Troubleshooting Laguna S.21 Quantization: The Forced </think> Tag Issue
Oatilis · reddit · 2026-08-01
A developer encountered issues while locally deploying Poolside's Laguna S.21 model: regardless of using FP8 or NVFP4 quantization, the model emits </think> and stops reasoning immediately. After testing vLLM and llama.cpp, the only workaround found was forcing a think string, which causes the model to over-reason even for simple prompts. Additionally, the model sometimes halts generation mid-way despite sufficient context.
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