Stanford SPIED Alternatives: Top 10 Natural Language Understanding (NLU) Software in 2025

We make a suite of AI developer tools that emphasize usability, performance and data privacy. We’re proud to be part of the best-in-class Python data science ecosystem. Most of our software is open-source, and the components that aren’t are just as privacy-conscious and developer…

Microsoft Knowledge Exploration Service is a service that offers a fast and effective way to add interactive search and refinement to applications.

Julia package for text analysis. Contribute to JuliaText/TextAnalysis.jl development by creating an account on GitHub.

Enhance your apps with the Spell Check API from Bing. This API helps you create spell check queries and catch spelling mistakes as users are typing.

Tap into the wealth of academic content in the Microsoft Academic Graph using the Academic Knowledge API:

Introducing IRIS.AI, a comprehensive platform for transforming research processing. This cutting-edge technology provides professionals with the tools to streamline their data systematizing and extraction for maximum efficiency. Whether customer is a researcher or an executive looking to stay ahead of the competition, IRIS.AI is sure to provide tangible benefits in day-to-day workflows. The platform's robust search function enables users to find exactly what they need in a fraction of the time it would take manually. In addition, its wide range of smart filters ensures that customers never presented with irrelevant results ever again. Its efficient reading list analysis tool ensures that never miss out on any vital information as to sift through countless documents - saves time spent review by up to 70%, enabling the customer to move onto new tasks quickly and effortlessly! Want even more value from the research? How about automatically generated summaries that let the customer to gain deeper insights into each document's content? And if that wasn't enough, we've also included an autonomous data extraction feature, allowing users to quickly transform vast amounts of raw data into organized intelligence within moments - saving hours otherwise spent on tedious tasks! IRIS.AI is designed for busy professionals who need to be up-to-date and informed all the time - enabling them to make sound business decisions. It provides them with visibility to information faster than ever before and helps them focus on the important stuff instead of wasting hours dealing with irrelevant data sources and tedious manual reviews. With IRIS AI, stay ahead of the competition and make smarter decisions using powerful insights gained quicker than ever before!

Microsoft Language Understanding Intelligent Service (LUIS) is a service that enable user to quickly deploy an HTTP endpoint. It will interpret sentences being send and interpret them.

IBM Watson Natural Language Classifier is a service that enables developers without a background in machine learning or statistical algorithms to create natural language interfaces.

DeepNLP uses advanced machine learning techniques to automate retrieval of information, classification of documents & unstructured data analytics.

IBM Watson Tone Analyzer is a service that uses linguistic analysis to detect three types of tones from text. Emotions identified include anger, fear, joy, sadness, and disgust.

Convai is the breakthrough technology for enabling characters in virtual worlds with human-like conversation capabilities. Convai allows characters to interact with users like never before, understanding natural language and offering automated responses. This level of communication opens up new pathways for experiences that are more expansive, believable and impactful than ever. Built on patented natural language processing technology, Convai helps developers build interactive virtual stories and experiences that are much more engaging and immersive! By blending together the power of AI technology with conversational agent development, Convai enables a heightened level of user interaction in virtual worlds by understanding both written and spoken language. The application is built on an easy to use interface specifically designed for professionals with third-person perspectives. Companies can use this innovative tool to develop virtual products ranging from training simulations to actual customer support scenarios - quickly and cost effectively. With Convai, customer can create the most compelling virtual conversations that will captivate customers audience like never before!

Azure Cognitive Services brings AI within reach of every developer through a family of APIs that don’t require machine-learning expertise.

Show users intelligent search suggestions with the Bing Autosuggest API. Test out the autocomplete API and search suggestion tool to see how it works.

Easily integrate real-time speech translation into your apps.

Cortical.io has embedded its Retina Engine in a powerful platform for semantic search, semantic classification and semantic filtering.

EpiAnalytics text analytics and machine-learning solutions enable companies to increase customer service efficiency and optimize the customer experience.

IBM Watson NLU is a service on the IBM Cloud that enables you to analyze text to extract metadata from content such as concepts, entities and sentiment

Azure Cognitive Services brings AI within reach of every developer through a family of APIs that don’t require machine-learning expertise.

Use our Text Analysis APIs to derive high-end information from your data and solve problems like building chatbots, social media analytics, process automation.

Sentiment analysis, stemming and lemmatization, part-of-speech tagging and chunking, phrase extraction and named entity recognition.