Copilot
A copilot is an AI assistant embedded within a software application that provides real-time suggestions, automates subtasks, and answers natural-language questions, keeping the human user as the primary decision-maker rather than replacing them.
A copilot is a design pattern for AI integration in which a language model acts as a real-time assistant within an existing tool, augmenting the user's work rather than fully automating it. The metaphor draws from aviation: a copilot handles many tasks but the human pilot retains final authority. In software, this translates to features such as code autocomplete in an editor, draft generation in an email client, formula suggestions in a spreadsheet, or contextual answers inside a customer support platform — all triggered by the user's current context and delivered without leaving the primary interface.
Technically, copilot implementations send the user's current document, selected text, cursor position, or natural-language query to a backend LLM, then insert or display the response within the host application. The integration requires access to application state to generate contextually relevant output. More advanced copilots maintain conversation history, support multi-turn interaction, and can invoke tools on the user's behalf — running code, querying a database, or calling an external API — while presenting results for user review before committing any action.
GitHub Copilot, launched in technical preview in June 2021 and made generally available in June 2022, popularized both the term and the pattern, demonstrating that AI-assisted code completion could measurably increase developer throughput for routine tasks. Microsoft subsequently extended the Copilot brand across its product portfolio: Microsoft 365 Copilot for Office applications (launched November 2023), Security Copilot for threat analysis, and Copilot Studio for building custom copilots. Comparable implementations include Salesforce Einstein Copilot, Notion AI, and Gemini for Google Workspace.
As of mid-2026, the copilot pattern is one of the dominant deployment models for LLMs in enterprise software. Enterprise software surveys consistently rank in-product AI assistance — rather than standalone chat interfaces — as the most valued AI feature, driving incumbent software vendors to integrate LLM capabilities directly into existing tools. The pattern is also expanding beyond screens: copilot-style assistance is appearing in developer hardware environments, automotive infotainment systems, and augmented reality interfaces.