> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mefriend.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Understanding Coins & Subscriptions

> How coins and subscriptions work together on Mefriend

## Why Both Coins and Subscriptions?

<Callout title="The Complete Picture" emoji="💡">
  Mefriend offers **both coins and subscriptions** to give you maximum flexibility. Subscriptions provide **unlimited access** to certain AI models, while coins unlock **premium features** and **advanced models** beyond your plan's tier.
</Callout>

Think of it this way:

* **Subscriptions** = Unlimited chats with specific AI models (based on your tier)
* **Coins** = Currency for premium features and advanced models

***

## How Subscriptions Work

When you subscribe to any plan (Core, Prime, or Infinity), you get:

<CardGroup cols={2}>
  <Card title="Unlimited Model Access" icon="infinity">
    Chat endlessly with models included in your tier—no coin deductions.
  </Card>

  <Card title="Monthly Coin Bonus" icon="coins">
    Receive coins every month to use on advanced features and models.
  </Card>

  <Card title="Enhanced Features" icon="sparkles">
    Unlock Auto-Memory, priority access, and ad-free experience.
  </Card>

  <Card title="Larger Context Window" icon="window-maximize">
    Keep longer conversation histories without losing context.
  </Card>
</CardGroup>

### All Models at a Glance

| Model                 | Coins | Free | Core | Prime | Infinity |
| --------------------- | :---: | :--: | :--: | :---: | :------: |
| **Lite**              |   0   |   ∞  |   ∞  |   ∞   |     ∞    |
| **Spark**             |   0   |   ∞  |   ∞  |   ∞   |     ∞    |
| **Mimo**              |   3   |   —  |   ∞  |   ∞   |     ∞    |
| **Titan**             |   4   |   —  |   —  |   ∞   |     ∞    |
| **Sage**              |   5   |   —  |   —  |   —   |     ∞    |
| **Nova**              |   5   |   —  |   —  |   —   |     ∞    |
| **GLM 4.7**           |   6   |   —  |   —  |   —   |     —    |
| **Gemini 3.0 Flash**  |   8   |   —  |   —  |   —   |     —    |
| **Gemini 3.0 Pro**    |   12  |   —  |   —  |   —   |     —    |
| **Claude 4.5 Sonnet** |   15  |   —  |   —  |   —   |     —    |
| **Claude 4.5 Opus**   |   25  |   —  |   —  |   —   |     —    |
| **Claude 4.6 Opus**   |   25  |   —  |   —  |   —   |     —    |

<Note>
  **∞** = Unlimited (no coins needed) | **—** = Requires coins
</Note>

***

## How Coins Work

Coins are the currency you use to access features and models **beyond your subscription tier**.

### What Can You Use Coins For?

<AccordionGroup>
  <Accordion title="Advanced AI Models" icon="robot">
    Access more powerful models than your plan includes. For example, Prime members can use coins to chat with Sage or Nova, or try our premium models like Claude and Gemini.
  </Accordion>

  <Accordion title="Advanced Memory" icon="brain">
    Enable enhanced memory features that go beyond the standard Auto-Memory included in higher tiers.
  </Accordion>

  <Accordion title="Image Generation" icon="image">
    Create AI-generated images for your conversations or characters.
  </Accordion>

  <Accordion title="Premium Features" icon="star">
    Unlock special features and capabilities as they become available.
  </Accordion>
</AccordionGroup>

<Tip>
  Use your Subscription Coins to try premium models like Claude, Gemini, and GLM! They offer exceptional creative writing, reasoning, and conversation quality.
</Tip>

### How to Earn Coins

You can earn or receive coins in multiple ways:

<CardGroup cols={2}>
  <Card title="Daily Bonus" icon="calendar-day">
    Log in daily to claim your free daily coin bonus.
  </Card>

  <Card title="Invite Friends" icon="user-plus">
    Earn coins when you invite friends to join Mefriend.
  </Card>

  <Card title="Subscription Bonus" icon="crown">
    Receive coins with your subscription plan: **Core** gets 400, **Prime** gets 1,000, and **Infinity** gets 2,000 coins. Monthly plans receive coins each billing cycle; **annual plans receive all 12 months of coins upfront**.
  </Card>

  <Card title="Purchase Coins" icon="shopping-cart">
    Buy additional coins directly when you need them for premium features.
  </Card>
</CardGroup>

***

## Putting It All Together

Here's a real-world example of how subscriptions and coins work together:

<Card title="Example: Prime Subscriber" icon="user">
  **Sarah subscribes to Prime (\$14.99/month)**

  ✅ **Unlimited Chats:** She can chat endlessly with Lite, Spark, and Titan models with **zero coin cost**.

  💰 **1,000 Monthly Coins:** She receives 1,000 coins each month to use however she wants.

  🚀 **How she uses coins:**

  * Tries Claude 4.5 Sonnet for immersive storytelling (15 coins)
  * Uses Gemini 3.0 Flash for quick, creative exchanges (8 coins)
  * Occasionally tries Sage model for complex questions (costs coins)
  * Generates images for her AI character stories (costs coins)

  📊 **The Value:** Without a subscription, chatting with Titan 1,000 times would cost $60 in coins. She gets this unlimited, plus $15 worth of bonus coins—all for just \$14.99!
</Card>

***

## Coin Management

### Two Types of Coins

<CardGroup cols={2}>
  <Card title="General Coins" icon="piggy-bank">
    Coins you purchase or earn through daily bonuses and referrals. **Never expire** and remain in your wallet permanently.
  </Card>

  <Card title="Subscription Coins" icon="calendar">
    Coins included with your subscription. **Expire at the end of each billing cycle** (30 days for monthly, 1 year for annual). Annual plans receive all coins upfront.
  </Card>
</CardGroup>

### Smart Coin Usage

<Info>
  Our system is designed to maximize your value! When you use coins, the system **automatically uses Subscription Coins first** (which expire) before touching your General Coins (which don't expire). This ensures you never waste any coins.
</Info>

***

## Frequently Asked Questions

<AccordionGroup>
  <Accordion title="If I have unlimited chats, why do I need coins?">
    Unlimited chats apply only to the models **included in your tier**. Coins let you access more advanced models and special features beyond your plan. For example, a Prime member has unlimited Titan chats but can use coins to try Sage, Nova, or premium models like Claude 4.5 Sonnet, Gemini 3.0 Pro, and GLM 4.7.
  </Accordion>

  <Accordion title="What happens if I run out of coins?">
    You can still chat unlimited with all the models included in your subscription tier! You'll only need more coins if you want to use advanced models or premium features beyond your plan.
  </Accordion>

  <Accordion title="Can I use my subscription without using any coins?">
    Absolutely! If you're satisfied with the models included in your tier, you never need to use coins. Many subscribers stick to their unlimited models and save coins for special occasions.
  </Accordion>

  <Accordion title="Do I lose my coins if I cancel my subscription?">
    No! Your **General Coins** (purchased or earned) stay in your wallet forever. Only **Subscription Coins** from your current billing cycle will expire when your subscription ends.
  </Accordion>

  <Accordion title="Can I gift coins to other users?">
    This feature is not currently available, but we're exploring it for future updates!
  </Accordion>

  <Accordion title="How do I check my coin balance?">
    Your coin balance is always visible in your account settings and at the top of the chat interface. You can see both your General Coins and Subscription Coins separately.
  </Accordion>
</AccordionGroup>