Observed Signal · Mar 31, 2026 · Product Launch · Source: onlinemarketing.de · Impact: 4/5 · Sentiment: Positive
Microsoft Adds Multi-Model Tools to M365 Copilot
Microsoft has added two multi-model systems—Model Council and Critique—to M365 Copilot, announced by CEO Satya Nadella. Model Council runs the same user prompt concurrently across models (notably OpenAI and Anthropic) to produce separate standalone reports; a judging model then highlights overlaps and differences for Microsoft 365 Researcher users. Critique separates report generation and evaluation so one model drafts content while another reviews, fact-checks and refines it. Microsoft cites DRACO-Benchmark results (using OpenAI’s GPT-5.2 as LLM judge) claiming Critique outperforms comparable deep‑research tools such as Perplexity Deep Research, Gemini Deep Research and OpenAI Deep Research. The features are being rolled out via Microsoft’s Frontier program; Microsoft 365 apps also gain a Copilot Cowork function for delegating multiple tasks. The article was published on t3n as a content cooperation with OnlineMarketing.de.
A major platform (Microsoft) is deploying multi-model capabilities in M365 Copilot; this affects enterprise AI workflows, vendor competition (OpenAI, Anthropic), and how marketers/researchers use Copilot for content, insights and analysis.
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Key Takeaways & Evidence Grounding
- Microsoft introduced Model Council and Critique as multi-model features within M365 Copilot.
- Model Council can run the same prompt simultaneously across models from OpenAI and Anthropic and produces standalone reports for comparison.
- Critique separates generation and evaluation roles: one model drafts a report and another reviews, fact-checks and refines it.
- Microsoft cites DRACO-Benchmark results (with OpenAI GPT-5.2 as judge) claiming Critique outperforms Perplexity Deep Research, Gemini Deep Research and OpenAI Deep Research.
- The multi-model features are being rolled out via Microsoft’s Frontier program; Microsoft 365 also gained a Copilot Cowork function.
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Copilot Cowork: AI Handles Microsoft 365 Tasks
Microsoft is expanding its 365 Copilot with Copilot Cowork, an AI feature that can automatically generate and execute work plans across Outlook, Teams, and Excel. It analyzes data from emails, files, meetings, and documents, creating milestones, tracking progress, and requesting decisions as needed. Copilot Cowork aims to move beyond chat-style support to autonomous task execution, using a system called Work IQ to orchestrate workflows across apps. The solution can prepare briefs, presentations, and analyses for meetings and product launches, and can perform enterprise research and financial analyses. It is currently being tested with select customers, with wider availability planned for the end of March 2026 via the Frontier program. The article also notes Microsoft’s broader use of multi-model AI, including Claude from Anthropic, within Copilot Studio and related tools, all operating under Microsoft 365 security and governance controls.
GPT-5.6 becomes preferred model in Microsoft 365 Copilot
OpenAI announced during the GPT‑5.6 launch that GPT‑5.6 will be the “preferred model” powering Microsoft 365 Copilot across productivity apps including Word, Excel, PowerPoint, Copilot Chat and Cowork. OpenAI published a blog post saying GPT‑5.6 will support Microsoft users across the suite; Microsoft will serve the model natively in Copilot experiences and can also access it via the OpenAI API. The disclosure follows Bloomberg reporting that Microsoft has been increasing use of its own in‑house models (MAI) to cut costs, which sparked coverage questioning whether the two companies were drifting apart. OpenAI’s announcement frames the move as a continuation of the partnership, but it did not fully define what “preferred model” entails and does not appear to negate prior reports that Microsoft is also deploying its own models to reduce expenses.
Microsoft Restructures AI Leadership to Boost Copilot Innovation
Microsoft reorganized teams working on its consumer and commercial Copilot assistants, appointing Jacob Andreou as executive vice president responsible for the combined Copilot experience and moving key Microsoft 365 and Copilot platform leadership under CEOs-level reporting. The change is intended to free Microsoft AI CEO Mustafa Suleyman to concentrate on developing new frontier models and a “superintelligence” effort focused on enterprise-tuned, cost-optimized model lineages over the next 3–5 years. Microsoft continues to incorporate models from Anthropic and OpenAI and cited modest current consumer traction for Copilot (about 6 million daily active users in February versus ChatGPT’s 440 million and Google Gemini’s 82 million, per Sensor Tower). About 3% of commercial Office subscribers have access to the Microsoft 365 Copilot add-on.
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