The top picks are ChatGPT Plus (best for general-purpose summarisation with conversational flexibility), Claude (ideal for nuanced, long-form document analysis), and Wordtune (perfect for quick article summaries with paraphrasing). Each suits different workflows and budgets.
RANKENTRYSCORETRENDFROM
1ChatGPT PlusProcesses uploads up to 100 MB and handles documents in multiple formats natively95.0NEW£15/month 2ClaudeHandles 200,000 token context window, equivalent to 150,000+ words in a single conversation92.7NEW£15/month 3WordtuneIntegrates directly into Gmail, Google Docs, and major writing platforms90.3NEW£9.99/month 4Otter.aiAutomatically identifies speakers and generates timestamped summaries of key discussion points88.0NEWFree (limited); £8.33/month Pro 5GrammarlyProvides real-time writing suggestions and readability scoring alongside summarisation85.7NEWFree; £11.66/month Premium 6QuillBotOffers seven writing modes and tone adjustments beyond standard summarisation83.3NEWFree; £9.99/month Premium 7Microsoft CopilotIntegrates with enterprise security, managing access controls and data residency requirements81.0NEW£20/month (Microsoft 365 add-on) 8Notion AIOperates within Notion's collaborative database and page environment78.7NEW£8/month add-on 9JasperLearns custom brand voice and terminology for consistent summarisation tone76.3NEW£39/month 10SmmryOffers API access and custom summary length specification in words or sentences74.0NEWFree; Premium available The ranking, in detail
01
Conversational AI summariser with broad knowledge and multi-modal support
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.
From £15/monthBest for General-purpose summarisation, research, and content creators needing flexibility
95.0
02
Long-context AI summariser excelling at complex document 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.
From £15/monthBest for Legal documents, academic research, and extensive content consolidation
92.7
03
AI-powered paraphrasing and summarisation for writers and marketers
Israeli startup offering browser integration, document summarisation, and real-time writing assistance. Strong focus on readability and tone adjustment alongside condensing content.
From £9.99/monthBest for Content writers, marketers, and anyone needing quick summaries with tone control
90.3
04
Conversation and meeting transcription with automatic summarisation
Specialises in transcribing meetings, interviews, and lectures with AI-generated summaries and action items. Supports live transcription and recording uploads.
From Free (limited); £8.33/month ProBest for Remote teams, interviewers, and professionals managing multiple meetings
88.0
05
Writing assistant with integrated summarisation and clarity tools
American SaaS company known for grammar checking, now offering AI-powered summarisation alongside tone detection and plagiarism checking in premium plans.
From Free; £11.66/month PremiumBest for Students, professionals, and businesses standardising writing quality
85.7
06
Paraphrasing engine with document summarisation and plagiarism detection
US-based tool excelling at paraphrasing and rewriting. Offers summariser mode for documents, with style modes (formal, creative, fluent) and co-writing features.
From Free; £9.99/month PremiumBest for Students, academics, and writers needing paraphrasing alongside summary tools
83.3
07
Integrated AI assistant across Microsoft 365 with document summarisation
Microsoft's enterprise AI offering provides summarisation within Word, Teams, and Outlook. Trained on GPT-4 and integrated with enterprise security and compliance frameworks.
From £20/month (Microsoft 365 add-on)Best for Organisations already using Microsoft 365, especially for internal documents
81.0
08
Document workspace with built-in AI summarisation and generation
Notion's add-on feature enables summarisation, writing, and editing within the Notion workspace. Best for teams already using Notion for knowledge management.
From £8/month add-onBest for Teams using Notion for project management and documentation
78.7
09
Content creation platform with document summarisation and brand voice training
Enterprise copywriting and content platform offering summarisation alongside long-form content generation. Trains on brand voice and templates for consistency.
From £39/monthBest for Marketing teams and agencies needing summarisation alongside content generation
76.3
10
Fast, simple web page and document summarisation tool
Lightweight service focusing on quick text summarisation with API access and browser extensions. Minimal learning curve, designed for speed and simplicity.
From Free; Premium availableBest for Students, researchers, and anyone needing rapid summaries of web content
74.0
Frequently asked questions
What is the best AI text summariser for handling very long documents?
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.
Which summariser is best for meetings and spoken content?
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.
What are the most affordable options for students and individuals?
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.