Best Natural Language Processing Software

Compare the Top Natural Language Processing Software as of November 2025

What is Natural Language Processing Software?

Natural language processing (NLP) software analyzes both written and spoken human languages and interprets them for translation, deep learning and automation purposes. Natural language processing software may also include natural language understanding (NLU) capabilities. Compare and read user reviews of the best Natural Language Processing software currently available using the table below. This list is updated regularly.

  • 1
    Cogito

    Cogito

    Cogito Tech LLC

    Cogito Tech is a leading AI data solutions provider specializing in data labeling and annotation services. We deliver high-quality data for applications across computer vision, natural language processing (NLP), and content services. Our expertise extends to fine-tuning large language models (LLMs) through techniques like Reinforcement Learning from Human Feedback (RLHF), enabling rapid deployment and customization to meet business objectives. The company is headquartered in the United States and was featured in The Financial Times’ FT ranking: The Americas’ Fastest-Growing Companies 2025 and Everest Group’s report Data Annotation and Labeling (DAL) Solutions for AI/ML PEAK Matrix® Assessment 2024 Services offered by Cogito: • Image Annotation Service • AI-assisted Data Labeling Service • Medical Image Annotation • NLP & Audio Annotation Service • ADAS Annotation Services • Healthcare Training Data for AI • Audio & Video Transcription Services
    Starting Price: $25/Hour
  • 2
    Clarifai

    Clarifai

    Clarifai

    Clarifai is a leading AI platform for modeling image, video, text and audio data at scale. Our platform combines computer vision, natural language processing and audio recognition as building blocks for developing better, faster and stronger AI. We help our customers create innovative solutions for visual search, content moderation, aerial surveillance, visual inspection, intelligent document analysis, and more. The platform comes with the broadest repository of pre-trained, out-of-the-box AI models built with millions of inputs and context. Our models give you a head start; extending your own custom AI models. Clarifai Community builds upon this and offers 1000s of pre-trained models and workflows from Clarifai and other leading AI builders. Users can build and share models with other community members. Founded in 2013 by Matt Zeiler, Ph.D., Clarifai has been recognized by leading analysts, IDC, Forrester and Gartner, as a leading computer vision AI platform. Visit clarifai.com
    Starting Price: $0
  • 3
    Tisane

    Tisane

    Tisane Labs

    Tisane is NLU API with a focus on abusive content and law enforcement needs. Tisane detects: * hate speech * cyberbullying * criminal activity * sexual advances * attempts to establish external contact and more. Tisane classifies the actual issue, and pinpoints the offending text fragment; optionally, explanation can be supplied for a sanity check or audit purposes. Tisane supports 30 languages, even if the text contains slang and obfuscation.
  • 4
    Blox.ai

    Blox.ai

    Blox.ai

    Business data is usually present in different formats, across sources. A lot of business data is unstructured and semi-structured. IDP (Intelligent Document Processing) leverages AI, along with programmable automation (such as repetitive tasks), to convert data into usable, structured formats, and for consumption by downstream systems.Using Natural Language Processing (NLP), Computer Vision (CV), Optical Character Recognition (OCR) and machine learning tools, Blox.ai identifies, labels and extracts relevant data from any type of document. The AI then maps this extracted information into a structured format while configuring a model which can be applied to all similar document types. The Blox.ai stack is set up to reconcile the data based on business requirements and to push the output to downstream systems automatically.
    Starting Price: $650
  • 5
    Perspective API

    Perspective API

    Perspective

    Toxicity online poses a serious challenge for platforms and publishers. Online abuse and harassment silence important voices in conversation, forcing already marginalized people offline. Publishers, platforms, and individuals can use Perspective to power a variety of different use cases, in comment sections, forums, or any text-based conversations. Developers integrate and customize Perspective for many different audiences. Moderators use Perspective to quickly prioritize and review comments that have been reported. Perspective can give feedback to commenters who post toxic comments. Developers create tools so readers can control which comments they see, like hiding comments. Perspective has been shown to increase engagement by helping platforms and publishers create safe environments for conversation, and by helping individuals make healthier contributions online.
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