GOOGLE 🔥: Gemini Business now supports custom MCPs!

> New: custom MCP server connections - Connect private data and internal tools.

It's happening! 👀

How long until we see them on consumer Gemini too?

IFM releases K2 Horizon: 6 models with full training record

IFM released K2 Horizon, six Apache 2.0 language models from 0.9B to 375B parameters, with training code, logs, checkpoints, evaluations, and documented reward-hacking cases, emphasizing reproducibility and auditability.

🗞 #sponsored @testingcatalog

Meta's Muse agent enters closed alpha with invite codes

Meta’s Muse AI agent is nearing launch in closed alpha, with waitlist and invite codes, mobile and web access, app connectors, spending controls, and task automation across email, calendar, bookings, budgets, and planning.

🗞 #meta @testingcatalog

Gemini Immersive View appears in the "Students" section

Google’s Gemini student app adds Immersive View, an image-based topic explorer with clickable nodes and layered detail. Access appears live via direct URL, though Google has not clarified if this is a test or a wider rollout.

h/t @Thomasguka

🗞 #google @testingcatalog

GOOGLE 🔥: Gemini now offers a new Immersive View experience in the Students tab!

> Users can pick from a variety of topics to explore, starting with dinosaurs and continuing with space and rockets.

> Each experience opens an interactive image where users can drill down into pre-selected details. In some cases, it can go quite deep, even explaining molecular structure.

I guess my 5yo will have some testing time today! It is pretty cool to explore.

h/t @Thomasguka

OpenAI prepares managed agents for DevDay 2026

OpenAI’s DevDay may center on managed agents for developers and businesses, echoing Anthropic’s model. Expected reveals include model and security updates, plus agent-based ads that could challenge current digital marketing.

🗞 #openai @testingcatalog

OPENAI 🔥: As tradition dictates, OpenAI plans to announce a new solution for its agent ecosystem at the upcoming DevDay 2026.

This time, we will get Managed Agents 🤖

> Users will be able to create Agents, Environments, and Agent Sessions directly via the OpenAI Platform.

> The Codex Plugin will help users build, configure, and deploy agents, lowering the barrier to entry.

> OpenAI's Managed Agents could be hosted on the OpenAI platform or self-hosted.

Loads of details inside 👀

Google tests proper Projects for the Gemini desktop app

Google is internally testing a Projects feature for Gemini desktop: persistent workspaces with custom instructions, files, and grouped chats. It mirrors long-standing ChatGPT and Claude setups, but no public launch details are confirmed.

🗞 #google @testingcatalog

Google is healing? ❤️‍🩹

A canonical Projects implementation has been spotted in testing on the Gemini Desktop app.

> The current implementation looks very similar to Projects on Gemini Business.

> This experience is being tested alongside NotebookLM integration and unlikely meant to replace it.

First, we've got custom MCPs on Gemini Business, and now this?

DAILY AI BRIEF 🗞 — Sept 8

META 🔥:
• First look at Muse (Hatch) mobile UI: proactive agent for goals, calendar, email, bookings, and spend, now in closed beta with invite codes.

GOOGLE 🔥:
• Immersive View in Gemini Students — image topic maps with clickable nodes. Worth testing!

OPENAI 🔥:
• Writing Style for ChatGPT Work learns your voice from Gmail, Drive, Slack, and SharePoint.
• Usage-reset week: banked Codex resets plus a Sept 7 Plus/Pro/Business flush that is not bankable.
• DevDay prep: managed agents on the platform (environments, skills, plugins). Sept 29.

MISTRAL 🔥:
• €3B Series D at >€21B, Europe’s largest tech equity round, led by Samsung with Scaleup Europe Fund and PSG.

ANTHROPIC 🔥:
• Walked away from the ~$6B Decart deal after diligence; collaboration still possible.

Anything to add here? 👀

OpenAI is planning to make managed agents easily accessible in a way that anyone who uses Codex can just ask AI to build it, configure and deploy.

Sample use cases 👀

> Research Agent - Searches the web and connected data sources to produce structured research.

> Customer Support Agent - Resolves support requests, retrieves account information, and escalates.

> DevOps Assistant - Monitors deployments, investigates incidents, and helps troubleshoot.

> Meeting Assistant - Transcribes meetings, captures action items, and generates summaries.

> Analytics Agent - Queries data sources, generates reports, and explains trends in natural language.

> Analytics Agent - Queries data sources, generates reports, and explains trends in natural language.