AI Data Analysis Tool Comparison 2026: Tableau, ChatGPT Data Analysis, Julius AI and 7 More (Pricing & Free Plans)

When choosing an AI data analysis tool, many people are unsure about pricing structures, the availability of a free plan, and Japanese support. Also, the right tool varies greatly depending on whether you want to use it easily like a spreadsheet or need an advanced enterprise-level analytics platform.

In this article, we compare 10 major tools, including Tableau AI and ChatGPT Advanced Data Analysis, based on data listed on AIpedia (as of November 2026). We outline each tool's pricing, free plan availability, Japanese support, and platforms, as well as specific strengths and weaknesses.

We also explain recommended tools that fit your goals and key points on how to choose. We have gathered all the information you need to know before implementation in one place, so please use it as a reference.

What Are AI Data Analysis Tools? What They Can Do and What to Know Before Choosing

AI data analysis tools are software that support data visualization and statistical processing through natural language commands or file uploads. For example, Tableau AI and Julius AI can automatically generate graphs and dashboards using drag-and-drop or text input alone. Additionally, ChatGPT Advanced Data Analysis executes Python code to perform detailed analysis, while Dataiku and DataRobot cover the entire process from building to operating machine learning models.

• Analysis via natural language: You can create graphs and summarize data by giving text instructions without needing specialized coding knowledge. Julius AI and Rows AI specialize in this usage style.
• Automatic construction of predictive models: DataRobot and Obviously AI automatically generate machine learning models just by uploading data, which can be applied to sales forecasting and demand forecasting.
• Creation of interactive dashboards: Tableau AI and Polymer create visualized dashboards from spreadsheet data, allowing teams to share and embed them.
• User behavior analysis: Contentsquare uses website or app heatmaps and session replays to let AI automatically extract insights for UX improvement.

When choosing a tool, first check the scope of what is available for free. Julius AI and Hex AI offer a free plan, but there may be limits on message counts or features. On the other hand, Dataiku and DataRobot are enterprise-oriented with undisclosed pricing, so you need to obtain specific quotes before implementation.

Also, whether Japanese support is available is an important point. Tableau AI and ChatGPT Advanced Data Analysis allow operation in Japanese, but Rows AI and Hex AI only support English, requiring language skills. Furthermore, while many tools are completed entirely on the web, Dataiku offers on-premises environments as an option.

Comparison of 10 Key Tools (Pricing, Japanese Support, Platforms)

Tool	AIpedia rating	Main plans	Japanese support	Platforms
Tableau AI	4.4	Tableau Viewer $15/user/month / Explorer $42/user/month / Creator $75/user/month	Supported	Web, Windows, macOS, iOS, and others
ChatGPT Advanced Data Analysis	4.4	Included in ChatGPT Plus $20/month	Supported (can issue instructions in Japanese)	Web, iOS, Android
Julius AI	4.3	Free plan (25 messages/month) / Essential $20/month / Pro $49/month (advanced analysis, unlimited)	Supported	Web
Rows AI	4	Free: limited free tier / Pro: $59/user/month / Enterprise (contact sales)	Not supported	Web
Hex AI	4.2	Free plan / Professional $26/user/month / Team $47/user/month	Not supported (English only)	Web
Dataiku	4.3	Free version (for individuals and learning) / Team, Business, Enterprise (contact sales)	Partially supported (has a Japanese subsidiary)	Web, on-premises, cloud
DataRobot	4.2	Contact sales (for enterprises) / Free trial available / DataRobot Community (free version for learning) available	Supported	Web, API
Obviously AI	4.1	Free trial / Starter $75/month / Professional $187/month	Partially supported (UI in English)	Web
Polymer	3.9	Free plan / Starter $10/month / Pro $25/month	Not supported (English only)	Web
Contentsquare	4.2	Contact sales (tiered pricing based on traffic volume)	Supported	Web, API

Ratings are out of 5 points by the AIpedia editorial team. Pricing and plans may change. Please check the official website of each tool for the latest information before signing a contract.

Features, Pricing, and Best Use Cases for 10 Tools

1. Tableau AI

Tableau AI is a suite of AI features integrated into Tableau, the BI tool under Salesforce. It supports data visualization and analysis, automatically discovering key insights. It also handles natural language queries, enabling data analysis without specialized knowledge such as SQL.

• Strengths: Tableau Pulse allows AI to detect anomalies and trend changes, proactively notifying you via Slack or email.
• Strengths: Simply ask questions in business terms, and the AI automatically creates visualizations (AIpedia data lists this as Einstein Copilot for Tableau; it was renamed to Tableau Agent in 2024). It also supports AI-driven data shaping in Tableau Prep and connections to hundreds of data sources, including Snowflake and BigQuery.
• Strengths: High expressiveness in dashboard creation via drag-and-drop, with support for geospatial data and complex charts.
• Things to note: The Creator license costs $75/user/month, which can be a significant cost burden for individual use or small teams.
• Things to note: The learning curve is somewhat steep, requiring time to master effective usage. Since the acquisition by Salesforce, the licensing structure has also become more complex.

Pricing: Tableau Viewer $15/user/month / Explorer $42/user/month / Creator $75/user/month. Tableau Public (free) is available for individual use, and free license programs are offered for students and educators.

Best for: Enterprise teams requiring advanced visualization or large-scale data analysis. It suits sales and marketing departments looking to integrate with Salesforce CRM, as well as data analysts utilizing a modern data stack.

View detailed features, pricing, and FAQ for Tableau AI

2. ChatGPT Advanced Data Analysis

ChatGPT Advanced Data Analysis (formerly Code Interpreter) is a feature that allows you to upload files to ChatGPT to perform data analysis. It processes files such as CSV, Excel, images, and PDFs, and can even build machine learning models while performing statistical analysis and data visualization. With just natural language instructions, it automatically generates and executes Python code, outputting graphs and reports.

• Strengths: You can perform advanced analysis simply by instructing in Japanese, such as "Graph the sales data."
• Strengths: Even without programming knowledge, the AI automatically generates and executes Python code.
• Strengths: Creating graphs and visualizing data is easy to complete.
• Things to note: There are limitations in processing large datasets, and it lacks the flexibility of dedicated tools.
• Things to note: Data is not retained between sessions, so caution is needed for continuous work.

Pricing: According to AIpedia data, this is a feature included in ChatGPT Plus ($20/month). It may be usable with limitations on frequency etc. even on the free plan, so please check the official website for the latest terms.

Best for: Individuals who want to easily perform data analysis and create graphs without programming knowledge. It is available on Web, iOS, and Android platforms.

View detailed features, pricing, and FAQ for ChatGPT Advanced Data Analysis

3. Julius AI

Julius AI is an AI tool that lets you perform data analysis using natural language without any programming knowledge. You can upload files such as CSV or Excel and simply instruct it to "create a graph," and it will automatically execute visualization and statistical analysis.

• Strengths: It automatically generates Python or R code, enabling advanced processing while ensuring the transparency of the analysis.
• Strengths: It supports various methods such as regression analysis and time-series forecasting, and results can be shared as interactive dashboards.
• Things to note: Processing speed may decrease with large datasets exceeding one million rows.
• Things to note: It does not support real-time data integration, making it suitable for analyzing static data. The free plan allows up to 25 messages per month.

Pricing: Free plan (25 messages/month) / Essential $20/month / Pro $49/month (advanced analysis, unlimited)

Best for: Business professionals and researchers who want to quickly create easily shareable analysis results within their team while avoiding coding.

View details on Julius AI features, pricing, and FAQ

4. Rows AI

Rows AI is a next-generation spreadsheet tool powered by AI. You can perform data analysis and generate graphs simply by giving instructions in natural language. Its key feature is that it handles everything from data retrieval to visualization in one stop.

• Strengths: It integrates directly with over 50 data sources, allowing for automatic data import.
• Strengths: It operates with a spreadsheet-like interface, resulting in low learning costs and intuitive handling.
• Things to note: It does not support a Japanese interface, so operation requires English.
• Things to note: Processing may slow down when handling large datasets of one million rows or more. Complex statistical analysis is better suited for Python or R, and the Pro plan monthly fee ($59/user) is also somewhat high.

Pricing: There are three plans: Free (limited free), Pro ($59/user/month), and Enterprise (contact sales).

Best for: Individuals who want to leverage their spreadsheet experience to easily perform data analysis using natural language. It is also suitable for sharing analysis results within a team to support decision-making.

5. Hex AI

Hex AI is a data science notebook and BI platform that combines SQL and Python. With its Magic AI feature, it can automatically generate queries and code from natural language. It also allows for the creation of interactive dashboards and team sharing.

• Strengths: You can use SQL and Python in a single notebook, improving the efficiency of analysis tasks.
• Strengths: It features AI-powered automatic query generation, reducing the burden of writing code.
• Strengths: It includes features for creating interactive dashboards and sharing with teams.
• Things to note: Basic knowledge of data science is required, so it may be somewhat difficult for beginners.
• Things to note: The Japanese UI is not supported; only English is available. Additionally, there may be limitations in processing large-scale data.

Pricing: Free plan / Professional $26/user/month / Team $47/user/month

Best for: Individuals with basic knowledge of SQL or Python who want to improve analysis efficiency using AI assistance. It is also suitable for sharing data analysis and dashboard creation within a team.

View details on Hex AI features, pricing, and FAQ

6. Dataiku

Dataiku is a comprehensive AI data analytics platform for enterprises. It supports the entire workflow, from data preparation to building, deploying, and monitoring machine learning models. It offers both a visual interface and coding capabilities, making it accessible to a wide range of users.

• Strengths: Supports both no-code and code (Python, R, SQL), allowing data scientists and business analysts to work in the same environment.
• Strengths: Offers visual ML, AutoML, MLOps, and governance. It has extensive experience in production environments for enterprises. Available on web, on-premises, and cloud, with a Japanese subsidiary.
• Things to note: High learning curve and excessive features for individual use. Pricing is not public and tends to be high.

Pricing: Free version (for individuals/learning) / Team, Business, Enterprise (contact sales)

Best for: Enterprises that want to conduct enterprise-level data analytics and manage machine learning models as an organization.

View details on Dataiku's features, pricing, and FAQ

7. DataRobot

DataRobot is an AI/machine learning platform for enterprises. It automates everything from model building to operations using AutoML technology. You can create predictive models without specialized knowledge.

• Strengths: Build machine learning models without coding. Covers the entire operational lifecycle, including model deployment and monitoring. Also supports building and managing generative AI apps.
• Strengths: Robust model explainability features using SHAP and LIME make it easy to verify the basis for decisions. Supports time-series forecasting and anomaly detection, available via web and API.
• Things to note: Designed for enterprises, so it may be expensive for small and medium-sized businesses. Initial setup can take time, which should be considered.

Pricing: Contact sales (for enterprises) / Free trial available / DataRobot Community (free version for learning) available

Best for: Enterprises aiming to democratize data science. Suitable for those who want to build and manage high-accuracy predictive models even with limited specialized personnel.

8. Obviously AI

Obviously AI is a no-code AI platform that requires no programming or data science expertise. Upload data from CSVs or databases and select the target variable to predict; the AI automatically selects the best algorithm to build a machine learning model. It supports a wide range of business use cases, such as sales forecasting and customer churn prediction.

• Strengths: Completes the process from data upload to finished predictive model in minutes. Easy deployment to production environments via API.
• Strengths: Automatically generates model accuracy reports and feature importance analysis, making it easy to understand the basis for predictions.
• Things to note: Does not support advanced custom modeling. Note that Japanese documentation is limited.

Pricing: Free trial / Starter $75/month / Professional $187/month / Enterprise (contact sales)

Best for: Business users who want to build machine learning models without specialized knowledge and integrate them into existing systems.

View details on Obviously AI's features, pricing, and FAQ

9. Polymer

Polymer is a tool that uses AI to analyze spreadsheet data from Google Sheets, Excel, or CSVs and automatically converts it into interactive dashboards. Simply load your data, and the AI suggests optimal graphs and charts. Its key feature is providing visual insights without requiring specialized knowledge.

• Strengths: Create dashboards instantly from spreadsheets.
• Strengths: No-code operation. Supports URL sharing and embedding into websites.
• Things to note: Limited support for large-scale data. Cannot perform advanced statistical analysis.
• Things to note: No Japanese UI support. English only.

Pricing: free plan / Starter $10/month / Pro $25/month / Enterprise (contact sales)

Best for: Individuals who want to easily visualize data managed in spreadsheets without specialized knowledge.

View detailed features, pricing, and FAQ for Polymer

10. Contentsquare

Contentsquare is an AI-powered digital experience analytics platform. It uses AI to analyze user behavior on websites and mobile apps, automatically extracting insights that lead to UX improvements. It also includes features such as heatmaps and session replays.

• Strengths: AI detects abnormal patterns in user behavior, identifies causes of increased drop-off rates, and sends notifications.
• Strengths: Integrates heatmaps, session replays, funnel analysis, and more. Also supports Hotjar features.
• Strengths: Has a Japanese subsidiary and offers support in Japanese.
• Things to note: Tiered pricing based on traffic volume. Costs may become high.
• Things to note: Implementation and setup require web marketing knowledge. Mastering all features may take time.

Pricing: Contact sales (tiered pricing based on traffic volume)

Best for: Individuals who prioritize detailed visualization of user behavior and AI-driven root cause analysis. Suitable for businesses seeking Japanese support, or those ranging from small to large scale.

Recommendations by Goal

Goal	Recommended	Reason
Want to try it for free first	Julius AI, Hex AI	Julius AI offers up to 25 messages per month for free, and Hex AI also has a free plan.
Want to use it with Japanese instructions	Tableau AI, ChatGPT Advanced Data Analysis	Both tools support Japanese and allow data analysis using natural language.
Want to analyze easily with a spreadsheet-like feel	Rows AI, Polymer	Rows AI includes spreadsheet features, and Polymer can create dashboards instantly from spreadsheets.
Want to share and manage with a team	Tableau AI, Dataiku	Tableau AI allows dashboard creation via drag-and-drop, while Dataiku offers enterprise-level collaboration features and governance.
Want to build machine learning models	DataRobot, Obviously AI	DataRobot streamlines model building with AutoML, and Obviously AI automatically builds predictive models without code.
Want to focus on improving website UX	Contentsquare	AI detects abnormal user behavior patterns and automatically extracts UX insights through heatmaps and session replays.

The above are general guidelines based on tool features. For specific feature scopes and the latest pricing structures, please check the details on each tool's official website.

How to Choose Without Regrets

Select a pricing model that fits your goals and data scale

Pricing structures vary significantly by tool. Tableau AI’s Creator plan is expensive at $75/user/month, but it includes standard enterprise BI features. In contrast, Julius AI offers a free plan with up to 25 messages per month, and its Pro plan is relatively affordable at $49/month.

If you are an individual or a small team performing basic analysis, it is practical to start with Rows AI’s Free plan or Hex AI’s free plan. Conversely, enterprise-focused tools like Dataiku and DataRobot do not publish their prices. You need to carefully consider budget allocation and implementation costs.

Check usability based on Japanese support

Even for tools operated via natural language, the language of the interface and documentation varies. Tableau AI and ChatGPT Advanced Data Analysis support Japanese, allowing for intuitive operation.

On the other hand, Rows AI, Hex AI, and Polymer do not support a Japanese UI. If you are hesitant about giving instructions or operating screens in English, select tools like Julius AI that allow Japanese input. This reduces the operational burden after implementation.

Understand the required analysis depth and technical constraints

The scope of analysis each tool excels at differs. ChatGPT Advanced Data Analysis can execute Python code for statistical processing, but note that data is not retained between sessions.

DataRobot and Obviously AI specialize in automatically building machine learning models. In contrast, Polymer is strong at generating dashboards from spreadsheets but does not support advanced statistical analysis. The optimal tool changes significantly depending on whether your company’s challenge is “visualization” or “predictive modeling.”

Verify compatibility with existing data sources

Many tools run in the browser, but the types of connectable data sources differ. Tableau AI can natively connect to hundreds of data sources, such as Snowflake and BigQuery. Rows AI also supports direct integration with over 50 data sources.

Dataiku can run on-premises or in the cloud, and DataRobot is accessible via API. It is important to choose a tool by first confirming where your company’s data is stored and what formats can be imported, minimizing migration costs.

FAQ

Q. Which tools offer a free plan?

Julius AI (up to 25 messages/month), Rows AI (with limits), Hex AI, and Polymer have free plans. Dataiku (for individuals/learning) and DataRobot (DataRobot Community) offer free versions for learning purposes. Obviously AI offers a free trial. Tableau has Tableau Public, which allows you to publish visualizations for free.

Q. Are there tools that support Japanese operations or instructions?

Tableau AI, ChatGPT Advanced Data Analysis, Julius AI, DataRobot, and Contentsquare support Japanese. Rows AI, Hex AI, and Polymer do not support Japanese; they are English-only. Dataiku has partial support (has a Japanese subsidiary), and Obviously AI has partial support (UI is in English).

Q. Which tools allow building machine learning models without code?

Dataiku, DataRobot, and Obviously AI support building machine learning models without code. Obviously AI completes predictive models within minutes of uploading data. DataRobot automates everything from model building to operations using AutoML.

Q. How much do plans for individual use or small teams cost?

ChatGPT Advanced Data Analysis is $20/month, and Julius AI is $20/month on the Essential plan. Polymer’s Starter plan starts at $10/month. Tableau AI’s Creator plan is $75/user/month, which is expensive and may be a heavy burden for small-scale use.

Q. Which tools are suitable for analyzing large datasets?

Tableau AI, Dataiku, and DataRobot support enterprise-level large-scale data processing. Julius AI may experience reduced processing speeds with data exceeding 1 million rows, and Polymer also has limitations for large-scale data. Rows AI may also become slow with 1 million rows or more.

Summary

This article compared 10 tools, from Tableau AI to Contentsquare. Each tool differs in pricing structure and functional strengths. For example, Tableau AI excels at visualization, while Rows AI is easy to use with a spreadsheet-like feel.

Also, Japanese support and required platforms vary by tool. It is important to choose the optimal tool based on your business scale and goals. We recommend using free plans or trials before implementation to check usability.

• Easy analysis: Julius AI (easily create charts using natural language)
• Enterprise foundation: Dataiku (comprehensive MLOps features and extensive operational track record)
• UX improvement: Contentsquare (specializes in automatic analysis of user behavior and insight extraction)

View all AI data analysis tools (14 items)