- Create an API key: OpenAI ↗
- Open settings → OpenAI → API key.
- Choose a model: gpt-4o-mini · gpt-4o
- Save settings. Ask from text (OCR) / Ask from image / diagram.
API use is billed separately from a ChatGPT subscription.
Keep your key private. Check current limits in your provider account.
Provider charges and quotas are separate from LuciQA.
OpenAI · Official source ↗