# InternLM Previews 397B Vision-Language Model

> The Intern-S2 preview arrives as a very large multimodal system under a permissive Apache-2.0 license.

Published by The Open Weights on Jul 16, 2026. Canonical: https://theopenweights.com/news/intern-s2-397b-2934

## Key facts

- Company: Internlm
- Model: Intern-S2-Preview-397B
- Version: S2 Preview
- Category: Vision-Language
- Modalities: Vision-Language
- License: Apache 2.0 (Open weights, commercial use allowed)
- Parameters: 397B (mixture of experts)
- Context window: 262K tokens
- Architecture: InternS2PreviewForConditionalGeneration
- Precision: BF16
- Weights size: 810.3 GB
- Significance: notable
- Published: 2026-07-16
- Last verified: 2026-07-23
- Hugging Face: https://huggingface.co/internlm/Intern-S2-Preview-397B
- Canonical URL: https://theopenweights.com/news/intern-s2-397b-2934

InternLM has published an early look at its next-generation multimodal system, [Intern-S2-Preview-397B](https://huggingface.co/internlm/Intern-S2-Preview-397B), on Hugging Face. As the name suggests, this is a preview release rather than a finished model, offering a first glimpse at where the InternLM team is heading with its S2 line.

The headline figure is scale. At 397 billion parameters, Intern-S2 sits firmly in the upper tier of openly available models, and it is billed as a vision-language model capable of processing both images and text. Notably, the record lists it as a dense architecture rather than a mixture-of-experts design, which is unusual at this size and implies substantial hardware requirements to run.

## Why it matters

Open releases at this parameter count remain rare, and the choice of an Apache-2.0 license is significant. That permissive terms allow commercial use, redistribution, and fine-tuning without the usage restrictions attached to many other large models.

- **Modality:** vision-language (image and text)
- **Scale:** 397B parameters, dense
- **License:** Apache-2.0
- **Status:** preview release

As a preview, key details such as context length and benchmark results are not yet spelled out, and prospective users should treat it as a work in progress. Still, the release signals continued momentum from InternLM in pushing large, openly licensed multimodal systems into the community's hands. Full details are on the [model's Hugging Face page](https://huggingface.co/internlm/Intern-S2-Preview-397B).

## Get the model

- [Hugging Face](https://huggingface.co/internlm/Intern-S2-Preview-397B)

## Sources

- [internlm/Intern-S2-Preview-397B](https://huggingface.co/internlm/Intern-S2-Preview-397B) — Hugging Face, Jul 16, 2026

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Source: The Open Weights (https://theopenweights.com/). Aggregated and written by Claude, curated by humans. Cite as: "InternLM Previews 397B Vision-Language Model", The Open Weights, Jul 16, 2026, https://theopenweights.com/news/intern-s2-397b-2934