CHOOSE BY OUTCOME

Best AI for Analyze Data

Compare AI for spreadsheets, long documents, statistics, and decisions that need a defensible answer.

BEFORE THE SHORTLIST

How to choose in this category

How to choose

Start with where the data lives. If it is in a spreadsheet, an assistant inside that spreadsheet removes the export step and the errors that come with it. If it is in documents, scans, or recordings, a model that accepts those natively saves you a preprocessing pipeline. If it is in a database, you want a tool that writes queries you can read and check.

The rule that matters most

Never accept a number you cannot reproduce. The useful test for any tool in this group is not whether the answer looks right, it is whether it shows you enough working that you could find the error yourself.

THE QUICK READ

Strong choices, for different reasons

SIDE BY SIDE

The decision table

Prices are shown as published by the vendor in U.S. dollars and may differ by region. Always check the vendor page before subscribing.

Product 18BYTE call Free option Paid price Best for Review status
ChatGPT Best all rounder Yes, with usage limits that vary by model and demand Go USD 8 per month, Plus USD 20 per month, Pro USD 100 or USD 200 per month, all billed monthly One workspace that moves between writing, research, analysis, and code Source review
Gemini Best for Google users Yes, with a Google Account. Includes Gemini 3.6 Flash, image generation, Deep Research, and 15 GB storage AI Plus USD 4.99, AI Pro USD 19.99, AI Ultra from USD 99.99 and USD 199.99 per month Work that already lives in Gmail, Docs, Drive, and Sheets Source review
Claude Best for long form writing and code Yes, including chat, code generation, web search, memory, and file creation, with usage limits Pro USD 20 per month, or USD 17 per month billed annually. Max from USD 100 per month Long documents, careful revision, and agentic coding Source review
Perplexity Best for cited research Yes, with limited weekly usage and basic models only Pro USD 20 per month, Max USD 200 per month, both billed monthly Questions where you need to open the sources yourself Source review
Microsoft Copilot Best inside Office Yes, on the web and in apps with a Microsoft Account Microsoft 365 Personal USD 9.99 per month or USD 99.99 per year, Family USD 12.99 or USD 129.99, Premium USD 19.99 or USD 199.99 Spreadsheet and document work for people already paying for Microsoft 365 Source review
BEFORE YOU CHOOSE

What each one gets right, and where it asks you to compromise

Best all rounder

ChatGPT

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Where it wins

  • The widest feature range of any consumer AI product, covering research, files, data, images, and code
  • Deep Research and web browsing built in
  • Projects, memory, and custom GPTs make repeat workflows genuinely faster
  • Four price points, from USD 8 to USD 200, so you can match spend to use

Know before choosing

  • The number of modes and models is genuinely confusing, and the right one is rarely obvious
  • Usage allowances are per model rather than one pool, so heavy users hit caps they did not expect
  • Chat data trains OpenAI models by default and you have to go and turn it off

Privacy note

OpenAI states consumer chat data is used to improve its models by default. You can disable this under Data controls, using the Improve the model for everyone toggle.

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Best for Google users

Gemini

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Where it wins

  • Sits inside Gmail, Docs, and Sheets rather than beside them
  • The cheapest paid entry point of any major assistant at USD 4.99 a month
  • Bundles 5 TB of storage and YouTube Premium Lite at the Pro tier, which changes the real cost comparison
  • Genuinely capable free tier

Know before choosing

  • The value case collapses if you do not use Google services
  • Feature availability varies by region and plan more than rivals
  • Google states that even with Keep Activity off or in temporary chats, conversations are still processed for safety and security, including by human reviewers

Privacy note

Google states that with Keep Activity on, chats are used to train its generative AI models, and turning it off means future chats are not used for training. Safety processing continues either way.

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Best for long form writing and code

Claude

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Where it wins

  • The strongest default privacy position of the major assistants: consumer data is not used for training unless you opt in
  • Claude Code is included rather than sold separately, which is unusual value for developers
  • Excellent at long form drafting, structural editing, and reasoning over large documents
  • The free plan runs on Claude Sonnet 5, a frontier class model

Know before choosing

  • Usage limits apply on every tier, including Max, which Anthropic footnotes on its own pricing page
  • The Max tier price is quoted only as from USD 100 per month, so the 20x tier cost is not published
  • Less integrated web research than Perplexity or Gemini

Privacy note

Anthropic states consumer data is not used for model training unless you opt in through Model Improvement Privacy Settings, and Incognito chats are excluded even when that setting is enabled. This is the strongest default position among the major assistants.

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Best for cited research

Perplexity

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Where it wins

  • Answers are built around citations rather than having them bolted on
  • Very fast at surfacing current web material
  • Low friction follow up questions make it good for exploring a topic rather than just querying it

Know before choosing

  • Citations sometimes support only part of a generated sentence, so you still have to read them
  • The free tier restricts you to basic models with limited weekly usage
  • Perplexity's privacy notice says data is used to improve or create services and products including its AI models, and we found no dedicated training opt out for general queries. The only explicit carve out is that email content is not used for training

Privacy note

Perplexity states data is used to improve or create its services and products, including its AI models. We found no dedicated opt out toggle for general queries. The one explicit exclusion is that email content is not used to train models.

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Best inside Office

Microsoft Copilot

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Where it wins

  • Works inside Word, Excel, PowerPoint, and Outlook rather than requiring copy and paste
  • Bundled with a subscription many people already hold, so the marginal cost is low
  • The Premium tier adds AI agents for research reports and data analysis

Know before choosing

  • On the Family plan, Microsoft states AI features are available to the subscription owner only, not all six members, which is easy to miss when comparing prices
  • Consumer conversation data is used for AI model training by default and requires opting out
  • The good agent features sit at the USD 19.99 Premium tier

Privacy note

Microsoft confirms consumer conversation data is used for AI model training by default. You opt out under Privacy, using the Training on conversation activity toggle, with a separate toggle for voice conversations.

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UNDER THE HOOD

The models worth knowing for this work

These are engines rather than products. Relevant if you are building something, or if you want to know what the products above are actually running.

HOW TO DECIDE

Choosing without regret

You have the comparison. This is how to turn it into a decision you will not want to reverse in a month.

Give it a question you already know the answer to

Run each candidate against an analysis you have finished and checked. You are not testing whether it can produce a number. You are testing whether it produces your number, and whether it tells you how it got there.

Check what it does when the data is bad

Real data has blank rows, mixed formats, and duplicated records. The tool worth paying for is the one that says so. The one to avoid is the one that quietly produces a confident total anyway.

Keep the audit trail

If the result will inform a decision someone else has to defend, prefer the tool that outputs a formula, a query, or a documented step. A chat answer with no working behind it cannot be reviewed later.

PRIMARY SOURCES

TRUST THE PROCESS

No mystery score. No paid winner.

We separate documented capabilities, editorial judgment, and measured testing, so you always know what supports a recommendation and what does not.

How 18BYTE reviews AI →