Scoracle Articulator v4 Q6

Scoracle Articulator is a compact, on-device sports narrator. It converts structured Scoracle team-data slices into short conversational answers while keeping product names and transport details out of the response.

This is the shipping v4 iter-900 build: a LoRA fine-tune of ibm-granite/granite-4.0-h-1b, fused and quantized to 6-bit MLX weights. The directory is intended for Apple Silicon inference with MLX and for Scoracle's iOS client.

Intended use

The model expects Scoracle's chat template and one of eight compact JSON DATA slices: profile, rating, momentum, results, news, follow-up, mood, or transfer wire. It is not a general-purpose sports knowledge model and should not be asked to supply facts absent from the provided DATA.

Scoracle's runtime wraps generation in a grounding guard. A response containing an unsupported decimal is rejected and retried. Keep that guard enabled in production.

Training and evaluation

  • Fine-tuning corpus: 1,456 conversational instruction-response pairs over 182 teams, with entity-disjoint validation and holdout sets.
  • Held-out evaluation: 176 prompts over 22 teams and eight prompt shapes.
  • Fused 6-bit build: 97.2% grounded numbers; 100% product-name, plumbing, and foreign-team invariants.
  • Every observed grounding miss in the quantized evaluation was the programmatically detectable decimal-mash class handled by the runtime guard.

Artifact

  • Format: MLX Safetensors
  • Quantization: 6-bit affine, group size 64
  • Approximate download: 1.1GB
  • Version: v4-iter900-q6-2026-08-29
  • Base model license: Apache-2.0

The repository includes the tokenizer, chat template, generation configuration, model configuration, weights, and a versioned manifest.json used by the iOS downloader.

Limitations

The model is English-first, narrow-domain, and optimized for short narration of trusted structured inputs. It may generate inaccurate text outside that contract. Scores and claims above describe Scoracle's held-out dataset and runtime settings (temperature=0, maximum 220 generated tokens); they are not general benchmark results.

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