Microsoft Research's AI Frontiers group is over. John Langford, one of the researchers who helped create the group, announced on November 6 that he has left Microsoft, writing in a blog post bluntly titled "The End of AI Frontiers" that the team was "non-consensually reorged away" — and calling the experience "a bit of a train wreck."

AI Frontiers was formed inside Microsoft Research in 2023, in the months after ChatGPT's release made organised AI research a priority. The group, about 50 people strong, was set up to run coherent, long-term research efforts rather than scattered projects. Its best-known work includes AutoGen, the open-source framework for orchestrating multiple AI agents, and Fara, a computer-use agent that can operate software on a user's behalf. Its output also included research on Next Latent, Dion3 and the Full Bandwidth Transformer.

A reorg that prized scaling over research

The turning point came in early September, when Microsoft moved AI Frontiers out of Microsoft Research and into Microsoft AI, the division led by the former Inflection team. Langford writes that the new leadership's philosophy centred on scaling — bigger models, more training data and extending existing architectures — and was, in his words, "aggressively not research." The two approaches, he concluded, were incompatible.

Langford says he placed his team members as best he could before leaving, and that every other founding leader of the group reached a similar conclusion about departing. He considered returning to Microsoft Research instead, but decided against it, writing that he was not comfortable working somewhere research had no path to being used. There will be no internships with the group in the coming year, he added — a role he said he had enjoyed.

AutoGen is already on its own

The group's flagship project had already been cut loose before Langford's post. On October 16, a change to the AutoGen repository's README stated that Microsoft is "not providing bug fixes, security fixes, new features, or support for this project." The accompanying pull request described AutoGen as archived and no longer maintained by Microsoft, and its last release dates back to September 2025. Microsoft has since shipped Agent Framework 1.0, released in April 2026, as its supported successor for building agents. The Fara repository, meanwhile, remains MIT-licensed and unarchived, though its last update was in September.

A wider changing of the guard

Langford's exit is not an isolated departure. Other senior figures, including Xbox president Sarah Bond and former Azure AI chief Eric Boyd — who joined Anthropic as its head of infrastructure in April — have also left Microsoft in recent months. Microsoft has not publicly commented on Langford's account of the reorganisation.

The episode captures a tension running through the whole AI industry: as the biggest labs pour hundreds of billions of dollars into scaling existing models, the space for open-ended, fundamental research inside those same companies is narrowing. At Microsoft, at least for now, scaling has won the argument.