With the results of chat out of the box I kind of agree with you that mistral feels behind.
However, there are some features that I really like and make the experience even better than chatgpt.
- Agents are pretty cool and with some setup produce very good results
- managing libraries for documents/context is better than in ChatGPT. Also adding specific libraries to agents is nice.
- Scheduling tasks has just been added and I want to try that out.
(I have never tried the paid version of any LLM chat so I can only compare free tiers)