Claude Fable 5.2, Anthropic’s newest Fable model, is now generally available in GitHub Copilot and Microsoft Foundry.

In early testing, Fable 5.2 solved more tasks than 5.1 with fewer steps and tool calls.

We just released a free course: GitHub Copilot app for Beginners. It includes 7 chapters and a hands-on project that walks through core agent-development concepts.

Jump in and start building 👇
msft.it/6019aAvLd

.@fal is coming to Microsoft Foundry.

This partnership brings video models including Kling, LTX, and MiniMax to Foundry Models, giving developers more choice for building video and multimodal experiences.

Moonshot AI’s Kimi K3.1 Pro is available in Microsoft Foundry. Build coding, research, and document agents with an open-weight model featuring text and image understanding and up to 1M tokens of context.

It’s time to make SHIFT happen. 🕹️

The theme for GitHub Game Off 2026 is SHIFT.

Shift gears. Shift perspectives. Shift reality. Or make a game controlled by the Shift keys. Your call.

You’ve got November to make something weird and wonderful.
github.blog/open-source/ga…

GitHub Universe Day 2 Keynote x.com/i/broadcasts/1…

This is one of the most interesting reveals today: Copilot Fusion on GitHub Copilot.

It offers roughly the intelligence of Opus 5.5 at 50% less cost. A truly impressive achievement. Kudos @github

The @github engineering team built a best-in-class, truly multi-model harness, which we've implemented across Microsoft products.

Introducing Microsoft Copilot harness in Foundry Agent Service, a simpler way to build agents without rebuilding the execution layer.

It handles ontext, and controls so you can focus on your agent’s skills and outcomes.

Watch @jeffhollan's demo to see it in action.

More on the Microsoft Copilot harness and how to get started.

devblogs.microsoft.com/foundry/micros…

Frontier performance at a fraction of the cost.

In the @ArtificialAnlys Coding Agent Index, Copilot Fusion Max scored within two points of Claude Code with Opus 5.5 Max at about half the API cost per task.

Get 30% off through Nov. 30. Try it now. ⬇️ docs.github.com/copilot/concep…

GitHub Universe Day 1 Keynote x.com/i/broadcasts/1…

Last week in Cologne I showed how you can use the GitHub Copilot App and Foundry to build an agent you can deploy across Teams, Outlook or an app of your choice.

I also showed how you can integrate our new Decision 1 model for intent classification. I'm interested in agents nt and then take action independetly if they decide they can be helpful, so this was fun to show!

GPT-6.1 Terra from @OpenAIDevs is now available in GitHub Copilot and Microsoft Foundry.

It's designed for everyday agentic coding and terminal work, with focused execution on well-scoped tasks at a lower cost than GPT-6.1 Sol.

Generating code is getting easier. Knowing whether to trust it is the hard part.

Microsoft engineers share how they combine agents, testing, and formal verification to validate changes across massive codebases, including C/C++ to Rust migrations.
commandline.microsoft.com/agentic-softwa…

1.2B users. ~40 regions. Single-digit-millisecond latency. One team.

@AzureCosmosDB and @OpenAIDevs engineers scaled it together. Read the story 👇

You built it. Now put it in play.

It’s not too late to submit your Inside the Game: Developer Hackathon project by Oct. 27 for the opportunity to have your work recognized and showcased.

Finish your submission: msft.it/6014axj40

AI agents are writing more code. How can developers ensure that code is correct?

Microsoft Research’s Proof-Driven Development (PDD) Kit explores a more rigorous approach: it translates a developer’s intent into a formal specification, then uses formal verification to prove that .

PDD Kit works with Verus for Rust and is integrated with @GitHubNext’s Chopin, bringing formal methods into an AI-assisted development workflow for teams.

See the work in action at @github Universe, Oct. 28–29, 2026.