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[ARTICLE · art-94945] src=discuss.huggingface.co ↗ pub= topic=artificial-intelligence verified=true sentiment=· neutral

100% Hallucination Free LLM

Thomas Hansen, creator of the Hyperlambda programming language, announced an LLM that cannot hallucinate non-existent functions by generating Hyperlambda code and verifying each function invocation, retrying up to two times before returning an error. The 10ms process, integrated into his 'generate code endpoints', improved his LLM evals by almost 10 percentage points, though it can still hallucinate intent such as returning rows from the wrong database.

read1 min views1 publishedAug 13, 2026
100% Hallucination Free LLM
Image: Discuss (auto-discovered)

Hi guys and gals,

I’ve create an LLM that cannot hallucinate, not even in theory, but before you jump to your guns, hear me out how it works;

  • The LLM generates Hyperlambda
  • Every single function invocation in the code is verified to exist
  • If the LLM hallucinates non-existent functions, it tries again, 2 more times, before it gives up and returns an error

The whole point being that this is a 10ms job, integrated into my “generate code endpoints”, resulting in that the process is 100% automatic. Interestingly, due to the “failed, repeat again” loop, my evals for the LLM increased almost 10pp.

It can still hallucinate “intent”, such as returning rows from wrong database, etc - But it cannot hallucinate non-existent functions or concepts - Not even in theory

And yes, that EM dash was mine …

Read more below …

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