SpecificationGoogle GeminiMicrosoft Copilot
Starting PriceFree $0/month · Google AI Plus from $4.99/monthFree $0/month · Microsoft 365 Personal from $9.99/month
AI ModelsGemini 3 Flash-Lite / Gemini 3 Flash / Gemini 3 Pro; availability can changeMicrosoft Copilot uses OpenAI GPT-5.x family in Microsoft 365 Copilot; exact model varies by mode and rollout
Context WindowFree 32K tokens · AI Plus 128K · AI Pro and Ultra 1MNot disclosed as a single consumer-app context window; depends on Copilot experience and underlying model
Advanced ReasoningStandard / Extended thinking; Deep Think available on eligible Ultra plansAdvanced Copilot chat with reasoning and agentic workflows; higher usage on paid plans
Web SearchGoogle Search integration with links and grounding where availableWeb-grounded Copilot answers and cited online sources
Deep ResearchMulti-step Deep Research with Google Search, uploaded files, optional Gmail/Drive and NotebookLM sources; higher limits on paid plansResearcher replaces retired Deep Research; multi-step cited reports on Microsoft 365 Premium/Pro and eligible business licenses
Image UnderstandingImage and photo input; can interpret screenshots, charts and visual documentsUpload PNG/JPEG/PJP/JFIF images; Copilot Vision can interpret screen or camera during supported voice sessions
Image GenerationGenerate and edit images within Gemini; model and daily limits vary by subscriptionAI image creation from prompts; free capacity limits and higher allowances on paid Microsoft 365 tiers
Voice InputSpoken prompts through Gemini mobile and Gemini LiveMicrophone dictation and voice prompts on supported platforms
Voice ConversationsGemini Live conversational voice, camera and screen context on eligible devicesReal-time Copilot Voice; feature availability and plan restrictions vary between personal and work accounts
Video UnderstandingUploaded video analysis: up to 5 minutes standard; up to 1 hour on AI Pro/Ultra; 2 GB per videoCopilot Vision offers live camera or screen understanding in eligible voice sessions; general video-file analysis limits not disclosed
Conversation MemoryPersonalization and past-chat referencing where supported; availability varies by account, region and settingsCopilot memory and personalization where available; previous chats accessible across supported experiences
File AnalysisDocuments, spreadsheets, images, audio and video; up to 10 files per prompt; 100 MB/file except video up to 2 GBPDF, DOCX, XLSX, PPTX, PNG, JPEG, TXT, JSON, CSV, MD and others; up to 20 files per conversation, 50 MB each
IntegrationsGmail / Drive / Docs / Maps / Flights / YouTube and supported Connected Apps; permissions varyWord / Excel / PowerPoint / Outlook / Teams / OneDrive / SharePoint / Edge and eligible connectors
