Skip to content

AI chat with file upload

AI chat with file upload that keeps the source in the thread.

Attach PDFs, images, and documents you choose, then ask across models—summary, extraction, critique, or Strict Math—without re-uploading every time the task changes. Full workspace access requires a Pro or Lifetime plan.

See plansExplore capabilities

Pro from $14.99/month · Lifetime $149.99 one-time

View live demo
  • 1PDFs & images
  • 2Multi-model Q&A
  • 3Branch on the same file
Workspace preview
From this attached brief, extract decisions, open questions, and risks.
Gemini 3 Flash

I stayed grounded in the upload:

  1. 01Decisions listed with page cues where clear
  2. 02Open questions called out explicitly
  3. 03Branch for a stakeholder-ready summary

Ask anything

SearchLow

Files are the real context

Prompts without documents are half the story.

Course packs, RFCs, contracts, and slide decks are where the details live. A serious AI chat must accept them without drama.

  1. 01

    Paste limits

    Long PDFs do not fit in a single message cleanly.

  2. 02

    Re-upload fatigue

    Switching models or tools often means attaching the same file again.

  3. 03

    Wrong model for the document

    Summaries, careful legal reading, and math in appendices need different strengths.

Attachment workflow

Upload once. Work in modes.

Files sit inside a multi-model workspace—not a one-shot uploader.

File & PDF upload

Attach documents and images you choose to share.

Your control.

Model per job

Summarize with one model; critique with another.

Same attachment context.

Math on appendices

Move into Strict Math when the PDF includes formulas.

STEM courses.

Live search

Cross-check claims in a brief against current sources on supported models.

When currency matters.

Branch readings

Fork a skeptical reading and a summary reading of the same file.

Compare takes.

Ultra Mode

Multi-agent review of a high-stakes document on Pro.

Before you decide.

Document loop

Attach, ask, decide.

A reliable pattern for study and work packets.

  1. 01

    Upload the source

    Attach the PDF, export, or image that holds the details.

  2. 02

    Ask a precise job

    Extract, critique, quiz, or derive—not “read this.”

  3. 03

    Switch mode if needed

    Raise reasoning, open math, branch, or change models without a new upload ritual.

Scenarios

File-heavy jobs.

Course reading

Quiz me on chapters 3–4 of this PDF and flag weak answers.

Upload PDF → Normal chat → Branch exam mode

Outcome

Active recall grounded in the file.

RFP / brief

List requirements, constraints, and missing information.

Upload brief → Deep reasoning → Ultra Mode

Outcome

Structured extraction for a proposal.

Problem set scan

Transcribe this problem image and solve with steps.

Upload image → Strict Math → Visualization if useful

Outcome

Steps tied to the original problem statement.

FAQ

File upload questions

What file types can I upload?

Common document and image attachments are supported for chat context. Exact limits appear in the product UI.

Is this only for PDFs?

PDFs are a primary case, but the workspace is built for broader file attachments. See also our AI chat for PDF page for document Q&A focus.

Do you train on my uploads?

We do not use your content to train our own models. See the Privacy Policy for how providers process data.

Should I upload confidential files?

Follow your school or employer policy. You control what you attach. Prefer redacted exports when in doubt.

How much does milkyway.chat cost?

Pro is $14.99 per month and includes all premium models plus voice chat. Lifetime is $149.99 as a one-time payment and lets you bring your own API keys. Visit the pricing page for current plan details.

Can I try the workspace before subscribing?

Yes. You can explore the interactive math visualization example without a subscription. After signing in, you can browse the workspace interface, but sending messages requires an active Pro or Lifetime plan.

Ready to get started

Attach the source. Keep the work in one workspace.

Pick Pro or Lifetime on the pricing page, then start with the model and tools your task needs.

Get startedView live demo