**o1** series models: **max_tokens is deprecated** in favor of **max_completion_tokens** See also: [community.openai.com](https://community.openai.com/t/why-was-max-tokens-changed-to-max-completion-tokens/938077/4) [Documentation - Controlling costs](https://platform.openai.com/docs/guides/reasoning/controlling-costs#controlling-costs)
o1 series models: max_tokens is deprecated in favor of max_completion_tokens
See also:
community.openai.com
Documentation - Controlling costs