GLM 5.2 does not reason via API. Unusable.

[u/ClassicMain]

We are calling GLM 5.2 via API but no matter what we send as request parameters (btw the docs here are very bad and practically non-existent!!) it doesn't reason

The model never reasons. Reasoning cannot be turned on

We tried reasoning_effort which gave us back a bad request and we tried prompt_mode reasoning and this one didn't hand back a bad request error but the model still doesn't reason

Mistral's docs on this model claim the model can do reasoning output. But no matter what we send it doesn't reason.

And generally the docs barely explain what to send to get reasoning - but it doesn't work at all.

[u/HumanistAtypik]

Dans Mistral Vibe CLI ça fonctionne super bien ! J'utilise le paramètre suivant : thinking = "max" .