NewNew in TwistlyCells

Use TypeSafe’s Jev in Excel

With Jev in Excel, you can classify thousands of rows with a single formula, and soon score and check them too. Jev is a new kind of AI model that doesn’t write essays. It makes quick, consistent decisions, so your sheet fills in fast and costs almost nothing to run.

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Free to try on the Free and Starter plans · Works in Excel for Windows, Mac and the web

Jev in Excel example: AI.CHOICE, AI.SCORE and AI.CHECK classify, score and flag support tickets in an Excel sheet5 rows · 0.4 s
70–500 msper call, end to endReported by TypeSafe
$0.042per million input tokens, output freeTypeSafe pricing, Sep 2026
3decision formulas in ExcelAI.CHOICE now · AI.SCORE & AI.CHECK coming soon

Three Jev formulas for making decisions in Excel

Most AI formulas write text. Jev makes decisions. Give it a row and a question, and it returns a clean answer you can sort, filter and chart right away.

AI.CHOICE

Put every row in the right bucket

Categorize text in Excel with your own labels. Jev picks the best match for each row, and it never invents a label you didn’t ask for.

=AI.CHOICE(A2; "Billing, Bug, Feature request, Account")
InputResult
“I was charged twice”Billing
“Export crashes”Bug
“Add dark mode?”Feature request
AI.SCOREComing soon

Score anything on your scale

Run sentiment analysis in Excel, or rate lead quality, priority or fit from 1 to 5, or on any scale from 2 to 10. You get a number, so you can sort and average it straight away.

=AI.SCORE(A2; "How positive is this review?"; 5)
InputResult
“Absolutely love it”5
“It’s okay, a bit slow”3
“Stopped working after a week”1
AI.CHECKComing soon

Get a yes or no for every row

Ask a yes/no question and get TRUE or FALSE. Use it to flag urgent tickets, spot spam or check whether a row meets your rule.

=AI.CHECK(A2; "Is the customer asking for a refund?")
InputResult
“I want my money back”TRUE
“How do I change my plan?”FALSE
“Please cancel and refund”TRUE

How to use Jev in Excel in three steps

1Install TwistlyCells.

Add the TwistlyCells Excel add-in from Microsoft AppSource. It’s free to start.

2Write a formula.

Type =AI.CHOICE next to your data, the same way you’d use any Excel function. AI.SCORE and AI.CHECK are coming soon.

3Fill down.

Drag the formula down the column, and Jev answers each row almost instantly.

What you can do with Jev in Excel

Support triage

Sort tickets by topic and flag the urgent ones in seconds.

Product categorisation

Map messy product names to your own catalogue categories.

Review sentiment

Score thousands of product reviews from 1 to 5.

Spam & quality checks

Flag junk sign-ups, fake reviews or incomplete entries.

Lead scoring

Rate inbound leads on fit before your sales team calls.

Survey coding

Turn open-ended survey answers into themes you can chart.

Why use Jev for these jobs?

Most AI for Excel tools run on chat models like GPT and Claude, which are great at writing. For simple row-by-row decisions, a decision model like Jev is a better fit.

Chat model (GPT, Claude)Jev in TwistlyCells
What it returnsFree text you may need to clean upA clean answer: a category, a number or TRUE/FALSE
ConsistencyWording can drift from row to rowAlways one of your options or your scale
Speed on big sheetsSeconds per rowTypeSafe reports 70–500 ms per call
Cost on big sheetsAdds up quicklyA fraction of the cost (TypeSafe’s pricing)
Best forWriting, summarising, translatingClassifying, scoring, checking

TwistlyCells still uses chat models for writing tasks like AI.ASK, AI.TABLE and AI.TRANSLATE. Jev handles the decision formulas.

Available on every plan

FreeIncluded
Included. Jev formulas count toward your 100 free AI calls.
StarterIncluded
Included. Jev formulas use your monthly credits, the same as other AI calls.
ProYour API key
Add your own TypeSafe API key to switch AI.CHOICE to Jev. AI.SCORE and AI.CHECK are coming soon.
TeamShared key
The team owner adds one TypeSafe key, and everyone on the team can use it.

Compare all plans →

Questions about Jev in Excel

Jev is an AI model made by TypeSafe AI. It doesn’t write text. It makes typed decisions: it picks one option from a list, gives a score, or answers yes or no, along with how confident it is. TypeSafe calls it a “System One” model, built for fast, snap judgements.

No. TwistlyCells is an independent Excel add-in. It connects to TypeSafe’s Jev model through TypeSafe’s API. We’re not affiliated with or endorsed by TypeSafe AI.

Not on the Free or Starter plans, where Jev is included. On Pro and Team, you add your own TypeSafe API key, the same way you already add your OpenAI, Claude or Azure key.

Nothing changes. AI.CHOICE keeps running on your current provider, exactly as it does today. AI.SCORE and AI.CHECK are coming soon, and they’ll work once you add a TypeSafe key.

No. Jev only makes decisions. For writing tasks, use TwistlyCells formulas like AI.ASK, AI.TABLE and AI.TRANSLATE, which run on chat models.

TwistlyCells works in Excel for Windows, Excel for Mac and Excel on the web.

Start using Jev in Excel

Add TwistlyCells to Excel for free, then type =AI.CHOICE next to your data. AI.SCORE and AI.CHECK are coming soon.

Add TwistlyCells to Excel — free

Jev is a model developed by TypeSafe AI. TwistlyCells is an independent product and isn’t affiliated with, sponsored by or endorsed by TypeSafe AI. All trademarks belong to their respective owners.