Connect your ChatGPT Pro or Plus subscription to BrowserOS and access GPT-5 Codex, GPT-5.4, and the full lineup of OpenAI’s most advanced models — with up to 400K context. No API keys needed.
Setup
1. Open BrowserOS and go to Settings (chrome://browseros/settings). You’ll see the AI Providers section.
2. Click USE on the ChatGPT Plus/Pro card. You’ll be prompted to sign in with your OpenAI account.
3. Sign in with the OpenAI account that has your ChatGPT Pro or Plus subscription active, and accept the authorization.
4. Once authorized, ChatGPT will appear as a provider in your settings. Select a model and start using it.
Available Models
| Model | Context Window |
|---|
gpt-5.4 | 400K |
gpt-5.3-codex | 400K |
gpt-5.2-codex | 400K |
gpt-5.2 | 200K |
gpt-5.1-codex | 400K |
gpt-5.1-codex-max | 400K |
gpt-5.1-codex-mini | 400K |
gpt-5.1 | 200K |
ChatGPT Pro subscribers have access to the full model lineup. ChatGPT Plus subscribers can access a subset of models depending on their plan. The available models will be shown automatically after you connect.
The Codex models (e.g., gpt-5.3-codex) are optimized for code and reasoning tasks — ideal for complex browser automation workflows that involve form filling, data extraction, and multi-step navigation.
Reasoning Settings
ChatGPT Pro includes additional settings for models that support reasoning:
- Reasoning Effort — Control how much the model “thinks” before responding. Options: none, low, medium, high.
- Reasoning Summary — Choose how reasoning is displayed. Options: auto, concise, detailed.
These settings are available in the provider configuration after connecting.
Disconnecting
To disconnect your OpenAI account, go to Settings, find the ChatGPT Plus/Pro provider, and click Disconnect. Your OAuth tokens will be immediately deleted from your machine. 