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I've built a new AI model that is not allowed to generate text. Instead, it produces a verifiable program that answers your prompt using the original reference. XERJ Reader-1 is a neurosymbolic model for working with data. It points to the exact words in your document, writes a small... show more
1,711,480 Aufrufe • vor 3 Tagen •via X (Twitter)
63 Kommentare

Classic transformer LLMs read well and compute badly, and code does the opposite. So XERJ Reader-1 only decides where to look and which of 56 symbols to apply. Exact code computes the answer and returns it with the words it came from. When the document has no answer, the program says so.

Comparing XERJ Reader-1 and LLMs side by side makes the difference clear: XERJ Reader: marks where the answer lives in your document → writes a small program from those words → runs it and returns the answer LLM: reads the whole document → writes the answer token by token → a human checks it That's the whole model. It costs $10 per BILLION input tokens, 10x less than Claude Haiku 5.5 and 400x less than Claude Opus 5.5.

Made-up quotes and citations are already costing companies and lawyers money: - Deloitte refunded A$97,587 to the Australian government for a report that quoted a federal judge saying something she never wrote - A US federal court in Oregon ordered two lawyers to pay $110,204 after their briefs cited 15 cases that don't exist (Couvrette v. Wisnovsky) I gave XERJ Reader-1 the court order Deloitte misquoted and asked who must establish that a benefits debt is owed, then where the judge says the line Deloitte quoted. Reader found no answer to either question in the document. The two checks cost 0.007¢ together (10x less than Claude Haiku).

How it works under the hood: Join the waitlist for early access: Talk tech with us on Discord: We can't wait to see what you throw at it.

wow cool sounds very very helpful for product teams and tech founders! good luck with the product!

thanks!

Congrats Ivan! 🤝 Huge milestone for you and the team. Really excited to see where you take this. Wishing you all the best and plenty more wins ahead!

Thanks so much! Really appreciate the support

Writing a formula over the exact words instead of an answer is such a clean idea. Every result is checkable.

You get it 🤝

looks intresting

Thanks a lot!

congrats on shipping this, genuinely one of the most interesting models i’ve seen in a while. excited to watch it grow

Appreciate it! Plenty more to come 🙌

wow claude is cooked

Things are getting interesting 👀

Verifiability over generated answers

That's what we're betting on. Answers you can actually check

the most appealing thing is the price for the same result

That's a big part of what makes it exciting

really cool product gery helpful as well

Thanks! Glad you think so!

nice approach

Appreciate it!

a model that’s not allowed to make things up is the most useful thing i’ve seen this month. congrats

That's a huge compliment, thank you!

verifiable programs with exact source pointers is the real unlock

Exactly. That's what matters most

thats a clever approach

Thanks!

"output tokens free" got me. congrats on shipping this

Appreciate it!

before this I thought that Jev might be the breakthrough in AI tech. I was so freaking wrong.

Means a lot! Excited for what's ahead

so many advantages to use XERJ instead of Opus

Thanks! Excited to see what people build with it

$0.01 per million input tokens and free output. For a pipeline that reads thousands of documents a day, that changes the budget.

so it cites its sources, cute, still no idea if the answer's right

Fair point. That's why XERJ Reader gives you more than a citation. You can actually rerun the program and see how it got to that answer

Claude is cooked XERJ is way cheaper and faster

Pretty wild difference, right?

definitely a gamechanger

I thought Opus 5.5 is the best model

Wow. Verifiable answers instead of generated text could make data automation much more trustworthy.

Couldn't agree more

Thank you for all the work you've done

that will be fr useful for me

Glad to hear!

I like that the calculation comes with the answer. Much easier to check an unexpected result when you can replay how it was produced.

teams buried in recurring document questions should pay attention free output tokens change the automation budget!

Exactly! Makes a huge difference for high-volume workloads

congratulations on the release! this model is really a new round of development of the entire industry, it has never been so cheap and at the same time of high quality

a model that shows its work as code is exactly what data teams have been waiting for

That's exactly what we're aiming for!

really great product

getting the program behind every answer means i can check the numbers myself, congrats on the launch

Need to test this

Looking forward to hearing your thoughts!

The best deal on the market

Picking where to look and which of 56 symbols to apply is still a judgement call. A wrong pick now ships with code attached, so it reads as authoritative. How does accuracy compare to a plain model on the same documents?

wild thread man

Thanks!

actually impressive. faster, cheaper, and you can verify every answer



