I'm continuing the work on Cellm, an Excel extension that let's you call LLMs in cell formulas like =PROMPT(A1, "Rate the sentiment of the customer feedback as positive, neutral, or negative"), and then drag the formula down to apply the same prompt to thousands of rows. I built it after my girlfriend had to manually classify 7,500 research papers. Cellm automates that kind of repetitive work.

Since we added MCP and the use of structured output to "spill" multiple return values into adjecent cells, it is the quickest way I know of to monitor competitors blogs everyday before my 09:00 meeting. And also the quickest way I know of to test new AI models. I have a sheet with SimpleQA, MMLUPro, or GPQA Diamond and testing a new model is a matter of adding a new column. The whole idea is to enable normal people (like, non-techies) to automate manual, repetitive tasks with AI like programmers routinely do.

https://github.com/getcellm/cellm

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Jabbles 5 days ago | parent | next [-]

Like https://support.google.com/docs/answer/15820999?hl=en-GB ?

	▲	kaspermarstal 4 days ago \| parent [-]
		Yes exactly like that!

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incognito124 5 days ago | parent | prev | next [-]

That's a clever project name! :)

	▲	kaspermarstal 4 days ago \| parent [-]
		Cool, thanks!

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duskhat 5 days ago | parent | prev | next [-]

Somewhat similar is https://paradigmai.com.

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kaspermarstal 4 days ago | parent | next [-]

Looks very similar yes, it is a great UI paradigm for running many prompts. I think of spreadsheets as the OG low-code tool and with just a sprinkle of LLMs, people can do so much more with tools they already know

	▲	duskhat 3 days ago \| parent [-]
		Totally agree! And to be clear, I'm not intending to discourage you (or anyone else) from working on it. A bunch of smart people separately working and iterating to create the best version of spreadsheet + LLMs makes me a happy user

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lippihom 4 days ago | parent | prev [-]

Kind of looks a bit like what Clay is built to do...?

	▲	kaspermarstal 3 days ago \| parent [-]
		Okay, I'll bite. There are many clever people out there who figured out that spreadsheets is a great UI paradigm for building low-code AI workflows. That is good for users. And I find it is good for me. Thanks for validating the idea guys.

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juxtaposicion 5 days ago | parent | prev | next [-]

That’s pretty interesting. I’ve using Airtable’s “field agents” for a similar use case, but would love to use this instead. Does it automatically cache values? (Don’t want to pay for repeat prompts just because one input cell updated)

	▲	kaspermarstal 4 days ago \| parent [-]
		Yes it does, you can toggle it on and off. Send me an email at kasper at getcellm dot com or sign up to the waitlist on getcellm dot com and I will personally onboard you!

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lippihom 4 days ago | parent | prev | next [-]

Will keep an eye out for this when it launches.

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rrr_oh_man 5 days ago | parent | prev | next [-]

Do you have paying users?

I built something like that for Google Sheets in early 2024 and now I'm thinking whether I missed an opportunity.

	▲	kaspermarstal 4 days ago \| parent [-]
		No not yet, we are about to onboard the first users on the waitlist one-by-one and when we have ironed out the major issues that we will inevitably discover, we will open up for paid users after that. I wouldn’t worry too much about missing out, as you probably very well aware, whatever you choose to work on takes incredible amounts of time and energy to get off the ground. Now you just have more time to out into something else :)

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mceoin 5 days ago | parent | prev [-]

Hey Kasper - would love to grab a coffee sometime (on the Internet : )

	▲	kaspermarstal 4 days ago \| parent [-]
		Hey, sure! Send me an email at kasper at getcellm dot com and let’s find a time