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Credits are the standard unit of measurement for Kombai usage. The number of credits a task consumes depends on its complexity, length, and Agent Variant used. Credits are primarily consumed based on LLM tokens (used for tasks like planning and output generation) during active task processing. Actions like viewing completed tasks or previewing output in the browser do not consume credits. You will not be charged credits for tasks that fail due to a technical issue on our end. We are continuously working to optimize system efficiency to reduce the number of credits consumed per task.

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Credit usage and Agent Variants

Agent Variants allow you to control the trade-off between performance (quality, capabilities, speed) and credit consumption. The variant you select applies a specific cost factor to the base credit usage of a task.
VariantCost FactorBest For
Ultra2xBest for hard tasks and deep reasoning. Uses Opus 4.6
High1x (baseline)Complex problem-solving and reasoning
Medium0.5xBalancing cost-efficiency with quality
Mini0.33xHigh-volume, low-complexity tasks
For example, a task that consumes 10 credits using the High variant would consume approximately 5 credits with Medium and 3.3 credits with Mini.
You can switch between Agent Variants in further conversations within the same chat to optimize credit usage for different stages of development.

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Usage examples

Here are some examples showing how credit usage depends on the task type and its complexity:

UI improvements

Multiple UI refinements including removing hover states, improving heading styles, and adding visual separators.Complexity: Easy
Input: Text
Messages in Thread: 1
Agent Variant: Mini
Credits used: 13

CloudHub Event Page

A conversion-focused event page for CloudHub featuring schedule timeline, speaker spotlight, FAQ section, and registration CTAs.Complexity: Medium
Input: Text
Messages in Thread: 1
Agent Variant: Medium
Credits used: 83

Web Builder Deployment

A deployment page for WebBuilder with platform selection, configuration management, environment variables, and deployment history with rollback.Complexity: Advanced
Input: Text
Messages in Thread: 4
Agent Variant: High
Credits used: 224

Zentube Creator Mode

A creator mode for the YouTube clone- ZenTube, enabling users to upload videos, manage content, view analytics, and moderate community interactions alongside existing viewer features.Complexity: Complex
Input: Text
Number of Threads: 2
Agent Variant: High
Credits used: 431

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Get more credits

Users on free plan can get more credits by upgrading to the Pro plan. You can opt for a monthly credit bundle as part of the Pro plan. Once the current bundle is exhausted, you can renew the plan with the same or a different bundle.
Monthly creditsMonthly billingAnnual billingExtra credits
2,000$20$192 ($16/month)0% extra credits
4,200$40$384 ($32/month)5% extra credits
6,400$60$576 ($48/month)6.67% extra credits
8,700$80$768 ($64/month)8.75% extra credits
11,000$100$960 ($80/month)10% extra credits
22,000$200$1,920 ($160/month)10% extra credits
33,000$300$2,880 ($240/month)10% extra credits
44,000$400$3,840 ($320/month)10% extra credits
55,000$500$4,800 ($400/month)10% extra credits
110,000$1,000$9,600 ($800/month)10% extra credits

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Buy one-time credits

Pro users can purchase one-time credit packs that are added to their account immediately. You can also buy multiple packs at once.
PackPrice
1,000 credits$11
10,000 credits$110
  1. Launch Kombai extension in your IDE and sign-in.
  2. Click at the top.
  3. In the Buy one-time credits section, select the number of credit packs you want to purchase.
  4. Click Buy credits.
  5. Complete the payment in Stripe’s portal.
Purchased one-time credits are subject to the same rollover limits as your plan credits (up to 5x your monthly credit limit for Pro users). They remain in your account until consumed, the rollover limit is reached, or the plan is cancelled.

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Check credit usage

You can track the credit usage history for all your Kombai chats on the Credit Logs page. You can also check the credits consumed in an individual chat at the end of that conversation.
  1. Click the icon on top.
  2. Click Credit Logs.
You will see the remaining credits in your plan and your credit usage history.
Click at the end of a conversation. A popover will open, displaying the number of credits used in that chat.

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Check allocated credits

  1. Click the icon on top.
  2. Click Credit Logs.
  3. Click Allocation.

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Credit rollovers

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Users on free plan

  • For users on free plan, unused credits roll over at the start of each month.

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Users on paid plans

  • For users on monthly plan, unused credits roll over at the end of each billing cycle.
  • For users on annual plan, unused credits roll over every month on the same date they purchased the plan.
  • For users upgrading from free plan to a paid plan, unused credits will roll over to the new plan.
  • For users upgrading from a paid plan to a higher paid plan, unused credits will roll over to the new plan.

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Users who cancel their plan

  • For users who cancel their plan, up to 150 unused credits will roll over to the free plan.

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Rollover limits

  • Free plan: Unused credits can roll over up to 150 credits (0.5x the monthly limit).
  • Monthly plans: Unused credits can roll over up to 5x the monthly credit limit.
  • Annual plans: Unused credits can roll over up to 12x the monthly credit limit (equivalent to the annual limit).
  • Team plan: All unused credits will roll over the team’s billing cycle renewal date without any limit.

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FAQs

All new users receive 150 credits upon signing up. Free plan users also receive 50 credits per day, up to a maximum of 300 credits each month.
Your monthly credit limit refreshes on the same date and time your subscription started.
The “credits used” displayed after each message represents the total cumulative credit usage for the entire chat. It includes credits consumed by all messages within that conversation.