OpenAI’s GPT-Image-1.5 model is now available in Microsoft 365 Copilot

Microsoft 365 Copilot will replace GPT-4o with OpenAI’s GPT-Image-1.5 from mid-December 2025 to late January 2026, enhancing image generation quality, speed, and accuracy without changing admin controls or compliance settings. Eligible users receive the update automatically. Introduction We’re updating Microsoft 365 Copilot image generation experiences by introducing OpenAI’s latest image generation model—GPT‑Image‑1.5—into Microsoft 365 Copilot and Copilot Chat. This update improves prompt adherence, image editing precision, visual fidelity, and generation speed, enabling users to create higher-quality, more accurate visuals across Copilot Chat entry points and the Create experience in the Microsoft 365 Copilot app. When this will happen Rollout start (web, Windows, macOS, and mobile): Late December 2025 Rollout end (web, Windows, macOS, and mobile): Late January 2026 General Availability (Worldwide): We will begin rolling out in mid-December 2025 and expect to complete by late January 2026. How this affects your organization Who is affected: Tenants where Copilot image generation experiences are currently available. Access level depends on licensing: Users with a Microsoft 365 Copilot license have priority access. Users without a Microsoft 365 Copilot license have standard access, which may vary based on service capacity. Learn more: Standard versus priority access to features in Microsoft 365 Copilot Chat | Microsoft Support What will happen: GPT‑4o will be replaced by GPT‑Image‑1.5 for supported Microsoft 365 Copilot image generation scenarios. New image generation and supported image editing requests will automatically use GPT‑Image‑1.5. No new admin controls or configuration changes are introduced; existing policies continue to apply. What users may notice: What does not change: What you can do to prepare Additional resources: Compliance considerations Improved instruction following for text-to-image requests. More accurate rendering of requested styles, composition, and on-image text. More reliable region-specific image editing with fewer unintended changes. Higher-quality visuals with more realistic lighting, textures, and composition. Faster generation—up to 4× improvement for many prompts. More consistent preservation of facial likeness, lighting, and color tone during iterative edits. No change to admin controls or governance settings. Compliance, security, and privacy commitments remain the same. Customer data handling, storage locations, and processing paths are unchanged. Existing Copilot image safety and compliance controls […]

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