Error message when using friend's OpenAI API key, need help understanding why

Hey all, Just added a friend's OpenAI API key and I have an error message when using it. Do you know why is that?

Augustin R.
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https://app.clay.com/workspaces/48925/tables/t_kQ3dqT6wM8sE/views/gv_XEfPLGKPzzzE
Clay Team
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Hi Agustin, thanks for getting in touch! Are you sure the API key is valid? can you double check with your friend? its working for him?
Augustin R.
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Hey Juan P. if I understood well, I need a specific Chatgpt API subscription. A Chatgpt plus will not work here?
Clay Team
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No, you need the API subscription
:thumbsup_all:1
Augustin R.
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Is it cheaper to use my API key credits?
Clay Team
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I think will be cheaper, yes. You can compare prices here: https://gptforwork.com/tools/openai-chatgpt-api-pricing-calculator
:thumbsup_all:1
Augustin R.
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Thanks, appreciate it!