STEP1: Setup LMStudio and download OpenAI GPT-OSS

  1. Download LMStudio from https://lmstudio.ai/

  2. Click on Discover in LMStudio, it should be the “🔍” icon on the left

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  3. Search for gpt-oss-20b and click Download

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  4. After download finishes, load the model.

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    NOTE: Enable the flag to choose model parameters on load

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    Set context length to 32768, depending on your hardware and load the model

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STEP2: Configure BrowserOS to use LMStudio

  1. Add Provider from chrome://settings/browseros-ai

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  2. Choose Provider Type as “OpenAI Compatible”

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  3. Set Base URL to [http://127.0.0.1:1234](<http://127.0.0.1:1234/>)/v1 and model ID to openai/gpt-oss-20b and set context length to 32768 and save!

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  4. Change the default provider to lmstudio and you are good to go!

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  5. You can gpt-oss from Agent!

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    If everything is setup you should see messages on the LMStudio, like below.

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