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Butter AI uses a credit-based pricing model with optional subscription tiers for advanced features. You pay a small platform fee per minute plus the direct cost of the AI providers you choose.

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Subscription Plans

Choose the plan that fits your scale.
Pro Plan Savings: The Pro plan lowers the platform fee from 0.02to0.02 to 0.0125 per minute. If you process over 10,500 minutes per month, the savings on the platform fee alone pay for the subscription.

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Provider Costs (Pass-through)

We pass through the costs from AI providers directly to you with zero markup. You can mix and match providers to optimize for cost or quality.

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Language Models (LLM)

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Text-to-Speech (TTS)

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Speech-to-Text (STT)

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Example Cost Calculation

Scenario: You are on the Starter Plan and handle 1,000 minutes of calls using a “Balanced” stack.
  • Stack: GPT-4o Mini + Deepgram Aura + Deepgram Nova-2
  • Provider Cost: ~0.60(LLM)+ 0.60 (LLM) + ~1.35 (TTS) + 5.90(STT)=∗∗5.90 (STT) = **7.85**
  • Platform Fee: 1,000 min * 0.02=∗∗0.02 = **20.00**
  • Total Monthly Cost: $27.85

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Billing and Payments

Butter AI uses Dodo Payments as our secure payment provider to handle all transactions.

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How Credits Work (/api/billing/credits/purchase)

  • $1 = 1,000 Credits: Simple conversion rate. You purchase credits that are drawn down as you use the platform.
  • Buy Anytime: Top up your balance whenever you need via the billing dashboard. The purchase flow creates a one-time Dodo checkout session.
  • All Plans: Starter, Pro, and Enterprise users can purchase credits at any time.

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Subscribing to Pro (/api/billing/subscribe)

Upgrading to the Pro plan creates a recurring subscription via Dodo Payments.
  • Cost: $79.00/month.
  • Benefits: Unlocks the 0.0125/minutelowerplatformfee,25concurrentcalls,90−dayretention,andgivesyou0.0125/minute lower platform fee, 25 concurrent calls, 90-day retention, and gives you 50 of included credits each month.
  • Flow: Initiating an upgrade routes you to a Dodo checkout session to securely set up your recurring payment.

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Customer Portal (/api/billing/portal)

Manage your payment methods and subscriptions easily:
  • Access: All paying users can access the Dodo Customer Portal.
  • Capabilities: Update your payment method, view and download past invoices, and cancel your active subscription directly from the portal.