# The "none" finding (2026-08-18, reproduced with a single isolated request)

Sending reasoning_effort "none" (listed in Unsloth's docs and shown in the Studio dropdown)
makes the MODEL'S OWN chat template raise, so every request returns HTTP 500:

    Jinja Exception: Unexpected reasoning effort none.
    Supported types are xhigh (default), medium, and low.

Conclusion: the template accepts exactly three effort levels. "None" in Unsloth's UI/docs
must map to `enable_thinking: false` (the separate off-switch we benchmarked as the
instruct baseline), not to a reasoning_effort value. All four scheduled tests failed
identically in the overnight run; full server traceback in scratchpad none-test.log and
overnight.log.