# 1.26 · Projects, Gemini 4 Argon, GPT-6.1 Sol, Kolibri 1, and Claude Haiku 5.5

> Shared projects and the new models Gemini 4 Argon, GPT-6.1 Sol, Kolibri 1, and Claude Haiku 5.5. · Published: October 22, 2026

With release 1.26, shared initiatives get a dedicated place in MAIA. Decisions and background knowledge remain available across individual conversations and handovers. The team works from the same knowledge base, while personal chats stay private.

## Projects

Projects bring files and project knowledge together in one shared place.

What's new:

* New project chats start with the project's files preselected as sources.
* The shared project context records decisions, requirements, and background knowledge that MAIA considers in every project chat.
* Multiple projects can be selected together as sources for research.
* Projects can be handed over and archived. Archiving preserves files and project knowledge.

## New models

The model selection includes the following models:

* Gemini 4 Argon
* GPT-6.1 Sol
* Kolibri 1
* Claude Haiku 5.5

Gemini 4 Argon, GPT-6.1 Sol, and Claude Haiku 5.5 run in the EU as usual, in line with data protection requirements. Kolibri 1 is an open-weight model hosted in Germany in line with data protection requirements.

Aleph Alpha developed Kolibri in Germany and trained it on infrastructure in Germany and Finland. It has a particular focus on German-language texts and the domain context of businesses and public administration. Publicly available model weights and development under European control support the goal of digital sovereignty. [Details from Aleph Alpha](https://aleph-alpha.com/en/blog/kolibri-has-landed-a-sovereign-open-weight-model/).

Note: Apertus 70B, Claude Sonnet 5, and Claude Opus 5 are retired. Workflow steps using the previous Claude models switch to their respective 5.5 successors.

## Other improvements

The release also includes minor bug fixes.

Projects and all new models are available to all users in all licensed workspaces.