Best LLM for Data Analysis in 2026
Data analysis with AI ranges from interpreting a spreadsheet to writing complex SQL queries to summarizing 50-page reports. The best model depends on what kind of data work you're doing — and how much of it.
Last updated: February 2026
GPT-5.2 with Advanced Data Analysis (ChatGPT Plus) is the most complete data analysis tool available. Upload a file, get Python-executed analysis, charts, and interpreted results. The Code Interpreter integration turns it into something closer to a junior data analyst than a chatbot.
Free tier at chatgpt.com. ChatGPT Plus ($20/month) unlocks Code Interpreter and file uploads.
Try freeGemini 3 Pro's 1M context window makes it uniquely capable for multi-document analysis — ingesting entire databases, long CSVs, or dozens of reports in one prompt. Google Sheets integration means Workspace users can send data directly without copy-pasting.
Free via gemini.google.com. API at $2/$12 per 1M tokens.
Try freeClaude's 200K context and strong analytical reasoning make it excellent for synthesizing findings across large reports — explaining what the data means, identifying inconsistencies, and writing executive summaries. Particularly reliable on not hallucinating numbers when the source data is in context.
Free tier at claude.ai. API at $3/$15 per 1M tokens.
Try freeGPT-5 mini's reasoning architecture handles multi-step analytical tasks — writing complex SQL, interpreting statistical results, building calculation chains — more reliably than non-reasoning models at similar prices. Good choice for building analysis pipelines where cost matters.
API at $0.25/$2.00 per 1M tokens. 400K context window.
Try freeDeepSeek V3.2 is worth evaluating for high-volume batch processing of non-sensitive data. Strong analytical reasoning at $0.27/1M input. Not appropriate for sensitive business data given Chinese data jurisdiction.
$0.27/$1.10 per 1M tokens. Cache hits drop to $0.07/1M input.
Try freeBottom line
For interactive data analysis with file uploads, ChatGPT Plus with Code Interpreter is the most capable option. For synthesizing large documents and reports, Claude or Gemini 3 Pro depending on document volume. For API-based batch processing where cost matters, GPT-5 mini or DeepSeek V3.2 depending on your data sensitivity requirements.
Quick comparison
| Model | Rating | Price (input) | Context |
|---|---|---|---|
| GPT-5.2 | 8.3/10 | $1.75/1M | 400K |
| Gemini 3 Pro | 8.8/10 | Free | 1.0M |
| Claude Sonnet 4.6 | 8.0/10 | $3/1M | 200K |
| GPT-5 mini | 7.3/10 | $0.25/1M | 400K |
| DeepSeek V3.2 | 6.3/10 | Free | 128K |