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Xiaomi's MiMo-V2.6 Is Now the #1 Open-Weight AI Model in the World

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The most interesting AI lab in the world right now might be a phone company. Xiaomi's MiMo team has released MiMo-V2.6 — two open-weight models, Pro and Flash — and the flagship MiMo-V2.6-Pro has just debuted at the top of Artificial Analysis's Intelligence Index with a score of 46, ahead of every other open model on the planet, including DeepSeek's best. MiMo-V2.6-Pro is a sparse mixture-of-experts model with 1.02 trillion total parameters (42 billion active per token). The smaller Flash variant carries 309 billion total parameters with 15 billion active. Both are natively multimodal — text, image, video, and audio — with a one-million-token context window. The headline grabber is the price tag. Xiaomi says the reinforcement-learning run behind Pro took under six days and cost about $2.62 million. Flash cost roughly $850,000. Not long ago, frontier training runs were talked about in hundreds of millions of dollars; Xiaomi did this one for the price of a nice house. And und...

OpenAI Is Testing 'Sponsored Agents' — Ads You Can Talk To Inside ChatGPT

OpenAI Sponsored Agents: ads you can talk to inside ChatGPT

Intro

On September 16, 2026, OpenAI began testing Sponsored Agents, a new ad format inside ChatGPT. Instead of clicking an ad and landing on a website, you can now have a conversation with the ad itself.

What Are Sponsored Agents?

A Sponsored Agent is a clearly labeled AI chat session run by the advertiser, separate from your ChatGPT conversation. You can ask questions about the product and get answers on the spot, visiting the vendor's site only when you're ready. For now, it's a limited US test with a small group of select advertisers.

Launch Partners

The first launch partners are HubSpot and Shopify. HubSpot users will be able to run ChatGPT ad campaigns from inside HubSpot, using their CRM data. US Shopify merchants get a ChatGPT Ads app in the Shopify App Store with catalogs synced automatically, and the international rollout begins September

23. There's also a new natural-language Ads Manager plugin for ChatGPT Work.

Why It Matters

The click no longer has to lead to a landing page — the ad itself becomes the conversation. That said, OpenAI has shared no performance data yet, so the impact on conversions remains unproven. Businesses could get better-qualified leads, while users face fewer redirects. The big question now is whether Google copies this format in AI Mode.

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