chandra-twin-onnx (bilingual)

The on-device "AI twin" answering questions on tungathurthi.com in English and German: a LoRA fine-tune of LFM2.5-230M that speaks in first person as Chandra Tungathurthi (AI consultant, Essen, Germany).

Trained on a bilingual merge (English corpus + German corpus oversampled to ~40%), each training row carrying its own language's system prompt and retrieval context — the runtime selects the language via the system prompt and knowledge base it serves. The model answers from retrieved context (### External Info: blocks) and emits plain prose only (twin-response/v1); served fully client-side via Transformers.js + WebGPU.

Variants

File	Precision	Size	Scorecards
onnx/model_fp16.onnx	fp16	~454 MB	Recommended (WebGPU) — English 9/13, German 8/12
onnx/model_q4.onnx	int4 block-32	~211 MB	Light option — English 9/13, German 6/12

Exported with LiquidONNX.

Intended use

Powers the chat on Chandra's own website. Answers may be imperfect — the authoritative source is the person: letsconnect@tungathurthi.com.