This repository is a compact, custom PyTorch implementation of Coca for Retrieval. The small configuration is intended for code review, smoke tests, and small controlled experiments rather than as a production-ready pretrained release.
Runs On
What it takes to serve coca-retrieval-finetune (16,576 parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.
| Precision | Weights | Memory needed | Cheapest setup | Per hour | Also fits |
|---|---|---|---|---|---|
| 16-bit | 0.0 GB | 0.0 GB | 1x MI300X (192 GB) Vultr |
$1.85 | 1x H100 $1.99 · 1x MI325X $2.00 |
| 8-bit | 0.0 GB | 0.0 GB | 1x MI300X (192 GB) Vultr |
$1.85 | 1x H100 $1.99 · 1x MI325X $2.00 |
| 4-bit | 0.0 GB | 0.0 GB | 1x MI300X (192 GB) Vultr |
$1.85 | 1x H100 $1.99 · 1x MI325X $2.00 |
Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Sep 18, 2026.
Model Card
By Sophia Williams, published under apache-2.0, revision 7d3c856e9b14.
This repository is a compact, custom PyTorch implementation of Coca for Retrieval. The small configuration is intended for code review, smoke tests, and small controlled experiments rather than as a production-ready pretrained release. - The Python file contains the model and runnable example or training entry point. - config.json records the generated architecture settings. - trainingargs.json records the default experiment recipe. - model.safetensors is a valid initialization checkpoint for smoke tests; it is not presented as a trained benchmark checkpoint. - No benchmark score is claimed in this repository. The included configuration uses novograd with a onecycle schedule. These are…
Read Sophia Williams's full model card
Coca for Retrieval
Overview
This repository is a compact, custom PyTorch implementation of Coca for Retrieval. The small configuration is intended for code review, smoke tests, and small controlled experiments rather than as a production-ready pretrained release.
Repository status
- The Python file contains the model and runnable example or training entry point.
config.jsonrecords the generated architecture settings.training_args.jsonrecords the default experiment recipe.model.safetensorsis a valid initialization checkpoint for smoke tests; it is not presented as a trained benchmark checkpoint.- No benchmark score is claimed in this repository.
Architecture
| Item | Value |
|---|---|
| Architecture | Coca |
| Scale | small |
| Attention | sliding window |
| Fusion | bilinear |
| Activation | relu |
| Normalization | scalenorm |
Default experiment recipe
The included configuration uses novograd with a onecycle schedule. These are starting values in the script, not evidence of a completed run. For a meaningful evaluation, train all baselines with the same data exposure, tuning budget, and random seeds.
Quick check
python predict.py --help
Inspect the script's __main__ block for its generated smoke-test example. Because this is a custom implementation, generic automatic loading APIs require an explicit adapter before use.
Evaluation guidance
A useful first evaluation would use Flickr30k, report the task metric across at least three seeds, and include a matched-capacity baseline. Keep training logs and environment versions with any published result.
Limitations
The initialization checkpoint has not been trained or audited for robustness, fairness, or domain transfer. The implementation should be treated as an experimental starting point. Results from a future trained checkpoint must be documented separately from the defaults shipped here.
Files
predict.py— primary artifactREADME.md— this documentationconfig.json— architecture configurationtraining_args.json— default experiment settingsmodel.safetensors— initialization checkpoint
License
Released under apache-2.0. Review the source-data terms separately when this repository is used with external datasets.
Configuration
- Architecture
- CustomResearchModel
- Context length (tokens)
- 512
- Layers
- 8
- Hidden size
- 128
- Feed-forward size
- 512
- Attention heads
- 8
- Model type
- coca
Identity and Version
- Repository
- sarahjhy/coca-retrieval-finetune
- Publisher
- Sophia Williams
- Task
- Not stated by the source
- Modality
- Other
- Library
- Not stated by the source
- Parameters
- 16,576 parameters
- Languages
- Not stated by the source
- Revision
- 7d3c856e9b1404e187af5c849dbd355576ff8420
- First published
- 2026-09-18
- Last updated
- 2026-09-18
Files and Weights
6 files, 73.8 KB in total. The weights are 1 file totalling 66.8 KB in safetensors.
Every file
| File | Type | Size | SHA-256 |
|---|---|---|---|
| model.safetensors | Weights | 66.8 KB | 4ed61401de93 |
| config.json | Configuration | 426 B | — |
| predict.py | Configuration | 2.4 KB | — |
| training_args.json | Configuration | 193 B | — |
| README.md | Documentation | 2.5 KB | — |
| .gitattributes | Repository | 1.5 KB | — |
License and Download
- License
- apache-2.0
- Access
- Open weights, no gate
- Download size
- 66.8 KB
Released by Sophia Williams through its official repository on Hugging Face. Read the license.
Memory Requirements
| Precision | Weights in memory |
|---|---|
| As published | 66.8 KB |
| 16-bit | 0.0 GB |
| 8-bit | 0.0 GB |
| 4-bit | 0.0 GB |
Weights only, from the published parameter count; the key-value cache and runtime add to this.
Questions About coca-retrieval-finetune
How much GPU memory does coca-retrieval-finetune need?
About 0 GB at 16-bit and 0 GB at 4-bit: the weights (16,576 parameters) plus a working margin. A long context needs more.
What is the cheapest GPU to run coca-retrieval-finetune on?
At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.
Can I use coca-retrieval-finetune commercially?
Yes. coca-retrieval-finetune is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.
What is coca-retrieval-finetune's context length?
512 tokens, from the maximum position embeddings in its published configuration.