LFM2.5-350M cogs query student (GGUF)

LoRA fine-tune of LiquidAI/LFM2.5-350M as the Cogitarium query student: translates a natural-language data request + schema into ONE LadybugDB Cypher query (openCypher-like, constrained single-MATCH grammar). Trained on 3,065 execution-verified pairs (teacher glm-5.2; every pair executed against a seeded store before admission).

Frozen 55-example execution eval (see the cogs-finetune-query runbook):

model exec match
base LFM2.5-350M few-shot 7.3% 0%
Qwen3-1.7B few-shot 94.5% 12.7%
this model (bf16) 98.2% 23.6%
this model (Q8_0) 96.4% 23.6%
this model (Q4_K_M) 63.6% 10.9%

Pins (measured): repetition penalty 1.0; Q8_0 quantization REQUIRED (Q4_K_M exhibits token corruption). Serve with the exact system prompts in Cogitarium src/data/prompts.ts (sha-pinned train/serve contract).

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