Model description

xGen-MM is a series of the latest foundational Large Multimodal Models (LMMs) developed by Salesforce AI Research. This series advances upon the successful designs of the BLIP series, incorporating fundamental enhancements that ensure a more robust and superior foundation. These models have been trained at scale on high-quality image caption datasets and interleaved image-text data.

In the v1.5 (08/2024) release, we present a series of XGen-MM models including:

🤗 xGen-MM-instruct-interleave (our main instruct model): xgen-mm-phi3-mini-instruct-interleave-r-v1.5
- This model has higher overall scores than xGen-MM-instruct on both single-image and multi-image benchmarks.
🤗 xGen-MM-base: xgen-mm-phi3-mini-base-r-v1.5
🤗 xGen-MM-instruct: xgen-mm-phi3-mini-instruct-singleimg-r-v1.5
🤗 xGen-MM-instruct-dpo: xgen-mm-phi3-mini-instruct-dpo-r-v1.5

For more details, check out our tech report, fine-tuning code, and project page.

Results

Single-image benchmarks

Model (Size)	SEED -IMG	SEED v2	MMB (dev)	MM Star	MME (norm)	CVB -2D	CVB -3D	RealW QA	MMMU (val)	Math Vista	Sci QA	POPE	Text VQA	Avg. all	Avg. perc.
Closed-source models
GPT-4V^*	72.0	-	80.8	49.7	63.3	64.3	73.8	56.5	53.8	48.2	82.1	75.4	-	-	-
MM1-3B-Chat (3B)	68.8	-	67.8	-	62.9	-	-	-	33.9	-	-	87.4	-	-	-
Open-source models
HPT-1.5-edge (4B)	72.3	-	74.6	45.8	-	-	-	-	42.6	45.1	85.4	91.0	-	-	-
VILA-1.5-3B (3B)	67.9	-	63.4	-	-	-	-	-	33.3	-	69.0	85.9	-	-	-
VILA-1.5-3B^** (3B)	67.9	51.9	62.4	40.3	58.5	50.1	60.3	53.3	34.1	30.6	68.9	86.9	58.1	55.6	59.1
phi-3-vision (4B)	-	-	80.5	-	-	-	-	-	-	44.5	90.8	85.8	70.9	-	-
phi-3-vision^** (4B)	71.0	52.7	74.2	47.9	55.3	60.7	68.2	59.1	46.1	45.1	90.2	83.5	73.3	63.6	63.6
xGen-MM-inst. (4B)	71.8	53.9	76	46.7	63.8	66.2	75.4	61.6	42.8	39.2	85.6	87.0	72.0	64.8	66.9
xGen-MM-inst.-interleave (4B)	72.2	55.5	76.8	48.1	64.4	69.3	72.3	60.5	41.1	39.6	88.3	87.0	71.0	65.1	67.3

* GPT-4V(gpt-4-1106-preview) results are taken from this third-party leaderborad.
** Model results are tested with our evaluation code for a fair comparison.

Multi-image benchmarks

Model	BLINK	QBench-2	Mantis-eval
GPT-4V ^†	51.1	73.4	62.7
VILA-1.5-3B^†† (3B)	39.8	51.7	41.9
xGen-MM-inst. (4B)	46.6	52.4	42.4
xGen-MM-inst.-interleave (4B)	49.7	75.1	56.7
† GPT-4V results are the numbers reported in each benchmark's original paper.
†† Model results are tested with our evaluation code for a fair comparison.

Examples

How to use

Please check out our inference notebook for example code to use our model. We also provide an example script for batch inference.

Reproducibility:

Our evaluation is implemented based on open-compass/VLMEvalKit. We will create a PR to that repo to support XGen-MM evaluation.

Bias, Risks, Limitations, and Ethical Considerations

The main data sources are from the internet, including webpages, image stock sites, and curated datasets released by the research community. We have excluded certain data, such as LAION, due to known CSAM concerns. The model may be subject to bias from the original data source, as well as bias from LLMs and commercial APIs. We strongly recommend users assess safety and fairness before applying to downstream applications.

License

Our code and weights are released under the Apache 2.0 license.

Code acknowledgment

Our training code is based on OpenFlamingo: An open-source framework for training large multimodal models., and part of our data preprocessing code is adapted from LLaVA. The evaluation code for the instruct models is based on VLMEvalKit: Open-source evaluation toolkit of large vision-language models (LVLMs).

We thank the authors for their open-source implementations.

Citation

@misc{blip3-xgenmm,
  author          = {Le Xue, Manli Shu, Anas Awadalla, Jun Wang, An Yan, Senthil Purushwalkam, Honglu Zhou, Viraj Prabhu, Yutong Dai, Michael S Ryoo, Shrikant Kendre, Jieyu Zhang, Can Qin, Shu Zhang, Chia-Chih Chen, Ning Yu, Juntao Tan, Tulika Manoj Awalgaonkar, Shelby Heinecke, Huan Wang, Yejin Choi, Ludwig Schmidt, Zeyuan Chen, Silvio Savarese, Juan Carlos Niebles, Caiming Xiong, Ran Xu},
  title           = {xGen-MM (BLIP-3): A Family of Open Large Multimodal Models},
  year            = {2024},
  eprint          = {2408.08872},
  archivePrefix   = {arXiv},
  primaryClass    = {cs.CV},
  url             = {https://arxiv.org/abs/2408.08872}, 
}

Troubleshoot

If you missed any packages, please consider the following

pip install torch==2.2.1 torchvision==0.17.1 torchaudio==2.2.1 --index-url https://download.pytorch.org/whl/cu121
pip install open_clip_torch==2.24.0
pip install einops
pip install einops-exts
pip install transformers==4.41.1

Salesforce
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xgen-mm-phi3-mini-instruct-interleave-r-v1.5