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

# OpenAI Plus/Pro Subscription

> Use your existing OpenAI subscription in EnConvo

## Overview

If you already have an OpenAI subscription (ChatGPT Plus, Pro), you can use your existing account directly in EnConvo without needing a separate API key.

<Note>
  This is different from using the OpenAI API. Here you use your existing ChatGPT Plus/Pro subscription credentials.
</Note>

## Supported Plans

| Plan         | Supported |
| ------------ | --------- |
| ChatGPT Plus | ✅         |
| ChatGPT Pro  | ✅         |

## Setup

<Steps>
  <Step title="Open Settings">
    Go to **Settings** → **AI Model**
  </Step>

  <Step title="Select OpenAI Subscription">
    Choose **OAuth2** from the Credential Type dropdown
  </Step>

  <Step title="Login">
    Click **Connect** and sign in with your OpenAI account
  </Step>

  <Step title="Authorize">
    Authorize EnConvo to access your ChatGPT subscription
  </Step>
</Steps>

## Available Models

With your subscription, you can access:

| Model              | ChatGPT Plus | ChatGPT Pro |
| ------------------ | ------------ | ----------- |
| GPT-5              | ✅            | ✅           |
| GPT-5.1            | ✅            | ✅           |
| GPT-5-codex        | ✅            | ✅           |
| GPT-5.1-codex      | ✅            | ✅           |
| GPT-5.1-codex-max  | ✅            | ✅           |
| GPT-5.1-codex-mini | ✅            | ✅           |

## Subscription Features

Depending on your OpenAI account and plan, EnConvo can also use OpenAI OAuth for
non-chat capabilities:

| Feature         | Use it for                                               |
| --------------- | -------------------------------------------------------- |
| **Transcribe**  | Speech-to-text for dictation and transcription workflows |
| **GPT Image 2** | Image generation through OpenAI image commands           |

<Note>
  Availability follows your OpenAI subscription and account access. If a feature
  does not appear, reconnect the OAuth credential and confirm the feature is
  available for your account.
</Note>

## Validate and Use

<Steps>
  <Step title="Check connection status">
    After OAuth login, confirm the credential shows as connected in EnConvo.
  </Step>

  <Step title="Select a subscription model">
    Pick a model from the OpenAI subscription provider, not the OpenAI API provider.
  </Step>

  <Step title="Re-authenticate when needed">
    If requests suddenly fail or the model list disappears, reconnect the OAuth credential from settings.
  </Step>
</Steps>

## Benefits

<CardGroup cols={2}>
  <Card title="No Extra Cost" icon="piggy-bank">
    Use your existing subscription - no additional API fees
  </Card>

  <Card title="Same Limits" icon="gauge">
    Enjoy the same usage limits as ChatGPT web/app
  </Card>

  <Card title="All Features" icon="sparkles">
    Access all EnConvo features with your subscription
  </Card>

  <Card title="Easy Setup" icon="bolt">
    Just login - no API key management needed
  </Card>
</CardGroup>

## Limitations

* Usage is subject to your subscription's rate limits
* Some advanced API-only features may not be available
* Session may need periodic re-authentication

## vs OpenAI API

| Feature     | Subscription      | API              |
| ----------- | ----------------- | ---------------- |
| Pricing     | Fixed monthly     | Pay per token    |
| Setup       | Login only        | API key required |
| Rate Limits | Subscription tier | Account tier     |

## Related

<CardGroup cols={2}>
  <Card title="Anthropic Pro/Max Subscription" icon="key" href="/providers/anthropic_subscription">
    Use Anthropic with API key instead
  </Card>

  <Card title="EnConvo Cloud" icon="cloud" href="/providers/enconvo">
    Use EnConvo's built-in service
  </Card>
</CardGroup>