Elta by Exergy Lab
A technical assistant that works with you in real time.
Share your screen, talk the problem through, and Elta works with you on it in real time, from the spreadsheet in front of you to the design you are still sketching.
Free plan includes 100,000 tokens a day. No credit card needed.
- Chrome extensionInstall (opens in a new tab)
- Microsoft EdgeComing soon
- Mozilla FirefoxComing soon
Why Elta
Help that arrives while the work is happening.
It works where you work
Elta lives in a browser side panel. No copying data into a separate chat window.
It talks it through
Speak naturally. Interrupt. Ask why. Elta answers out loud.
It thinks out loud
“I’m assuming the flow rate is in kg/s, not kg/h. Want me to fix cell D14?”
You stay in control
Elta only sees what you share, and it asks before any bigger step.
How it works
Four steps, from install to first answer.
Example: an engineer asks, “Look at this spreadsheet and help me work out why the heat duty looks too high.”
Share
Pick a screen, window, tab or image. Elta sees only what you choose.
Discuss
Talk it through. Interrupt, push back, ask follow-ups.
Work
Elta helps with the calculations, the thinking and the next step, and tells you what it assumed.
Continue
Keep working in your own tools. Elta can take care of routine steps and asks before anything bigger.
What you can do with Elta
Bring it the work you are in the middle of.
- SpreadsheetsShare the sheet. Elta flags cells that look wrong, explains why, and fixes them once you approve.
- Units and conversionsTalk through conversion factors and catch mismatches early.
- Lab reports and problem setsWalk through the method and the math, with each step explained.
- Energy and process modelsTalk through a heat or mass balance, step by step.
- Papers and datasheetsShare a PDF or image and ask what the numbers mean.
Built for real work
Made for the work you actually do.
Elta is built for engineers, researchers, students and founders who work with numbers, models and documents every day. It sees only what you choose to share, asks before it takes any bigger step, and gets out of the way when you are done.
Pricing
Start free. Upgrade when the work gets bigger.
Free
$0
Quick questions, calculations and files.
Plus
$19/month
Document and spreadsheet workflows, with PDF, Word and Excel downloads.
Pro
$99/month
Extended research, automation and large multi-step file workflows.
What is Elta?
Elta by Exergy Lab is a technical assistant that works with you in real time. It sees the screen, window, tab or image you choose to share, talks it through with you by voice, and helps you get technical work done. Elta runs in Chrome. Microsoft Edge and Firefox are coming soon.
Can Elta help with my spreadsheet?
Yes. Share the spreadsheet and tell Elta what you need: walk through the formulas, find why a number looks off, or build the next section together. Elta can make routine edits for you, and it asks before anything bigger.
What kind of work is Elta good for?
Technical work in front of you: spreadsheets, lab reports, energy and process models, engineering designs, papers and datasheets. If you can put it on your screen, you can talk it through with Elta.
How is Elta different from ChatGPT or Claude?
Elta works where you are working, not in a separate window. It sees what you share, you can interrupt it by voice, and it tells you the units and assumptions behind the work as it goes.
What can Elta see?
Only what you choose to share: a screen, a window, a tab or an image. You can stop sharing or end a session at any time.
Is Elta free?
Yes. The Free plan includes Elta and the Voice Agent with 100,000 tokens a day. Plus adds document and spreadsheet workflows for $19 a month, and Pro adds extended research and automation for $99 a month.
Which browsers does Elta support?
Elta runs in Chrome. Microsoft Edge and Firefox are coming soon.
Who is Elta for?
Engineers, researchers, students and technical founders who want a capable partner for the work in front of them.
Work with Elta in real time.
Free for Chrome. No credit card needed.
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