REDDIT · REDDIT// 7d agoTUTORIAL

LM Studio workaround enables Gemma reasoning

A Reddit post in r/LocalLLaMA shares a practical workaround for getting Gemma to enter reasoning mode inside LM Studio by adding `/think` to the system prompt and adjusting the chat template’s reasoning parser. The author says the model’s thought blocks use an unusual tag format, so the template needs custom start and end strings to detect them properly. The setup was reported as working on the 26B and 31B Gemma variants, making this a useful tweak for local model power users rather than a general turnkey feature.

// ANALYSIS

This is a useful but brittle power-user hack, not a polished product feature.

–The main value is that it exposes reasoning behavior in LM Studio without waiting for upstream UX changes.
–The parser detail matters: if the template does not match the model’s tag format exactly, the reasoning section can be missed or mangled.
–It looks most relevant to people already running Gemma 26B/31B locally and comfortable editing Jinja templates.
–The post is more about prompt/template engineering than a new model capability, so it reads as a tutorial update.

// TAGS

lm-studiogemmagemma-4reasoning-modejinjaprompt-templatelocal-llm

DISCOVERED

7d ago

2026-04-04

PUBLISHED

7d ago

2026-04-04

RELEVANCE

7/ 10

AUTHOR

Adventurous-Paper566