metadata
tags:
- mic
- test-artifact
base_model: FacebookAI/roberta-base
roberta-base-mic
Slim model weights, executable usage and framework expectations in one repository.
- Contract manifest
- Transformers usage
- Transformers expectations
- Fixture provenance
- How the fixture was shrunk
Contract
RoBERTa fill-mask
Runnable usage and the framework expectations directory are linked above.
Slim model
Slim fixture: roberta-base-mic
A 3.4M-parameter fixture for the RoBERTa MIC, covering FacebookAI/roberta-base. It is a test artifact, not a usable model, tagged test-artifact to keep it out of candidate-model search.
- Fixture key
05ec051e3d97. It covers every checkpoint whose processor files are byte-identical and whose config matches after shrinking. - Same architecture, smaller config:
RobertaForMaskedLM, shrunk by the generic rule insweep.py(num_hidden_layers 2). - Processor files copied byte for byte from
FacebookAI/roberta-base:dict.txt,merges.txt,tokenizer.json,tokenizer_config.json,vocab.json. - Random weights (seed 17). They passed the input-sensitivity gate: every perturbation of the contract's inputs moved the logits by at least 0.001 (weakest:
attention_mask:all_ones, 0.0024), so no training was needed. - Same tensor names as the real checkpoint. The real checkpoint has every parameter, and so does the fixture.
- Saved in float32, the dtype
FacebookAI/roberta-baseloads in by default. - Finite in float32, bfloat16, and float16 (forward, loss, gradients).
Built by build_fixtures.py; build.json records the pinned sources, gate results, and file hashes. This repository includes the slim weights, usage and framework expectations; rebuild the other files with python example/build_fixtures.py --fixture roberta-base-mic.