ChatGPT PlusProcesses uploads up to 100 MB and handles documents in multiple formats natively95.0NEW£16/month
ClaudeHandles 200,000 token context window, equivalent to 150,000+ words in a single conversation92.7NEW$20/month
WordtuneIntegrates directly into Gmail, Google Docs, and major writing platforms90.3NEW$9.99 per month
Otter.aiAutomatically identifies speakers and generates timestamped summaries of key discussion points88.0NEW$16.99/month
GrammarlyProvides real-time writing suggestions and readability scoring alongside summarisation85.7NEWFree
QuillBotOffers seven writing modes and tone adjustments beyond standard summarisation83.3NEW$9.95 per month
Microsoft CopilotIntegrates with enterprise security, managing access controls and data residency requirements81.0NEWFree
Notion AIOperates within Notion's collaborative database and page environment78.7NEW$10 per user per month
SmmryOffers API access and custom summary length specification in words or sentences74.0NEWFree; Premium available
OpenAI's GPT-4 powered subscription offering advanced summarisation across text, code, and documents. Supports custom instructions, file uploads, and real-time reasoning for nuanced content analysis.
Anthropic's Claude 3 family processes up to 200,000 tokens, ideal for book-length documents and multi-file analysis. Known for detailed, balanced summaries with strong reasoning.
Israeli startup offering browser integration, document summarisation, and real-time writing assistance. Strong focus on readability and tone adjustment alongside condensing content.
Specialises in transcribing meetings, interviews, and lectures with AI-generated summaries and action items. Supports live transcription and recording uploads.
American SaaS company known for grammar checking, now offering AI-powered summarisation alongside tone detection and plagiarism checking in premium plans.
US-based tool excelling at paraphrasing and rewriting. Offers summariser mode for documents, with style modes (formal, creative, fluent) and co-writing features.
Microsoft's enterprise AI offering provides summarisation within Word, Teams, and Outlook. Trained on GPT-4 and integrated with enterprise security and compliance frameworks.
Notion's add-on feature enables summarisation, writing, and editing within the Notion workspace. Best for teams already using Notion for knowledge management.
Enterprise copywriting and content platform offering summarisation alongside long-form content generation. Trains on brand voice and templates for consistency.
Lightweight service focusing on quick text summarisation with API access and browser extensions. Minimal learning curve, designed for speed and simplicity.
Claude excels here, with a 200,000 token context window supporting documents up to 150,000+ words. For shorter documents with frequent iterative refinement, ChatGPT Plus is also strong. QuillBot and Notion AI work best within their respective ecosystems.
Otter.ai specialises in meeting transcription and automatic summarisation, with live integration into Zoom, Teams, and Google Meet. It automatically identifies speakers and timestamps key discussion points, making it ideal for professionals managing multiple meetings.
Smmry and QuillBot both offer free tiers with core summarisation features. Wordtune starts at £9.99/month with strong browser integration, and Otter.ai has a free plan supporting three hours monthly of transcription and summarisation.
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