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Comment utiliser Obsidian AI : une prise de notes plus intelligente en 2026

par | Last updated Aug 27, 2026

Démarrage rapide

This guide covers every Obsidian AI feature:

Temps nécessaire : 5 minutes par fonctionnalité

Vous trouverez également dans ce guide : Conseils de pro | Erreurs courantes | Dépannage | Tarification | Alternatives

Pourquoi faire confiance à ce guide ?

I have used Obsidian daily for two years and tested every AI plugin covered here.

Ce tutoriel est issu d'une véritable expérience pratique, et non de captures d'écran fournies par le vendeur.

Here is a short look at how I work inside my own vault:

Now let us get to the practical part.

How to use Obsidian AI

Obsidian is one of the most flexible note taking apps in the world right now.

But it ships with no AI at all.

You add that yourself with community plugins like Smart Connections and Obsidian Copilot.

That is the difference between a folder of files and a vault that thinks with you.

This guide shows you how, feature by feature.

Tutoriel d'Obsidian AI

This How to Use Obsidian AI tutorial walks through every feature step by step, from the first setup to the tricks that turn you into a power user.

Obsidian AI

Turn your notes into a thinking tool. Obsidian is free for personal use, stores every file on your own computer, and lets you add AI plugins in minutes. No account needed to start.

Getting Started with Obsidian AI

Before adding AI, finish this one-time setup.

Cela prend environ trois minutes.

Regardez d'abord ce bref aperçu :

Obsidienne

Passons maintenant en revue chaque étape.

Étape 1 : Créez votre compte

Go to the Obsidian website and download the free app.

No account is needed for the app itself.

Create an account only when you want Sync or Publish.

Point de contrôle: The installer finishes without asking for a card.

Step 2: Open the App and Create a Vault

Launch Obsidian, click Create new vault, and pick a folder on your disk.

That folder is your obsidian vault, and every note lives there as a plain file.

Here is what the interface looks like:

Obsidienne

Point de contrôle: You should see an empty editor with sidebars on both sides.

Step 3: Turn On Community Plugins

Open Settings, choose Community plugins, then turn off restricted mode.

This is the moment Obsidian becomes an application IA.

✅ Terminé : Vous êtes prêt à utiliser n'importe quelle fonctionnalité ci-dessous.

How to Use Obsidian AI Internal Linking Tool

Liens internes lets you connect notes with double brackets so AI plugins follow your context.

Voici comment l'utiliser étape par étape.

Étape 1 : Ouvrir une note

Open any note in your obsidian vault and place the cursor mid-sentence.

Step 2: Type Double Brackets

Type two square brackets, then start typing the note name you want.

Voici à quoi cela ressemble :

Obsidienne

Point de contrôle: A dropdown lists matching notes as you type.

Press Enter to link, or create a brand new note instead.

✅ Résultat : Your notes now form a network that outils d'IA can follow.

💡 Conseil de pro : Smart Connections reads these links. Tight linking gives better results from every Assistant IA.

How to Use Obsidian AI Visual Graph

Graphique visuel lets you see how ideas cluster across your obsidian vault at a glance.

Voici comment l'utiliser étape par étape.

Step 1: Open Graph View

Press Ctrl+G, or click the graph icon in the left sidebar.

Step 2: Filter the View

Use the filter settings to hide attachments and show one tag.

Voici à quoi cela ressemble :

Obsidienne

Point de contrôle: Clusters of related notes appear as coloured groups.

Step 3: Spot the Gaps

Find orphan notes sitting alone, then link them to a hub.

✅ Résultat : You can see where your knowledge is thin before writing.

💡 Conseil de pro : Run Smart Connections on an orphan note first. It suggests links the graph missed.

How to Use Obsidian AI Canvas Workspace

Canvas Workspace lets you spread notes and AI drafts across one infinite board.

Voici comment l'utiliser étape par étape.

Étape 1 : Créer un canevas

Right-click a folder, choose New canvas, then name the file.

Step 2: Drag Notes In

Drag existing obsidian notes onto the board and group them by theme.

Voici à quoi cela ressemble :

Obsidienne

Point de contrôle: Cards show live note content, not static copies.

Step 3: Add AI Output

Paste AI drafts into cards, then connect the cards with arrows.

✅ Résultat : One board now holds your research, your ideas, and every AI answer.

💡 Conseil de pro : Keep a separate AI Ideas canvas. Generated content stays apart from your original thinking.

How to Use Obsidian AI Plugin Library

Bibliothèque de plugins lets you install community plugins that add AI tools to Obsidian.

Voici comment l'utiliser étape par étape.

Step 1: Open Community Plugins

Go to Settings, choose Community plugins, then turn off restricted mode.

Step 2: Search and Install

Search for Smart Connections, Copilot, or AI Assistant, then click Install.

Voici à quoi cela ressemble :

Obsidienne

Point de contrôle: The plugin appears in your installed list with a toggle.

Step 3: Enable and Configure

Turn the plugin on, open its tab, and paste your api key.

✅ Résultat : Your AI integration is live and ready to read notes.

💡 Conseil de pro : Check reviews and permissions first. Community plugins are mostly safe, but nobody audits them.

How to Use Obsidian AI Collaboration Tool

Collaboration Tool lets you share an encrypted vault with teammates and keep every version.

Voici comment l'utiliser étape par étape.

Step 1: Turn On Sync

Buy a Sync account, then enable Sync inside the settings panel.

Step 2: Create a Shared Vault

Create a remote vault, then invite collaborators by email address.

Voici à quoi cela ressemble :

Obsidienne

Point de contrôle: Teammates see your changes within a few seconds.

Step 3: Set Version History

Choose how long version history is kept before older data gets trimmed.

✅ Résultat : Your team edits one shared collection of notes without conflicts.

💡 Conseil de pro : Keep AI drafts in their own folder. Teammates can then tell machine texte from yours.

How to Use Obsidian AI Daily Notes

Daily Notes lets you capture fleeting thoughts and let AI summarize your week.

Voici comment l'utiliser étape par étape.

Step 1: Enable Daily Notes

Open Settings, find Daily notes, then set a folder and date format.

Step 2: Capture Fleeting Thoughts

Write quick lines all day. Do not stop to organise anything.

Voici à quoi cela ressemble :

Comment gérer ses notes quotidiennes dans Obsidian 2026 (étape par étape)

Point de contrôle: A new dated note opens each morning automatically.

Step 3: Summarize With AI

Ask Copilot chat mode to summarize this week of daily notes.

✅ Résultat : Every stray thought gets captured, then processed into something you can search.

💡 Conseil de pro : Run a weekly review. Distracted ideas resurface instead of sitting stuck at the bottom.

How to Customize Obsidian AI Appearance

Customizable Appearance lets you shape the interface around the way you actually write.

Voici comment l'utiliser étape par étape.

Étape 1 : Ouvrir les paramètres d’apparence

Go to Settings, then Appearance, and pick a light or dark base.

Step 2: Adjust Reading Comfort

Change font size, line width, and heading scale to suit your writing.

Voici à quoi cela ressemble :

Personnaliser l'apparence de l'obsidienne

Point de contrôle: Text reflows the moment you move a slider.

Step 3: Toggle Sidebar Panels

Hide panels you never use so the AI chat panel gets room.

✅ Résultat : The interface finally matches how you read long AI answers.

💡 Conseil de pro : Widen readable line length before pasting long AI output. Cramped lines hide obvious errors.

How to Use Obsidian AI Custom Themes

Custom Themes lets you swap the whole look of your app in one click.

Voici comment l'utiliser étape par étape.

Step 1: Browse the Theme List

Open Settings, then Appearance, and click Manage beside Themes.

Step 2: Install a Theme

Preview a few options, then install the one that fits your work.

Voici à quoi cela ressemble :

Comment j'ai personnalisé mon thème Obsidian avec CSS et les paramètres de style

Point de contrôle: The whole app repaints the second you apply it.

Step 3: Tweak With Style Settings

Install the Style Settings plugin to adjust colours and spacing further.

✅ Résultat : Your vault looks like a tool you actually want to open.

💡 Conseil de pro : Minimal themes pair well with an AI chatbot panel because they keep contrast high.

How to Use Obsidian AI Offline Access

Accès hors ligne lets you run local models so your notes never leave your computer.

Voici comment l'utiliser étape par étape.

Step 1: Confirm Local Storage

Your notes are plain markdown files sitting on your own disk.

Step 2: Install LM Studio

Download LM Studio, then start a local inference server on your machine.

Voici à quoi cela ressemble :

Point de contrôle: The server shows a local URL and a model name.

Step 3: Point Obsidian At It

Paste that server URL and model name into your AI plugin settings.

✅ Résultat : Large language models answer questions without your data leaving the computer.

💡 Conseil de pro : Smaller models feel slower but keep private research fully offline. Test a few first.

Obsidian AI Pro Tips and Shortcuts

After two years of daily use, these are the tips I give every new user.

Imaginer your vault as a map of meaning, and these shortcuts as the fastest route across it.

Raccourcis clavier

ActionRaccourci
Ouvrir la palette de commandesCtrl + P
Quick switcher for notesCtrl + O
Open graph viewCtrl + G
Insérer un lienCtrl + K

Fonctionnalités cachées que la plupart des gens ignorent

  • Similarity scores: The Smart Connections plugin scores each match, so you can see how close two ideas really are. Old insights resurface on their own.
  • Vault Q&A: Copilot indexes every note, then lets you talk to your whole vault in plain English or ask for feedback on a draft.
  • Auto metadata: Pair Templater with an AI prompt to fill tags and summaries, killing hours of manual tasks.

Obsidian AI Common Mistakes to Avoid

Mistake #1: Treating AI Output as Finished Writing

❌ Faux : Pasting generated text straight into permanent notes and moving on.

✅ À droite : Verify AI-generated content, then rewrite it in your own words. AI bridges ideas; it does not replace original thinking.

Mistake #2: Installing Every AI Plugin at Once

❌ Faux : Adding AI plugins until the app crawls and nothing feels reliable.

✅ À droite : Start with Smart Connections alone. Add Obsidian Copilot later, once you actually need chat mode.

Mistake #3: Sending Private Notes to Hosted AI Models

❌ Faux : Pasting client research into a hosted ai chatbot without reading the terms.

✅ À droite : Run local models through LM Studio for anything sensitive. For example, client research should never leave your machine.

Obsidian AI Troubleshooting

Problem: Smart Connections Returns Nothing

Cause: Embeddings are still building, which takes a while on a large vault.

Réparer: Wait for indexing to finish. Watch the progress notice in the status bar.

Problem: Copilot Shows an API Key Error

Cause: The key has no credit, or a stray space came along when you pasted it.

Réparer: Copy the key again from your provider account, paste it, then reload Obsidian.

Problem: AI Answers Miss Relevant Information

Cause: The plugin has not indexed your newest obsidian notes yet.

Réparer: Run the refresh index command, then ask the exact same question encore.

📌 Note: If none of these help, ask in the Obsidian community forum.

Qu'est-ce qu'Obsidian AI ?

Obsidienne est un application de prise de notes that keeps every file as plain markdown on your own computer.

It has no built-in AI.

Obsidian AI simply means adding AI to that app through community plugins.

Using ai in obsidian covers two different things.

Semantic search surfaces related notes, while generative ai writes, summarises, and answers questions.

Thousands of ai enthusiasts keep that plugin library growing every week.

Think of it like hiring a librarian for a library you already own.

Regardez ce bref aperçu :

Here are the features you will use most:

  • Liens internes : Double-bracket links build the network that AI plugins read
  • Graphique visuel : A live map that shows how your ideas connect
  • Canvas Workspace: An infinite board for research, drafts, and AI output
  • Bibliothèque de plugins : The marketplace where every AI plugin comes from
  • Collaboration Tool: Sync a shared vault across people and appareils
  • Notes quotidiennes : A dated page that catches thoughts before they vanish
  • Customizable Appearance: Font, width, and panel controls for long reading sessions
  • Custom Themes: Community themes that repaint the entire app
  • Accès hors ligne : Plain markdown files plus local models for private work

For the full breakdown, read our Obsidian review, and browse more posts on AI tools while you are there.

Obsidienne

Obsidian AI Pricing

The app is free. Here is what the paid add-ons cost in 2026:

PlanPrixIdéal pour
Synchronisation4 $/moisKeeping one vault current across your phone and laptop
Publier8 $/moisTurning notes into a public website
Catalyseur$25Tôt access builds and insider community access
Commercial50 $/anUsing Obsidian for work at a company

Essai gratuit : The app itself is free for personal use, so every AI plugin costs you nothing to test.

Garantie de remboursement : Sync and Publish bill monthly and can be cancelled at any moment.

Prix ​​de l'obsidienne

💰 Meilleur rapport qualité-prix : Sync — four dollars keeps your notes and AI index the same on every device.

Obsidian AI vs Alternatives

How does Obsidian compare? Here is the landscape:

OutilIdéal pourPrixNotation
ObsidienneLocal-first AI note takingGratuit⭐ 4,6
NotionEspace de travail tout-en-un10 $/mois⭐ 4,6
ClickUpTeam tasks7 $/mois⭐ 4,5
Tout typeLocal-first privacyGratuit⭐ 4,4
CodaDocs plus databases10 $/mois⭐ 4,5
xTilesplanification visuelle8 $/mois⭐ 4,4
CapacitésNotes basées sur les objets12 $/mois⭐ 4,4
ArtisanatBeaux documents10 $/mois⭐ 4,6
AFFiNEOpen-source hybridGratuit⭐ 4,3

Sélection rapide :

  • Meilleur résultat global : Obsidian — free, offline, and endlessly extendable with ai plugins
  • Meilleur budget : Anytype — free, encrypted, and local-first out of the box
  • Idéal pour les débutants : Notion — nothing to configure before you create your first page
  • Best for team tasks: ClickUp — notes sit beside deadlines, owners, and project boards

🎯 Obsidian AI Alternatives

Looking for Obsidian AI alternatives? Here are the top options:

  • 🚀 Notion: Blocks, databases, and built-in AI in one hosted app. Easier for beginners, but your data lives on their servers.
  • 💼 ClickUp : Project tasks, docs, and AI writing in one place. Pick it when work is task-driven, not note-driven.
  • 🔒 Tout type : Encrypted, local-first, and free. The closest match if privacy is your main reason for leaving hosted apps.
  • 📊 Coda: Documents that behave like apps, with formulas and tables. Strong for process docs and team dashboards.
  • 🎨 xTiles : Card-based boards that feel like a digital desk. Good if you think visually more than you think in outlines.
  • 🧠 Capacités : Notes organised by object type instead of folders. Built-in AI helps tag and connect what you save.
  • Artisanat: Polished writing and sharing on Apple devices. The nicest place to write documents other people will read.
  • 🔧 AFFiNE: Open-source mix of docs, whiteboard, and database. Free to self-host if you want full control of your data.

Pour la liste complète, consultez notre Obsidian AI alternatives guide.

⚔️ Obsidian AI Compared

Here is how Obsidian stacks up head to head:

  • Obsidian contre Notion: Notion wins on collaboration and templates. Obsidian wins on speed, offline access, and local AI models.
  • Obsidian contre ClickUp: ClickUp wins for team tasks and deadlines. Obsidian wins for deep research and personal knowledge management.
  • Obsidienne contre n'importe quel type: Anytype matches Obsidian on privacy. Obsidian wins on community plugins and mature AI integration.
  • Obsidian vs Coda: Coda wins for structured data and automation. Obsidian wins for linked writing and offline notes.
  • Obsidian vs xTiles: xTiles wins on visual layout out of the box. Obsidian wins on Canvas plus a full plugin library.
  • Obsidienne contre Capacités: Capacities wins for structured collections. Obsidian wins on local models, custom prompts, and file ownership.
  • Obsidian contre Craft: Craft wins on design and polish. Obsidian wins on AI plugins, graph view, and plain-text control.
  • Obsidian vs AFFiNE: AFFiNE wins for open-source self-hosting. Obsidian wins on stability and a far larger plugin community.

Start Using Obsidian AI Now

You now know how to use every major feature:

  • ✅ Internal Linking
  • ✅ Visual Graph
  • ✅ Canvas Workspace
  • ✅ Plugin Library
  • ✅ Collaboration Tool
  • ✅ Daily Notes
  • ✅ Customizable Appearance
  • ✅ Custom Themes
  • ✅ Accès hors ligne

Étape suivante : Pick one feature and try it today.

Most people start with Internal Linking, because it makes the rest of the vault make sense.

Cela prend moins de cinq minutes.

The fun part starts the day your own notes begin answering back.

Foire aux questions

Comment utiliser l'IA dans Obsidian ?

Open Settings, turn on community plugins, then install Smart Connections or Obsidian Copilot. Add your API key, or point the plugin at LM Studio for local models.

L'IA Obsidian est-elle gratuite ?

Obsidian is free for personal use, and Smart Connections is free too. Copilot needs an api key, so you pay the model provider per request.

Quelle IA est la meilleure pour Obsidian ?

Smart Connections wins at finding relevant information offline. Obsidian Copilot wins at chat mode, custom prompts, and vault-wide answers. Plenty of people run both.

Peut ChatGPT link with Obsidian?

Yes. Paste an OpenAI api key into Copilot or AI Assistant settings. ChatGPT models then answer questions about your obsidian notes inside the app.

À quoi sert Obsidian AI ?

It surfaces related notes, summarizes research, drafts writing, and fills in metadata. Think of it as an assistant that has read your whole vault.

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