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OpenAI

GPT-4o Long Output

Alpha program

OpenAI is offering an experimental version of GPT‑4o with a maximum of 64K output tokens per request. We hope this experiment helps you explore new use cases that are unlocked by longer completions. 

Alpha participants can access GPT‑4o long output by using the gpt-4o-64k-output-alpha model name.

Pricing

Long completions are more costly from an inference perspective, so the per-token pricing of this model is increased to match the costs.

Input usage
Output usage
$6.00 / 1M tokens
$18.00 / 1M tokens