Best Natural Language Understanding (NLU) Software - Page 2

How Many Natural Language Understanding (NLU) Software Products Does G2 Track?

Total Products under this Category: 83

Category Stats (Sep 2026)

  • Average Rating: 4.4/5 (↓0.02 vs Aug 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Microsoft Copilot (+2.64%) - Among all products in this category, Microsoft Copilot recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank Natural Language Understanding (NLU) Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 3,000+ Authentic Reviews
  • 83+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Natural Language Understanding (NLU) Software

G2 Grid® for Natural Language Understanding (NLU) Software plotting products by satisfaction and market presence

Highlighted products: Claude, Google Cloud Translation API, Google Cloud Natural Language API, Google Cloud AutoML Natural Language, Microsoft Copilot, Amazon Comprehend, Deepgram, and Azure AI Language.

Underlying data: [Grid® JSON](https://www.g2.com/categories/natural-language-understanding-nlu/grids.json?focus%5B%5D=claude-2025-12-11&focus%5B%5D=google-cloud-translation-api&focus%5B%5D=google-cloud-natural-language-api&focus%5B%5D=google-cloud-automl-natural-language&focus%5B%5D=microsoft-copilot-2026-08-27&focus%5B%5D=amazon-comprehend&focus%5B%5D=deepgram&focus%5B%5D=azure-ai-language)

Tungsten TotalAgility

The Industry’s Only Low‑Code, Integrated, End‑to‑End Intelligent Automation Solution Tungsten TotalAgility is a powerful all-in-one solution that combines document and process intelligence using the industry's leading capture, OCR, and process orchestration technology. Harness the Tungsten Intelligent Automation Platform, Tungsten TotalAgility, to go beyond AI-powered RPA by unlocking document intelligence, connecting disparate systems, and orchestrating human and digital workers to execute and automate workflows across your high-value business processes. • Document Intelligence: Apply cognitive capture and artificial intelligence to unstructured data to  automate and extract information and unlock data insights. • Process Orchestration: Orchestrate digital workflows in collaboration with users, systems , and data. • Connected Systems: Bring together your critical business systems— enterprise applications, legacy systems, mobile, chatbots, and more—across internal and external business processes. :: Successful Organizations Rely on TotalAgility :: Tungsten TotalAgility® streamlines building and deploying intelligent process automation so you can expand human and digital workforce capacity. Receive, execute, route, and report on workflow tasks from a single platform. Why customers choose TotalAgility? • Industry-leading document intelligence: Our intelligent document processing technology processes documents and data with the highest accuracy and speed. • Low-code automation: Powerful tools to build, deploy and accelerate enterprise automation. • End-to-end business process handling: A central intelligent automation platform to handle dynamic tasks, trigger automated rules and deploy on-demand workforce capacity. • Mobile engagement: Deliver enhanced customer experiences across any channel and any device.

Average Rating: 4.3/5.0

Total Reviews: 42

How Do G2 Users Rate Tungsten TotalAgility?

  • Summarization: 10.0/10 (Category avg: 9.0/10)
  • Language Detection: 10.0/10 (Category avg: 8.8/10)
  • Part of Speech Tagging: 10.0/10 (Category avg: 8.7/10)
  • Quality of Support: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind Tungsten TotalAgility?

  • Seller: Tungsten Automation
  • Year Founded: 1985
  • HQ Location: Denver, CO
  • Twitter: @TungstenAI
    6,445 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,599 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Banking, Information Technology and Services
  • Company Size: 53% Large, 31% Medium

What Are Recent G2 Reviews of Tungsten TotalAgility?

What Are G2 Users Discussing About Tungsten TotalAgility?

openNLP

Apache OpenNLP library is a machine learning based toolkit for the processing of natural language text that supports the common NLP tasks, such as tokenization, sentence segmentation, part-of-speech tagging, named entity extraction, chunking, parsing, and coreference resolution these tasks are usually required to build more advanced text processing services and includes maximum entropy and perceptron based machine learning.

Average Rating: 4.0/5.0

Total Reviews: 11

How Do G2 Users Rate openNLP?

  • Quality of Support: 7.0/10 (Category avg: 8.6/10)

Who Is the Company Behind openNLP?

Who Uses This Product?

  • Company Size: 64% Small, 18% Large

What Are Recent G2 Reviews of openNLP?

What Are G2 Users Discussing About openNLP?

NLTK

NLTK is a platform for building Python programs to work with human language data that provides interfaces to corpora and lexical resources such as WordNet, along with a suite of text processing libraries for classification, tokenization, stemming, tagging, parsing, and semantic reasoning, wrappers for industrial-strength NLP libraries, and an active discussion forum.

Average Rating: 4.4/5.0

Total Reviews: 46

How Do G2 Users Rate NLTK?

  • Summarization: 7.4/10 (Category avg: 9.0/10)
  • Language Detection: 7.0/10 (Category avg: 8.8/10)
  • Part of Speech Tagging: 7.4/10 (Category avg: 8.7/10)
  • Quality of Support: 8.2/10 (Category avg: 8.6/10)

Who Is the Company Behind NLTK?

  • Seller: NLTK Project
  • HQ Location: N/A
  • Twitter: @NLTK_org
    2,305 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Data Scientist, Software Engineer
  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 52% Small, 29% Large

What Are Recent G2 Reviews of NLTK?

What Are G2 Users Discussing About NLTK?

Marvin AI

Marvin processes structured data for software development, enhancing your software development process.

Average Rating: 4.3/5.0

Total Reviews: 12

How Do G2 Users Rate Marvin AI?

  • Summarization: 7.5/10 (Category avg: 9.0/10)
  • Language Detection: 8.3/10 (Category avg: 8.8/10)
  • Part of Speech Tagging: 6.7/10 (Category avg: 8.7/10)
  • Quality of Support: 8.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Marvin AI?

Who Uses This Product?

  • Company Size: 50% Small, 33% Medium

What Do G2 Reviewers Say About Marvin AI?

AI-generated summary from verified user reviews

Pros
  • Users praise the ease of use of Marvin AI, appreciating its simple integration and user-friendly experience.
  • Users appreciate the simplicity and versatility of Marvin AI, enabling quick app development and easy integration of AI features.
  • Users appreciate the lightweight design and scalability of Marvin AI, enhancing their decision-making experience with ease.
  • Users value the easy integrations with GitHub, making Marvin AI simple to implement and scalable.
  • Users praise Marvin AI for its efficiency in app development, delivering fast and optimized results effortlessly.
Cons
  • Users note a lack of community support and the need for substantial data, which limits Marvin AI's effectiveness.
  • Users note limited community support for Marvin AI compared to other frameworks, hindering assistance and collaboration.
  • Users note limited community support and challenges with data requirements, impacting Marvin AI's effectiveness for smaller projects.
  • Users find the complex implementation of Marvin AI frustrating due to repetitive installation processes through Git.
  • Users find the complex setup of Marvin AI frustrating, often needing to reinstall multiple times through Git.

What Are Recent G2 Reviews of Marvin AI?

GlobalLink

GlobalLink is a translation management platform offered by TransPerfect, the world’s largest provider of localization services. Designed to be able to scale based on the needs of a variety of use cases and industry verticals, GlobalLink Enterprise is currently deployed by over 6,000 organizations around the globe to streamline content creation, localization and delivery. GlobalLink offers 65+ connectors to integrate into a variety of content repositories, including CMS, CCMS, eCommerce, CRM, digital marketing and databases, and also offers a robust set of API’s for bespoke integration requirements. Key features of GlobalLink include: Enterprise Translation Automation Global Supply Chain Management Neural MT/AI integration Generative AI workflows Integrated Translation Memory & Terminology Management Cloud and Desktop Based CAT Environments Cloud-based Content Validation with In-Context Preview Capabilities Advanced, Secure File Sharing Support for Media-Based Assets Support for Mobile Application Localization Support for Continuous Localization Processes Synchronous/asynchronous third-party platform integration Accessibility Certification Web-proxy and JS Injection Capabilities Advanced Business Analytics Customized Dashboard Views Widest Portfolio of Connectors in the Industry Broad REST APIs

Average Rating: 4.5/5.0

Total Reviews: 190

How Do G2 Users Rate GlobalLink?

  • Quality of Support: 9.1/10 (Category avg: 8.6/10)

Who Is the Company Behind GlobalLink?

  • Seller: TransPerfect
  • Company Website:
  • Year Founded: 1992
  • HQ Location: New York
  • Twitter: @DigitalReef
    570 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    18,394 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Financial Services, Pharmaceuticals
  • Company Size: 56% Large, 28% Medium

What Do G2 Reviewers Say About GlobalLink?

AI-generated summary from verified user reviews

Pros
  • Users highlight the ease of use of GlobalLink, appreciating its centralized and automated features for efficient translations.
  • Users appreciate the integrated connectors with popular platforms, drastically reducing manual work and improving translation quality.
  • Users value the seamless integrations of GlobalLink, enhancing workflow efficiency and improving translation quality across platforms.
  • Users appreciate the flexibility and straightforward functionalities of GlobalLink, making complex configurations easy to manage.
  • Users highlight the exceptional customer support of GlobalLink, noting responsiveness and helpfulness in project localization.
Cons
  • Users express concerns about pricing issues with GlobalLink, citing skyrocketing costs and unclear payment structures.
  • Users find GlobalLink expensive, with high costs that make it unaffordable despite its impressive functionality.
  • Users experience slow performance with GlobalLink, particularly during large file uploads and heavy media content handling.
  • Users struggle with navigation and UX issues in GlobalLink, complicating their overall experience with the app.
  • Users find the complex setup of GlobalLink to be challenging due to its long implementation and navigation difficulties.

What Are Recent G2 Reviews of GlobalLink?

What Are G2 Users Discussing About GlobalLink?

Abacus.ai

Abacus.ai is an AI Super Assistant and Generative AI platform designed to help individuals and businesses build, automate, and scale intelligent applications with ease. The platform enables users to create AI-powered workflows, deploy autonomous AI agents, and build full-stack applications using natural language. From app development and data analysis to content generation and automation, Abacus.ai brings multiple AI capabilities into a single unified environment. With tools like Deep Agent, users can turn simple prompts into fully functional applications complete with backend, database, and user interfaces. This significantly reduces development time and eliminates the need for complex technical setup. Abacus.ai focuses on productivity, automation, and real-world use cases, making it accessible for developers, teams, and non-technical users alike. By combining Generative AI, AI agents, and workflow automation, it empowers users to move from idea to execution faster than ever before.

Average Rating: 4.3/5.0

Total Reviews: 13

How Do G2 Users Rate Abacus.ai?

  • Summarization: 10.0/10 (Category avg: 9.0/10)
  • Part of Speech Tagging: 10.0/10 (Category avg: 8.7/10)
  • Quality of Support: 8.8/10 (Category avg: 8.6/10)

Who Is the Company Behind Abacus.ai?

  • Seller: Abacus.ai
  • HQ Location: United States
  • Twitter: @abacusai
    99,644 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    994 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software
  • Company Size: 57% Medium, 36% Small

What Do G2 Reviewers Say About Abacus.ai?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Abacus.ai, as it simplifies model-building for those less experienced in AI.
  • Users value the affordability of Abacus.ai, as it combines top AI tools at a competitive price.
  • Users find the ease of use of Abacus.ai invaluable, allowing even non-experts to leverage powerful machine learning capabilities.
  • Users appreciate the automation capabilities of Abacus.ai, simplifying complex tasks like forecasting for non-experts.
  • Users value the easy integrations of Abacus.ai, connecting multiple advanced AI tools affordably in one platform.
Cons
  • The expensive pricing of Abacus.ai may deter small businesses and individual users from accessing its features.
  • Users find the lack of plugin access in Abacus.ai limiting compared to ChatGPT, hindering functionality.
  • Users feel the pricing and customization limitations of Abacus.ai may not suit advanced users or smaller budgets.
  • Users find the limited customization options of Abacus.ai challenging, especially for advanced needs and smaller budgets.
  • Users find the limited features of Abacus.ai restrictive compared to offerings like ChatGPT with plugins.

What Are Recent G2 Reviews of Abacus.ai?

What Are G2 Users Discussing About Abacus.ai?

NewSci AI-Readines Services

All the talk about qualitative data analysis is for naught if you can’t understand language as it is spoken. That is what Natural Language Processing (NLP) is all about. NewSci NLP brings this power to organization’s seeking to extract insights from their unstructured data. Just as you know what a person is saying when you hear, “I’m hungry, I want an apple” vs. “I really want an Apple™ instead of a PC,” so now can a computer. NewSci NLP enables a computer to understand the people, places, and things important to your organization. This, in turn, allows your unstructured data to be analyzed just like your structured data. With NewSci NLP your organization will enjoy qualitative analysis (the Why behind the numbers) alongside your quantitative analytics. Uses models customized to your organization; the domain in which you operate; the quality of your recordings; and even local and regional dialects to deliver the highest level of transcription accuracy. Captures your organization’s domain and unique characteristics to enable deep Natural Language Understanding analysis and Natural Language Generation. Your NewSci Ontology will be your Rosetta Stone for unlocking the value hidden in your unstructured data. The NewSci Insight Reservoir™ brings governance and insight to the data lake. You enjoy all the benefits of a state-of-the-art Big Data lake including access to hundreds of data connectors for ingesting information; transformation tools for quality assurance and data enhancement; and cataloging of your data down to the field level while at the same time having unmatched data governance capabilities: Unlike a passive data lake, the NewSci Insight Reservoir™ is a powerful cognitive computing platform where you can perform machine learning; deep learning; and natural language processing on all your structured and unstructured data. NewSci NLP connects directly to your NewSci Insight Reservoir™ to extract meaning from your text and make it available for analysis. Machine and Deep Learning algorithms can be created, and perfected, as data enters the Insight Reservoir™, increasing the value in real-time. And all of the insights can easily be made available for visualization tools including Tableau®, Qlik®, and MS Power- BI®. Jump out of the data lake and get your organization into the NewSci Insight Reservoir™

Average Rating: 4.3/5.0

Total Reviews: 2

How Do G2 Users Rate NewSci AI-Readines Services?

  • Summarization: 10.0/10 (Category avg: 9.0/10)
  • Language Detection: 10.0/10 (Category avg: 8.8/10)
  • Part of Speech Tagging: 10.0/10 (Category avg: 8.7/10)
  • Quality of Support: 7.5/10 (Category avg: 8.6/10)

Who Is the Company Behind NewSci AI-Readines Services?

  • Seller: NewSci
  • Year Founded: 2013
  • HQ Location: Tampa, US
  • Twitter: @New_Sci
    68 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of NewSci AI-Readines Services?

What Are G2 Users Discussing About NewSci AI-Readines Services?

NLP Studio

SparkCognition has developed a solution that automates workflows of unstructured data within organizations so humans can focus on high value business decisions. DeepNLP uses advanced machine learning techniques to automate the retrieval of information, classification of documents, and content analytics.

Average Rating: 3.8/5.0

Total Reviews: 2

How Do G2 Users Rate NLP Studio?

  • Summarization: 8.3/10 (Category avg: 9.0/10)
  • Language Detection: 8.3/10 (Category avg: 8.8/10)
  • Part of Speech Tagging: 8.3/10 (Category avg: 8.7/10)
  • Quality of Support: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind NLP Studio?

  • Seller: Avathon
  • Year Founded: 2013
  • HQ Location: Austin, Texas
  • LinkedIn® Page: www.linkedin.com
    258 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Large, 50% Small

What Are Recent G2 Reviews of NLP Studio?

SQL Ease

SQL Ease transforms natural language input into SQL queries effortlessly, making database management more accessible.

Average Rating: 3.9/5.0

Total Reviews: 4

How Do G2 Users Rate SQL Ease?

  • Summarization: 9.2/10 (Category avg: 9.0/10)
  • Language Detection: 9.2/10 (Category avg: 8.8/10)
  • Part of Speech Tagging: 8.3/10 (Category avg: 8.7/10)
  • Quality of Support: 5.8/10 (Category avg: 8.6/10)

Who Is the Company Behind SQL Ease?

Who Uses This Product?

  • Company Size: 75% Small, 25% Medium

What Do G2 Reviewers Say About SQL Ease?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of SQL Ease, finding it intuitive and time-saving for database management.
  • Users love how SQL Ease offers effective time management, simplifying SQL queries and saving them significant time overall.
  • Users value the time-saving features of SQL Ease, which simplify SQL queries and enhance database management efficiency.
  • Users love the intuitive and user-friendly interface of SQL Ease, making database management effortless and efficient.
  • Users express frustration due to the lack of customer support from SQL Ease, impacting their overall experience.
Cons
  • Users experience slow performance with SQL Ease, as query generation often takes too long and yields no output.
  • Users find accuracy issues prevalent in SQL Ease, struggling with complex queries and validation against live data.
  • Users find the complex setup challenging, especially for intricate SQL logics, requiring manual adjustments and validation issues.
  • Users find SQL Ease adequate for simple queries, but it needs significant improvement for handling complex logic and validation.
  • Users find insufficient training for complex queries a challenge, often requiring manual adjustments for effective use.

What Are Recent G2 Reviews of SQL Ease?

Tinq.ai

Tinq.ai is a simple, yet powerful natural language processing tool. It helps you easily implement text analysis within your projects.

Average Rating: 4.5/5.0

Total Reviews: 2

How Do G2 Users Rate Tinq.ai?

  • Summarization: 9.2/10 (Category avg: 9.0/10)
  • Language Detection: 8.3/10 (Category avg: 8.8/10)
  • Part of Speech Tagging: 8.3/10 (Category avg: 8.7/10)
  • Quality of Support: 9.2/10 (Category avg: 8.6/10)

Who Is the Company Behind Tinq.ai?

Who Uses This Product?

  • Company Size: 50% Small, 50% Large

What Are Recent G2 Reviews of Tinq.ai?

Convai

Enable your characters with human-like conversation capabilities in games and virtual world applications.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Convai?

  • Summarization: 10.0/10 (Category avg: 9.0/10)
  • Language Detection: 10.0/10 (Category avg: 8.8/10)
  • Part of Speech Tagging: 10.0/10 (Category avg: 8.7/10)
  • Quality of Support: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Convai?

Who Uses This Product?

  • Company Size: 100% Medium

What Do G2 Reviewers Say About Convai?

AI-generated summary from verified user reviews

Pros
  • Users are impressed with the engaging chatbot communication, enhancing character interaction for education and game development.
  • Users value the customization features of Convai, enabling unique character creation and seamless integration into projects.
  • Users find the ease of setup in Unity for Convai exceptional, enhancing their character creation experience.

What Are Recent G2 Reviews of Convai?

Expert.ai

Expert.ai Studio is a fully integrated, low-code development environment for building and deploying custom AI-based text models to address any linguistic challenge. Our solution helps organizations and developers to create advanced and unique solutions to extend the scope of intelligent process automation and make knowledge discovery more effective. Expert.ai Studio applies natural language understanding (NLU) capabilities and a fine-grained text processing configuration to achieve precise comprehension of your content. As a result, you gain complete control over your data so you can use it more efficiently and at scale in support of your business operations.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind Expert.ai?

  • Seller: Expert.ai
  • HQ Location: Modena, IT
  • LinkedIn® Page: www.linkedin.com
    266 employees on LinkedIn®
  • Ownership: BIT:EXSY
  • Total Revenue (USD mm): $31

Who Uses This Product?

  • Company Size: 100% Large

What Are Recent G2 Reviews of Expert.ai?

Explainpaper

Explainpaper is an AI-powered platform designed to help researchers and students read and understand complex research papers more efficiently. By allowing users to upload academic papers, highlight challenging sections, and receive instant, simplified explanations, Explainpaper aims to make dense scientific literature more accessible. This tool is particularly beneficial for those looking to grasp intricate concepts without getting overwhelmed by technical jargon. Key Features and Functionality: - Highlight Explanations: Users can highlight confusing text within a research paper to receive immediate, straightforward explanations. - Follow-up Questions: The platform enables users to ask additional questions about the content, facilitating deeper understanding. - AI-Powered Summaries: Advanced AI models generate concise summaries of entire papers, providing a quick overview of the main points. - Save Highlights and Explanations: Users can save their highlights and the corresponding explanations for future reference. - Team Collaboration: For organizations, Explainpaper offers team management features, priority support, and volume discounts. Primary Value and Problem Solved: Explainpaper addresses the challenge of deciphering complex academic language, which often hinders efficient research. By simplifying dense sections and providing clear explanations, it reduces the time and effort required to comprehend research papers. This empowers users to focus on the core ideas and advancements in their field without being bogged down by intricate terminology. Ultimately, Explainpaper enhances the research experience, making it more productive and less intimidating.

Average Rating: 4.0/5.0

Total Reviews: 1

How Do G2 Users Rate Explainpaper?

  • Summarization: 8.3/10 (Category avg: 9.0/10)
  • Language Detection: 8.3/10 (Category avg: 8.8/10)
  • Quality of Support: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind Explainpaper?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Explainpaper?

NaturalText

Natural Text uses Machine Learning algorithms to identify similar phrases/lines between patent descriptions.

Average Rating: 4.5/5.0

Total Reviews: 2

How Do G2 Users Rate NaturalText?

  • Summarization: 10.0/10 (Category avg: 9.0/10)
  • Language Detection: 10.0/10 (Category avg: 8.8/10)
  • Part of Speech Tagging: 10.0/10 (Category avg: 8.7/10)

Who Is the Company Behind NaturalText?

  • Seller: NaturalText
  • Year Founded: 2015
  • HQ Location: Ellicott City, US
  • Twitter: @naturaltext
    39 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    4 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of NaturalText?

Plasticity

We're making better natural language understandingopen and accessible through simple APIs.

Average Rating: 4.0/5.0

Total Reviews: 1

Who Is the Company Behind Plasticity?

Who Uses This Product?

  • Company Size: 200% Small

What Are Recent G2 Reviews of Plasticity?

Bijou Barry
BB
Researched and written by Bijou Barry
Updated April 9, 2026