a custom tool that integrates with your calendar API
- Configure conversation flow for collecting booking details
- Set up structured data extraction for appointment information
- Test the full booking workflow
Estimated usage:
- Tool development and testing: 40-50 minutes
- Conversation flow refinement: 30-40 minutes
- Integration testing: 30-40 minutes
- End-to-end validation: 30-40 minutes
Verdict: You can build a working prototype and validate the entire workflow. The structured data extraction feature captures booking details in JSON format, ready for your backend.
Scenario 3: Outbound Sales Qualification
Goal: Test AI-driven outbound calls for lead qualification.
What you need:
- Configure an assistant with your sales script
- Upload lead context to the knowledge base
- Set up campaign with test contacts
- Analyze results and iterate
Estimated usage:
- Initial configuration: 20-30 minutes
- Test calls to yourself and team: 30-40 minutes
- Small pilot campaign (20 leads): 60-80 minutes
- Analysis and iteration: 30-50 minutes
Verdict: You can run a meaningful pilot campaign and gather real data on conversion rates, call duration, and qualification accuracy.
Scenario 4: IVR Replacement Exploration
Goal: Map your existing IVR and prototype an AI replacement.
What you need:
- Use IVR Explorer to map your current phone tree
- One-click convert to AI assistant
- Customize and enhance the generated assistant
- Compare caller experience
Estimated usage:
- IVR exploration: 15-30 minutes
- Assistant customization: 30-40 minutes
- A/B testing between old and new: 60-80 minutes
- Stakeholder demos: 30-40 minutes
Verdict: You can map an entire IVR system and have a working AI replacement ready for comparison testing.
No Credit Card Required
I want to emphasize this because it is increasingly rare: you do not need to enter payment information to start the trial.
Sign up with your email. Verify your account. Start building.
There is no "free trial that automatically converts to paid" trap. There are no surprise charges. When your 200 minutes run out, the platform simply stops working until you add funds. You remain in full control.
This matters for several reasons:
For developers: You can evaluate the platform without procurement approval or expense reports.
For agencies: You can test Burki for client projects without committing budget before knowing if it works.
For enterprises: You can run a technical evaluation without engaging finance or legal.
The trial is designed to let you validate your use case, not to lock you into billing.
The Upgrade Path
So what happens when the trial ends?
You have options depending on how you want to manage costs.
Managed Mode (Simplest)
Add funds to your wallet and Burki handles everything. You pay:
- $0.03/minute platform fee
- Provider costs with a 15% markup (LLM, TTS, STT)
- Telephony at pass-through rates
This is the easiest path. One bill. No API key management. No provider accounts to maintain.
BYO Mode (Most Cost-Effective)
Bring your own API keys from OpenAI, Anthropic, ElevenLabs, Deepgram, and others. You pay:
- $0.03/minute platform fee only
- Direct rates from each provider
At scale, BYO mode saves significant money because you avoid the platform markup on provider costs. For a startup doing 10,000 minutes per month, this can save $200-300 monthly.
Hybrid Mode (Flexible)
Mix managed and BYO based on your preferences. Use your own OpenAI key but let Burki manage ElevenLabs. Or vice versa. The platform handles both seamlessly.
There is no minimum commitment in any mode. You can run 10 minutes or 10,000 minutes at the same rates. No bulk purchases. No annual contracts unless you want enterprise pricing.
How Burki's Trial Compares to Competitors
Let me put those 200 minutes in context.
| Platform | Free Trial | Phone Number | Credit Card Required |
|---|---|---|---|
| Burki | 200 minutes | Yes (30 days free) | No |
| Vapi | ~15 minutes | No | Yes |
| Retell | Limited | No | Yes |
| Bland | Limited | No | Yes |
| Synthflow | Limited | No | Yes |
Burki offers 13x more trial minutes than Vapi. And the free phone number means you can test with real inbound calls immediately.
Why does this matter?
15 minutes is not enough to validate anything meaningful. You can barely configure an assistant, make a few test calls, and realize you need to tweak the prompt before your credits are gone. You are flying blind into a purchase decision.
200 minutes is enough to build a production prototype. You can iterate multiple times. You can run user tests. You can demo to stakeholders. You can make an informed decision based on real results, not hypothetical promises.
Getting Started: The 15-Minute Quickstart
Ready to use those 200 minutes? Here is the fastest path to a working voice AI:
Step 1: Create Your Account (2 minutes)
Go to burki.dev/signup and create an account with your email. No credit card. No demo request form. Just sign up.
Step 2: Get Your Free Phone Number (1 minute)
On signup, Burki provisions a free US phone number for your account. It is already configured and ready to receive calls.
Step 3: Create Your First Assistant (5 minutes)
Two options here:
Voice Builder (Guided): Use the conversational setup wizard. It asks you questions about your assistant's purpose, personality, and behavior, then generates the configuration automatically. Good for first-timers.
Manual Configuration: Jump straight into the assistant editor if you know what you want. Set the system prompt, choose your LLM and voice providers, configure call handling.
For a quick start, Voice Builder is faster. You can always refine the configuration later.
Step 4: Assign Your Phone Number (1 minute)
Connect your phone number to your assistant. One click in the dashboard.
Step 5: Make Your First Call (1 minute)
Call your phone number from your cell phone. Talk to your AI. See how it responds. Note what works and what needs improvement.
Step 6: Iterate and Improve (ongoing)
Now the real work begins. Refine your system prompt. Add documents to the knowledge base. Configure custom tools. Test with different scenarios.
This is where having 200 minutes matters. You have room to experiment, fail, learn, and improve. By the time your trial ends, you will know exactly whether Burki works for your use case.
Frequently Asked Questions
Do the 200 minutes expire?
No. The trial credits remain in your account until you use them. There is no 14-day deadline or artificial urgency. Take your time evaluating the platform.
What happens when I run out of trial credits?
The platform stops processing calls. No automatic charges. No surprise bills. You simply add funds when you are ready to continue.
Can I use the trial for production traffic?
Technically yes, but I would not recommend it. The trial is designed for evaluation and prototyping. Once you are ready for production, add funds and consider BYO mode for cost optimization.
Does the free phone number have any limitations?
It is a real US phone number with full capabilities. The only limitation is the 30-day period. After that, you will need to purchase a number ($1-2/month) or port your own.
Can I try voice cloning during the trial?
Yes. Voice cloning is fully available during the trial. Upload your voice samples, generate a cloned voice, and use it with any assistant.
Is HIPAA compliance available during the trial?
Yes. Burki includes HIPAA compliance and BAA at no extra cost, even during the trial. If you are in healthcare, you can evaluate with compliant infrastructure from day one.
Can I invite team members during the trial?
Yes. Burki supports multiple users per organization. Invite your team to collaborate on building and testing.
What data is collected during the trial?
Call recordings and transcripts are stored in your account and fully controlled by you. Burki does not use your data to train models or share it with third parties. You can delete everything at any time.
Start Building Today
Voice AI is one of those technologies where you need to experience it to understand it. Reading documentation and watching demos only gets you so far. You need to hear your assistant respond. You need to test edge cases. You need to see how real users interact with it.
That is why the trial matters so much.
Two hundred minutes. Every feature. Every provider. A free phone number. No credit card.
This is enough time to build something real. To validate your use case. To make an informed decision about whether voice AI belongs in your product.
Most platforms make you commit before you know what you are getting. Burki lets you prove it works first.
Start your free trial and see what you can build in 200 minutes.
Questions about the trial? Email [[email protected]](mailto:[email protected]) or check our [documentation](https://docs.burki.dev) for detailed guides.
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