SciSpace alternatives

Closest first: ordered by how many of SciSpace's tasks each tool shares, then by popularity.

1. 1P

   PerplexityFree tier

   An AI search assistant that answers questions with cited web sources and supports multi-step deep research reports.

   Also does:Searching the web with AIResearching a topicSummarizing long text

   Web · iOS · Android · Browser extension

2. 2

   Microsoft CopilotVerifiedFree tier · from $9.99/mo

   An AI assistant for everyday and work tasks, with chat, search, drafting and image creation.

   Also does:Searching the web with AISummarizing long textResearching a topic

   Web · Windows · Mac · iOS · Android

3. 3N

   NotebookLMFree tier · from $9.99/mo

   Google's AI notebook that grounds every answer in your uploaded documents, PDFs and audio files with source citations.

   Also does:Researching a topicSummarizing long textChatting with PDFs

   Web · iOS · Android

4. 4S

   SciteFree trial

   An academic research platform that classifies citations as supporting or contrasting, showing the evidential weight behind published claims.

   Also does:Researching a topicSearching the web with AIChatting with PDFs

   Web · Browser extension

5. 5C

   ClaudeFree tier · from $20/mo

   Anthropic's AI assistant with a long context window, nuanced reasoning and strong performance on writing and analysis.

   Also does:Researching a topicChatting with PDFs

   Web · iOS · Android · API

6. 6K

   KimiFree tier

   Long-context assistant that reads huge documents.

   Also does:Chatting with PDFsResearching a topic

7. 7

   ChatPDFVerifiedFree tier

   Upload a document, ask questions in plain language, and get answers with page citations.

   Also does:Chatting with PDFsSummarizing long text

   Web

8. 8C

   ConsensusFree tier

   An AI academic search engine that surfaces the degree of scientific agreement on a question from peer-reviewed papers.

   Also does:Researching a topicSearching the web with AI

   Web · Browser extension

9. 9

   ElicitVerifiedFree tier · from $11/mo

   AI research assistant that finds academic papers and drafts cited reports for researchers.

   Also does:Summarizing long textResearching a topic

   Web

10. 10L

    LinerFree tier

    AI search built for students and researchers.

    Also does:Searching the web with AIResearching a topic

11. 11

    ShortwaveVerifiedFree trial · from $30/mo

    An AI email assistant for teams and professionals that organizes inboxes, drafts replies, and schedules meetings.

    Also does:Summarizing long textSearching the web with AI

    iOS · Android · Mac · Windows

12. 12

    HumataVerifiedFree tier · from $9.99/mo

    Lets researchers, students, and teams ask questions across their PDFs and get answers with citations.

    Also does:Chatting with PDFsSummarizing long text

    Web

13. 13C

    ChatGPTFree tier · from $8/mo

    OpenAI's AI assistant for questions, writing, coding and research, with a free tier and paid plans for more capable models.

    Also does:Researching a topic

    Web · iOS · Android · API

14. 14G

    Google GeminiFree tier · from $9.99/mo

    Google's multimodal AI assistant with live web search and deep integration with Gmail, Docs and Drive.

    Also does:Researching a topic

    Web · iOS · Android

15. 15Q

    QuillBotFree tier

    Paraphrasing and writing tool that rewrites text in several modes with grammar checking built in.

    Also does:Summarizing long text

    Web · Browser extension