ChatGPT vs Microsoft Copilot : comparaison complète ! Lequel choisir ? [2026]

Comparaison détaillée entre ChatGPT et Microsoft Copilot : tarifs, fonctionnalités, performances et bien plus. Trouvez l'outil qui vous convient le mieux.

Verdict :ChatGPT and Microsoft Copilot share GPT-4o but serve different purposes. ChatGPT gives early access to OpenAI's newest models (o3, GPT-4.5) with GPTs customization and advanced Code Interpreter. Microsoft Copilot seamlessly integrates with Word, Excel, PowerPoint, and Teams for dramatic business productivity gains. For maximizing standalone AI capabilities, choose ChatGPT. For Microsoft 365 users, Copilot is the natural choice.

Présentation de ChatGPT & Microsoft Copilot

1

ChatGPT

The world's most widely used assistant IA conversationnel developpe par OpenAI. Propulse par GPT-5.4 Thinking, it handles a large gamme de tasks notamment generation de texte, coding, analyse de donnees, and image/creation de videos.

En savoir plus sur ChatGPT
2

Microsoft Copilot

An assistant IA developpe par Microsoft. Integrated into Windows, Edge, and Office products, it prend en charge everything from everyday tasks to business productivite.

En savoir plus sur Microsoft Copilot

Comparaison des fonctionnalités et tarifs

Tarification (Individuel)
ChatGPTFree / Plus $20/mo / Pro $200/mo
Microsoft CopilotFree / Copilot Pro $20/mo
料金(法人向け)
ChatGPTTeam $25//mois / Enterprise $60//mois
Microsoft CopilotMicrosoft 365 Copilot $30//mois(M365必須)
搭載モデル
ChatGPTGPT-4o, GPT-4.5, o3(OpenAI最新)
Microsoft CopilotGPT-4o(Microsoft経由)
Office連携
ChatGPTNon pris en charge(サードパーティ連携のみ)
Microsoft CopilotWord・Excel・PowerPoint・Outlookと深く統合
Génération d'images
ChatGPTDALL-E 3 integrated
Microsoft CopilotDALL-E 3 (via Designer)
Recherche web
ChatGPTReal-time web search
Microsoft CopilotBing search integration
Capacité de programmation
ChatGPTStrong (Code Interpreter)
Microsoft CopilotBasic code generation
Windows統合
ChatGPTNon pris en charge
Microsoft CopilotWindows 11にネイティブ統合
Personnalisation
ChatGPTGPTs & plugins for high extensibility
Microsoft CopilotCopilot Studio (business customization)
Support du japonais
ChatGPTPrise en charge complète(自然な日本語生成)
Microsoft CopilotPrise en charge complète

Notre verdict

Notre verdict

ChatGPT and Microsoft Copilot share GPT-4o but serve different purposes. ChatGPT gives early access to OpenAI's newest models (o3, GPT-4.5) with GPTs customization and advanced Code Interpreter. Microsoft Copilot seamlessly integrates with Word, Excel, PowerPoint, and Teams for dramatic business productivity gains. For maximizing standalone AI capabilities, choose ChatGPT. For Microsoft 365 users, Copilot is the natural choice.

Recommandations par cas d'usage

1

Daily Microsoft 365 users (Word, Excel, PowerPoint)

Recommandé :Microsoft Copilot

AI-powered Word drafts, Excel analysis, PowerPoint slide generation, and Teams integration seamlessly enhance Office workflows.

2

Advanced analysis and coding with the latest AI models

Recommandé :ChatGPT

Early access to OpenAI's latest (o3, GPT-4.5). Code Interpreter enables advanced data analysis and code execution.

3

Getting started with AI assistance for free

Recommandé :ChatGPT

Free plan includes GPT-4o access. GPTs store offers thousands of custom AIs for free. Copilot free tier is more limited.

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