Best AI for analyzing a spreadsheet right now

Updated Oct 24, 2026. Checked daily.

Paste a small sample and the question, not the whole file. Ask what the sample cannot tell you.

The reasoning board measures hard exams, not spreadsheet software and not a forecast of your business.

Try this prompt

Look at this sample table and answer the question. Say what you cannot tell from this sample.

Do not paste a full spreadsheet of customer or employee data into a consumer chat that trains on chats by default.

#1 Champion

Anthropic

Claude app, Pro plan ($20/month), choose Opus 5.5.

Paid plan

Leads Humanity's Last Exam

Leads the hardest expert-level exam across every academic field.

Humanity's Last Exam 61.4%.

Details

Why it leads: Humanity's Last Exam 61.4%. Source.
Cost: Pro is $20/month, or $17 if billed yearly. API is $4 per million input tokens and $20 per million output.
Free tier: Not on the free plan. Opus needs Pro or Max.
Privacy default: Anthropic says Free, Pro, and Max chats are used for training only if you allow it, and you choose at signup. The toggle has been reported as on by default, so check it. Settings, then Privacy. Turn off Help improve Claude. Source
When not to use it: Do not trust a proof you have not checked. Ask it to show the steps.
Starter prompt: Solve this step by step, and mark any step you are not sure about.

Top Alternative

OpenAI

ChatGPT Plus, then choose GPT-6 Astra in Work or Codex.

Paid plan

Highest score on graduate-level science questions written by PhD experts.

Humanity's Last Exam not cited. #1 GPQA Diamond (96.1%).

Details

Why it leads: Humanity's Last Exam not cited. #1 GPQA Diamond (96.1%). Source.
Cost: Needs a paid ChatGPT plan. API is $10 per million input tokens and $50 per million output.
Free tier: Not on the free plan. Plus includes limited Astra use in Work and Codex.
Privacy default: Yes on personal Free, Plus, and Pro. Improve the model for everyone is on by default. Settings, Data controls, turn off Improve the model for everyone. Source
When not to use it: Skip it for a quick arithmetic check. A fast model is enough.
Starter prompt: Work this graduate-level question and cite the principle behind each step.

Best Open Source

Xiaomi

Download the MiMo-V2.6-Pro weights, or open Xiaomi AI Studio.

Free (limited)

Matches some frontier proprietary models on hard reasoning at a fraction of the cost.

Humanity's Last Exam 49.4%.

Details

Why it leads: Humanity's Last Exam 49.4%. Source.
Cost: Weights are free under MIT. API is about $0.44 per million input tokens and $0.87 per million output.
Free tier: The weights are free to download and run yourself.
Privacy default: No, if you download the weights and run them yourself. Hosted Xiaomi apps may differ. Run the open weights on your own machine when chats must stay private. Source
When not to use it: Skip it when you need the single highest exam score. The leader still leads that board.
Starter prompt: Explain this concept with one example, then give me a harder practice problem.