GPT 5 nano API pricing across providers

Price per generation

Run it

curl -X POST https://ellisekiz.ai/api/v1/generations \
  -H "Authorization: Bearer esk_..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai-gpt-5-nano",
    "prompt": "your prompt"
  }'

Omit provider and the cheapest offer wins; add it to pin one. Full reference in the docs.

Questions

Which provider is cheapest for GPT 5 nano?

Atlas Cloud at $0.0000 per generation. ElliSekiz routes to it automatically unless you pin a provider yourself.

How much does GPT 5 nano cost on ElliSekiz?

Exactly what the provider charges — $0.0000 per generation at the cheapest route. Usage is billed 1:1 from a prepaid USD balance with no markup and no subscription; failed generations are free.

Can I choose the provider for GPT 5 nano?

Yes. Send "provider" with the API request, pin one per model in your account settings, or leave it to the router, which picks the cheapest available offer.

Can I use my own Atlas Cloud API key?

Yes. Store your provider keys in your ElliSekiz account and generations run on your own upstream account — currently with zero platform fee.