Hi, when I try to use the CHAT feature with GPT\u002D5 model, I get the message\u003B\u000a\u000a[event: error data: {\u0022error\u0022:\u0022400 Unsupported parameter: \u0027maxtokens\u0027 is not supported with this model. Use \u0027maxcompletion_tokens\u0027 instead.\u0022}\u000a]\u000a\u000aCould you look into this, please.\u000aCheers

Hi,\u000a\u000athanks we will look into it!

Error with GPT-5 Model | Writeseed - AI Content Writer

prolance

Nov 11, 2025

Q: Error with GPT-5 Model

Hi, when I try to use the CHAT feature with GPT-5 model, I get the message;

[event: error data: {"error":"400 Unsupported parameter: 'maxtokens' is not supported with this model. Use 'maxcompletion_tokens' instead."}
]

Could you look into this, please.
Cheers

Founder Team

Hendrik_WPAutoBlog

Nov 11, 2025

A: Hi,

thanks we will look into it!

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