# Apertus 1.5 adds multimodal input and a 4× longer context

> The 8B and 70B models were released on July 24 2026 with image/audio support, a thinking mode, and a 262k‑token context window.

Oossa · 2026-10-15 · https://oossa.com/en/apertus-1-5-adds-multimodal-input-and-a-4-longer-context

Hugging Face announced that the Apertus 1.5 models are now available. The update expands the 8‑billion and 70‑billion parameter models with image and audio understanding, an optional thinking mode for reasoning, and a context window of 262,144 tokens – four times larger than the original. The new weights were uploaded on July 24 2026 under an Apache 2.0 license and remain fully open.

## The facts

- July 24, 2026 – model weights released on Hugging Face
- Context window increased to 262,144 tokens (4× previous size)

## Why it matters

Developers can now build apps that handle text, images and speech together without proprietary APIs.

## Sources & references

1. [Apertus 1.5 Release Notes](https://huggingface.co/blog/swiss-ai/apertus-v15-release-notes) – Hugging Face, 2026-10-15

Last updated: 2026-10-15