I'd use a Free Software option, like what HuggingFace is doing with HuggingChat (which does require a HuggingFace account). It's completely free, no strings attatched.
Discussion
both Hugging Chat and GPT-3.5-turbo use the same language model, GPT-3. free version of Hugging Chat comes with some limitations in terms of the number of responses and usage time. I hate AI anyway
