Power Platform Community Forum Thread Details

Is there any way to build an agent with Opus as the default model?

I'm trying to produce a workflow that will run an Insight Explorer (existing research team agent) prompt and a separate external literature review prompt, merge the results together, and develop a comprehensive synthesis plus additional actionable delivery format. I've scripted the process and the two prompts, but I can't seem to accomplish this in CoPilot Studio or in a new agent. I can accomplish these as separate scripts, but I was trying to operationalize for more efficient team workflows.

Is this possible?

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General topics

Hi @MA-29062314-0

Yes, you can build an agent that defaults to Claude Opus 4.6 (GA) or Opus 4.7 (Experimental), but not in the Agent Builder inside Microsoft 365 Copilot Chat (what your screenshot shows). You need the full Microsoft Copilot Studio standalone portal. Create a new agent here https://copilotstudio.microsoft.com/ or open your existing Agent Builder agent and use "Copy to Copilot Studio". The core configuration and instructions are preserved, and you unlock advanced settings (including the model picker).

Opus is an external model (Anthropic is a Microsoft subprocessor), so you have to enable Anthropic in the Microsot 365 Admin Center.

Copilot -> Settings -> AI providers operating as ‎Microsoft‎ subprocessors

Researcher Agent:
The Researcher agent's "Model Council" in M365 Copilot already does GPT + Claude in parallel and produces a comparison/critique. It solves much of your stated use case today, no build required.