Alternatives to Ltp

CLTK brings LLM-powered part-of-speech tagging and dependency parsing to 105 pre-modern languages via one pip install.

Open-source deep research agent that reads sources in parallel and writes cited reports you self-host

Open-source AI co-scientist that runs scientific research workflows: literature search, Python code, and experiments in one workspace.

Search and download a free corpus of 81,735 modern Chinese poems by 3,489 poets — open-access Chinese poetry data.

Fojin merges 613+ digitized Buddhist canon sources across Pali, Chinese and Tibetan with AI Q&A that cites the exact passage.

Multi-agent research that turns a question into a sourced deck, Excel model, or app

LitSource turns a biomedical claim into PubMed papers and checks your references against real scholarly records.

AI semantic search across 6M+ U.S. newspaper stories, 1730s–1960s, with cited answers and a direct AI connection.

Metaso AI delivers cited, synthesized answers for Chinese-language search and research — not link lists.

OpenRead is an AI research platform combining paper search, cited Q&A, cross-paper comparison, notes, and writing help in one browser workspace.

AI fact-checking that verifies text and YouTube videos claim by claim against trusted sources

AI-assisted PubMed search: type a plain-language question, chat with the open-access literature, export a citeable PDF report — free, no

A browser canvas where you and your team place AI generation next to the source material it should use.

Chinese BERT with whole word masking and the MacBERT MLM-as-correction pre-training strategy, peer-reviewed in IEEE/ACM TASLP.

Free Chinese-language PyTorch edition of Dive into Deep Learning, with runnable Jupyter notebooks for every chapter.

SapienAI is an open, self-hostable agentic research workspace that unites AI agents with collaborative LaTeX, Typst and Markdown writing.

Scite.ai's Smart Citations show whether later research supported or contradicted a scientific claim, sentence by sentence.

Turn open-access research papers into audio podcasts and ask them questions by chat.

Academic summarizer that turns papers, PDFs and videos into interactive summary flashcards you can study and reuse.

Anara is an AI research assistant that searches 300M+ papers and grounds every answer in passage-level citations.

SciSpace is an AI research assistant for chatting with PDFs, running literature reviews, and extracting data from papers.

ResearchRabbit maps citation networks from a single seed paper, turning literature discovery into a visual rabbit hole over 320 million

Litmaps maps a research field by plotting seed papers on a date-versus-citation graph for literature review.

An enterprise knowledge layer that controls what an AI model reads and records how it answered, built for regulated R&D teams.

AI academic search engine that answers research questions with cited peer-reviewed papers

Otio is a persistent AI research workspace that keeps hundreds of PDFs, videos and podcasts searchable with page-level citations.

ResearchCollab.ai turns a research question into a fully cited literature review draft — Topic Map to PRISMA in one workspace.

AI research assistant that searches 138M+ papers and 545K clinical trials and builds cited reports, tables and systematic reviews

K-Dense BYOK runs 326 scientific workflows as a free desktop AI co-scientist on the model keys you already own.

An ontology layer between your enterprise data and frontier LLMs, starting with a biomedical knowledge graph.