Irena Gao
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README.md
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---
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language: en
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datasets:
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- laion2b
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---
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# OpenFlamingo-3B (CLIP ViT-L/14, MPT-1B Instruct)
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[Blog post]() | [Code](https://github.com/mlfoundations/open_flamingo) | [Demo]()
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OpenFlamingo is an open source implementation of DeepMind's [Flamingo](https://www.deepmind.com/blog/tackling-multiple-tasks-with-a-single-visual-language-model) models.
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This 3B-parameter model uses a [CLIP ViT-L/14](https://huggingface.co/openai/clip-vit-large-patch14) vision encoder and an instruction-tuned [MPT-1B](https://huggingface.co/mosaicml/mpt-1b-redpajama-200b-dolly) language model.
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## Model Details
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We follow the Flamingo modeling paradigm, outfitting the layers of a pretrained, frozen language model such that they cross-attend to visual features when decoding. Following Flamingo, we freeze the vision encoder and language model but train the connecting modules on web-scraped image-text sequences. Specifically, we use a mixture of [LAION-2B](https://arxiv.org/abs/2210.08402) and [Multimodal C4](https://arxiv.org/abs/2304.06939).
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## Uses
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OpenFlamingo models process arbitrarily interleaved sequences of images and text to output text. This allows the models to accept in-context examples and undertake tasks like captioning, visual question answering, and image classification.
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### Bias, Risks, and Limitations
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OpenFlamingo models inherit the risks of their parent models, especially the language model. As an open-source research effort, we highly value open, accessible, reproducible multimodal model research; however, it is crucial to be aware that these models are trained on web data, have not been finetuned for safety, and thus may produce unintended, inappropriate, unreliable, and/or inaccurate outputs. Please use caution before deploying OpenFlamingo models in real applications. We also hope that OpenFlamingo enables further safety and reliability research to address these issues.
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In an effort to mitigate current potential biases and harms, we have deployed a text content filter on model outputs in the OpenFlamingo demo. We continue to red-team the model to understand and improve its safety.
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## Evaluation
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<table>
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<tr>
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<th></th>
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<th>0-shot</th>
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<th>4-shot</th>
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<th>8-shot</th>
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<th>16-shot</th>
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<th>32-shot</th>
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</tr>
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<tr>
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<th>COCO (CIDEr)</th>
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<td>74.4 (0.6)</td>
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<td>82.7 (0.7)</td>
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<td>87.8 (0.5)</td>
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<td>91.9 (0.3)</td>
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<td>94.8 (0.3)</td>
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</tr>
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<tr>
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<th>VQAv2 (Accuracy)</th>
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<td>43.6 (0.2)</td>
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<td>45.7 (0.5)</td>
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<td>46.1 (0.5)</td>
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<td>45.3 (0.4)</td>
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<td>44.3 (0.4)</td>
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</tr>
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<tr>
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<th>Flickr-30K (CIDEr)</th>
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<td>51.2 (0.2)</td>
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<td>59.1 (0.3)</td>
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<td>60.7 (0.6)</td>
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<td>63.0 (0.4)</td>
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<td>64.5 (1.3)</td>
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</tr>
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<tr>
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<th>OK-VQA (Accuracy)</th>
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<td>26.2 (0.3)</td>
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<td>31.9 (0.2)</td>
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<td>31.4 (0.4)</td>
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<td>31.6 (0.3)</td>
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<td>31.0 (0.1)</td>
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</tr>
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<tr>
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<th>TextVQA (Accuracy)</th>
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<td>23.1 (0.2)</td>
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<td>28.1 (0.4)</td>
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<td>29.1 (0.1)</td>
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<td>29.1 (0.1)</td>
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<td>28.5 (0.1)</td>
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</tr>
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<tr>
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<th>Vizwiz (Accuracy)</th>
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<td>18.0 (0.6)</td>
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<td>22.0 (0.8)</td>
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<td>28.8 (1.3)</td>
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<td>35.5 (0.8)</td>
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<td>41.3 (0.5)</td>
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</tr>
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<tr>
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<th>ImageNet (Top-1 Accuracy)</th>
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<td>-</td>
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<td>-</td>
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<td>-</td>
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<td>-</td>
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<td>-</td>
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</tr>
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<tr>
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<th>Hateful Memes (ROC AUC)</th>
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<td>-</td>
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<td>-</td>
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<td>-</td>
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<td>-</td>
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<td>-</td>
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</tr>
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</table>
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checkpoint.pt
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version https://git-lfs.github.com/spec/v1
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oid sha256:9dc045d02933a46f012b52b96aa10dbaedec84594dd202ac4c3c6f2ece51dbe3
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size 4188086933
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