Yes, there is. It is only available to Meshtastic device users, not through Telegram and requires some tweaking. You need to have OPENAI_API_KEY environment variable set to API Key from OpenAI. Model is gpt-3.5-turbo, not gpt-4 (which is not general availability anyway). Play around, let me know
Invite your bot to your Telegram channel first, then enable debug mode in mesh.ini.
By posting something in that Telegram channel, you’ll get debug message in your console with big negative number, like -12334525235, that’ll be your room id.
Also, make sure that bot that you’ve invited has admin permissions.