How Vision Language Models Are Trained from “Scratch”

Towards Data Science / 3/14/2026

💬 OpinionIdeas & Deep AnalysisModels & Research

Key Points

  • The article offers a detailed walkthrough of how text-only language models can be extended to process images by fine-tuning for multimodal capabilities.
  • It discusses the typical data requirements, training objectives, and architectural adjustments used to align textual and visual representations.
  • It addresses practical considerations such as compute costs, data quality, and evaluation metrics when training vision-language models.
  • It explains design choices for fusing visual features with language models and the trade-offs involved in preserving language performance.
  • It explores consequences for applications, research directions, and potential industry impact of vision-language modeling.

A deep dive into exactly how text-only language models are finetuned to *see* images

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