Before it
Vision-language models came from large labs with large budgets.
The problem
There was no open recipe for giving an open language model eyes.
What it introduced
A simple projection layer between CLIP and an open LLM, trained on visual instruction data generated by GPT-4.
Why it matters
It made open multimodal models buildable in a day, and set the template most open VLMs still use.
What modern models inherit
The projector-between-encoder-and-LLM design.
What came next
A wave of open vision-language models, and the multimodal expectations that followed.