MultipleChatAnalyze spreadsheets
Totals, averages, growth rates and pivots from CSV and Excel files, calculated rather than estimated.
CHATGPT SANDBOX
ChatGPT that runs the numbers.
Not just talks about them.
The ChatGPT sandbox gives your ChatGPT chats OpenAI’s Code Interpreter: a private Python workspace where ChatGPT writes and runs code on your files. Ask about your data and get calculated answers, charts and files you can download.
Included with Pro, Smart, Team Pro and Team Smart plans. Uses your shared AI allowance.
Runs in chats with
ChatGPT
ChatChatGPT
Runs onChatGPT sandbox
orders_2026.csvYour uploaded data
“Which product lines grew fastest this year? Chart it and give me an Excel summary.”
ChatGPT writes and runs the code
df = pd.read_csv("orders_2026.csv")growth = df.groupby("line")["revenue"].sum()plt.savefig("growth.png")summary.to_excel("growth-summary.xlsx")
Outdoor grew 41%, the fastest of six product lines.
growth-summary.xlsxExample download
PythonReal code, run on your files
AutomaticDefault for ChatGPT chats
13 formatsSpreadsheets, documents, slides, images
CheckedEvery download is scanned
WHAT YOU CAN DO
Everything Code Interpreter is good at.
Upload a file or describe a task. ChatGPT decides when code helps, runs it, and explains what it found.
Clean messy data
Remove duplicates, fix dates, split columns and merge several files into one tidy table.
Create charts
Line, bar and scatter charts from your data. Ask for new labels, colors or a different comparison.
Run calculations
Forecasts, statistics, loan schedules and scenario comparisons worked through in Python.
Download real files
Get XLSX, DOCX, PPTX, PDF, CSV or images you can open, edit and share.
Keep refining
Stay in the same chat: change an assumption, add data or ask for an updated file.
Downloads can include XLSX · DOCX · PPTX · PDF · CSV · TSV · JSON · TXT · Markdown · PNG · JPEG · WebP · GIF. Office files are macro-free, and every file is security-checked before you can download it.
THREE STEPS, ONE CONVERSATION
How the ChatGPT sandbox works
- 01
Choose ChatGPT
Start a chat with ChatGPT. On an eligible plan, Automatic already uses the ChatGPT sandbox.
- 02
Ask with your file
Upload a spreadsheet or document and say what you want to find out or create.
- 03
Get the result
ChatGPT runs the code, explains the answer and gives you any files as downloads.
MIX AND MATCH
Which chat can use which sandbox
Your chat model and your sandbox are separate choices. ChatGPT can even run its code in Claude’s sandbox.
| Chat | ChatGPT sandboxThis page | Claude sandbox | MultipleChat tools |
|---|---|---|---|
| ChatGPT chat | AvailableAutomatic default | AvailableClaude runs the code | Available |
| Claude chat | Not available | AvailableAutomatic default | Available |
| Gemini chat | Not available | Not available | AvailableAutomatic default |
| Grok chat | Not available | Not available | AvailableAutomatic default |
| Smart mode or several models | Not available | Not available | Available |
| Free plan | Not available | Not available | AvailableIncluded |
Provider sandboxes work in single-model chats for signed-in users on Pro, Smart, Team Pro and Team Smart plans. Everything else uses MultipleChat tools.
YOU’RE IN CONTROL
Switch sandboxes whenever you like.
Leave it on Automatic and MultipleChat picks the native sandbox for your model. Or choose one yourself, for a single answer or as your default.
Open File preferencesIn a conversation
- Below an answer, open Change file processing.
- Pick a sandbox.
- Select Run again.
Applies to that chat only. Rerunning uses more allowance.
For every new chat
- Open Account → File preferences.
- Choose your Default file processing.
- Select Save changes.
Syncs across your devices.
THREE WAYS TO WORK WITH FILES
Compare sandboxes
All three let your AI work with files. They differ in which models they support, who runs the code and what is included in your plan.
OpenAI
Works in ChatGPT chats
You are here
Anthropic
Works in Claude and ChatGPT chats
Learn more
Built in
Works with every model
Learn more
ChatGPT sandbox
OpenAI’s Code Interpreter for ChatGPT chats.
Works in ChatGPT chats
You are here
Anthropic
Claude sandbox
Anthropic’s code execution for Claude and ChatGPT chats.
Works in Claude and ChatGPT chats
Learn more
Built in
MultipleChat tools
Built-in file tools for every model, on every plan.
Works with every model
Learn more
KNOW WHAT TO EXPECT
Plans, files and privacy
Plans and usage
Included with Pro, Smart, Team Pro and Team Smart plans. Sandbox work uses your shared AI allowance, depending on the model, task and tools.
Free plans use MultipleChat tools. Compare plans ↗
Files and privacy
Eligible original files go to OpenAI, which runs the sandbox.
Access, size and security checks apply. ZIP uploads are not supported; upload the individual files instead.
Good to know
Web search is off while a provider sandbox is selected. Smart mode and multi-model chats use MultipleChat tools.
Workspaces are temporary. If one resets, saved files are reused, but unsaved working state is lost.
Questions about the ChatGPT sandbox
Can I use the ChatGPT sandbox with Claude, Gemini or Grok?
No. The ChatGPT sandbox runs in ChatGPT chats only. Claude chats can use the Claude sandbox, and every model can use MultipleChat tools.
Can ChatGPT use a different sandbox?
Yes. ChatGPT can also use the Claude sandbox: ChatGPT stays your chat partner while Claude’s sandbox runs the code. Or switch to MultipleChat tools when you also need web search.
Do I need to know how to code?
No. Describe what you want in your own words. The AI writes and runs code when that helps, then explains the result in plain language.
How do I switch to a different sandbox?
Below an answer, open Change file processing, choose another option and select Run again. That change applies to the conversation only. To change the default for future chats, open Account → File preferences → Default file processing. A choice you make in a conversation takes priority over your account default.
What does Automatic do?
On eligible plans, ChatGPT chats use the ChatGPT sandbox, Claude chats use the Claude sandbox, and Gemini and Grok use MultipleChat tools. Free plans always use MultipleChat tools. If a sandbox chosen automatically cannot be confirmed, the chat continues with MultipleChat tools rather than stopping.
Which plans include the ChatGPT and Claude sandboxes?
Provider sandboxes are included with Pro, Smart, Team Pro and Team Smart plans when you have AI allowance available. Sandbox work uses your shared allowance; how much depends on the model, the task and the tools used. Rerunning an answer with another sandbox uses more allowance. MultipleChat tools are included on every plan. Compare plans →
Can I use web search at the same time?
Not while the ChatGPT or Claude sandbox is selected. Choose MultipleChat tools for web research. Provider sandboxes also work in single-model chats only; Smart mode and multi-model chats use MultipleChat tools.
What happens to my files?
Eligible original files are sent to the provider that runs the sandbox: OpenAI for the ChatGPT sandbox and Anthropic for the Claude sandbox. File access, size and security checks apply, and every generated file is checked before you get a download. Sandbox workspaces are temporary: if one resets, saved files are reused when available, but variables and unsaved working files are lost.
Will results match the ChatGPT or Claude apps exactly?
MultipleChat connects you to OpenAI’s and Anthropic’s native code-execution tools. Results can still differ because of the model, instructions, available tools and execution limits. It is access to those capabilities, not a copy of every feature in the providers’ own apps. Review important calculations and files before relying on them.
Bring a file.
Leave with a result.
Analyze data, run code and create downloads, with the AI you prefer.