SlickGPT

SlickGPT is a web chat client for large language models made by ShipBit, a German software company. Users can run it with their own OpenAI API key without registering, so usage is billed directly by the model provider on a pay-per-use basis. Alternatively, the Pro plan removes the need for an API key, and ShipBit handles model access for a fixed monthly price. The model list shows OpenAI models including gpt-4o, gpt-4o-mini, gpt-4-turbo and gpt-3.5, and the app supports vision input for OpenAI models; Groq and Mistral models are listed as coming soon. The code is published in a public GitHub repository.

SlickGPT suits people who want a simple ChatGPT-style interface but prefer to pay for API usage directly, or who want a low fixed price without managing keys. The model list on the page appears dated, so the available models should be checked before subscribing. Nothing was tested for this listing.

The homepage lists a Free plan at €0.00 that requires your own API keys and a Pro plan at €5.99 per month without a key, with a yearly option. ShipBit's terms say subscriptions renew automatically unless canceled and give European consumers a right of withdrawal.