Use OpenAI models with your own API key

Bring your OpenAI key and ShopAssist is free up to the Free plan's conversation limit. OpenAI bills you directly for tokens.

Connect your key

Create a key
In the OpenAI platform, open API keys and create a secret key for a project. For EU processing, create the project in the Europe region.
Paste it in ShopAssist
In the dashboard open AI, choose Your own key, select OpenAI and paste the key. Add the organization and project IDs if your key needs them.
Choose the EU endpoint
Select the EU endpoint if your project is in the Europe region.
Test and activate
ShopAssist runs a live test of the key and the model before the assistant uses it.

Your key is encrypted, never logged and shown only by its last four characters.

Models you can use with your own key
Model	Tier	Context window	Images	Processing
GPT-5.6 Luna `gpt-5.6-luna`	Standard	1,050,000 tokens	Yes	global
GPT-6 Astra `gpt-6-astra`	Premium	1,050,000 tokens	Yes	global
GPT-6 Luna `gpt-6-luna`	Standard	1,050,000 tokens	Yes	global
GPT-6 Sol `gpt-6-sol`	Premium	1,050,000 tokens	Yes	global

Estimate based on list prices on 2026-09-28; your provider bills you directly.

Estimated provider cost per 1,000 conversations
Provider	Model	USD per 1,000 conversations	≈ EUR per 1,000 conversations
Azure OpenAI	GPT-6 Luna	$3.61	€3.10
Mistral	Mistral Small 4	$4.71	€4.05
OpenAI	GPT-5.6 Luna	$7.62	€6.55
Google Gemini	Gemini 3.1 Flash-Lite	$8.85	€7.61
OpenAI	GPT-5 mini	$9.85	€8.47
Google Gemini	Gemini 3.5 Flash-Lite	$12.02	€10.34
Mistral	Mistral Large 3	$14.70	€12.64
OpenAI	GPT-5.4 mini	$26.55	€22.83
Anthropic	Claude Haiku 4.5	$36.10	€31.05
Anthropic	Claude Sonnet 5	$72.20	€62.09

Can OpenAI process my data in the EU?

Yes, if you use a project created in OpenAI's Europe region. Select the EU endpoint when you connect the key.

Which models can I use?

The models in the table on this page, plus newer models of the same families. ShopAssist tests the model before activating it.

Free with your own AI key.