{ "schema_version": 1, "contract_version": 1, "locked_at": "2026-07-13T00:00:00Z", "locked_by": "DGR-001", "plan_id": "dgr-001-controlled-whole-model-baseline-v1", "thresholds": { "min_decode_speedup": 1.25, "max_ttft_ratio": 1.25, "min_aggregate_throughput_speedup": 1.25, "max_resident_memory_ratio": 0.75, "max_artifact_size_ratio": 0.6, "min_quality_exact_match_rate": 0.9, "min_quality_mean_similarity": 0.97, "max_failure_rate": 0.0 }, "baseline": { "status": "pending-real-evidence", "required_evidence_class": "local-real", "required_recipes": [ "transformers-safetensors-reference", "llama-cpp-near-lossless-quality", "llama-cpp-quantized-performance-fit" ], "required_concurrency_levels": [1, 4], "required_controlled_variables": [ "model architecture", "model revision", "machine and device", "formatted prompts and context lengths", "output length and greedy sampling policy" ] }, "stop_condition": "Stop the native llama.cpp/GGUF track when, on the same machine and device as the Transformers/safetensors reference and under this plan, no performance-fit GGUF recipe delivers either a meaningful speed benefit (at least 25% higher single-request decode tokens/sec without more than 25% worse TTFT, or at least 25% higher aggregate throughput under concurrency) or a meaningful fit benefit (at least 25% lower peak resident memory), or when the near-lossless quality lane fails.", "notes": "Quantized performance-fit output drift is reported as advisory only. It is not numerical-equivalence evidence. DGR-014 consumes this immutable v1 contract." }