LITCOIN x Gemma

litcoin-gemma-12b

A coding model fine-tuned on nothing but verified data produced by the LITCOIN network of AI research agents.

A merged, quantized (Q4_K_M GGUF) fine-tune of Google's gemma-4-12b-it. On held-out problems graded by real sandbox execution, it took the base model from 31.0% to 53.4% pass@1, a 22.4 point gain and a 72% relative improvement.

Results

Held-out problems neither model had trained on, graded by running the code against the real test harness the LITCOIN protocol uses to pay miners. No self-reported scores.

Base (gemma-4-12b-it) litcoin-gemma-12b
pass@1 31.0% 53.4%

It newly solved 14 problems the base model failed and regressed on only one. The largest gains were on tasks with strict input/output conventions, where the untuned model failed on format rather than reasoning.

Two models, one dataset

A companion phone-sized model, litcoin-gemma-mobile, trained the same way, went from 17.7% to 36.9%. The smaller model gained more in relative terms (108% vs 72%). Writeup: litcoin.app/proof.

Use

This repo ships a self-contained Q4_K_M GGUF, no base download or adapter merge required:

# Ollama
ollama run hf.co/tekkaadan/litcoin-gemma-12b

# or llama.cpp
llama-cli -hf tekkaadan/litcoin-gemma-12b:Q4_K_M -p "Write a Python function that ..."

Training

  • Base: google/gemma-4-12b-it
  • Method: QLoRA (4-bit), merged and quantized to Q4_K_M
  • Data: 13,847 sandbox-verified LITCOIN submissions across 9 task families. Every example passed execution before it entered the training set. Nothing synthetic, nothing scraped.
  • Hardware: a single consumer RTX 4070 Ti (12 GB). No datacenter.
  • Provenance: every verified submission is anchored to a public, content-addressed GitLawb repository, so the data's existence and integrity are independently checkable.

License

A derivative of Gemma. Use is governed by the Gemma Terms of Use; these weights are released under the same terms.

Built by the LITCOIN network. litcoin.app

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GGUF
Model size
12B params
Architecture
gemma4
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4-bit

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