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

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

Verdict :ChatGPT excels in versatility, handling virtually any AI task. NotebookLM uses only your uploaded documents as sources, resulting in extremely low hallucination rates -- ideal for academic research and report writing. Its AI audio podcast generation feature is truly unique. For general AI use, choose ChatGPT; for deep analysis of specific documents, choose NotebookLM. Since NotebookLM is completely free, using both is highly recommended.

Présentation de ChatGPT & NotebookLM

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

NotebookLM

Google's recherche en IA assistant. Generates answers, summaries, and audio overviews base sur your uploaded materials.

En savoir plus sur NotebookLM

Comparaison des fonctionnalités et tarifs

Tarification
ChatGPTFree / Plus $20/mo
NotebookLMFree (Google account only)
情報源
ChatGPT学習データ + Web検索
NotebookLMユーザーがアップロードした文書のみ
Précision
ChatGPTGood (some hallucination possible)
NotebookLMExcellent (source-grounded, high precision)
Citations des sources
ChatGPTShown during web search
NotebookLMSpecific source passages cited with every answer
音声変換
ChatGPT◎ 音声会話モード
NotebookLM◎ ポッドキャスト自動生成
文章生成
ChatGPT◎ あらゆるジャンルにPris en charge
NotebookLM○ ソースベースの文章生成
Génération de code
ChatGPTExcellent
NotebookLMLimited (not code-focused)
汎用性
ChatGPT◎ 何でもPris en charge
NotebookLM△ リサーチ・学習に特化
共有・協働
ChatGPT○ チーム共有可
NotebookLM◎ ノートブック単位で共有

Notre verdict

Notre verdict

ChatGPT excels in versatility, handling virtually any AI task. NotebookLM uses only your uploaded documents as sources, resulting in extremely low hallucination rates -- ideal for academic research and report writing. Its AI audio podcast generation feature is truly unique. For general AI use, choose ChatGPT; for deep analysis of specific documents, choose NotebookLM. Since NotebookLM is completely free, using both is highly recommended.

Recommandations par cas d'usage

1

Broad everyday AI usage

Recommandé :ChatGPT

All-purpose capability for writing, code, images, and analysis. The ideal everyday AI assistant.

2

Deep analysis of papers and documents

Recommandé :NotebookLM

Source-grounded accurate answers with cited passages. Ideal for academic use.

3

Converting documents into podcast format

Recommandé :NotebookLM

Unique feature that auto-generates AI audio podcasts from documents. Available for free.

Avis détaillés

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