{"slug": "100-hallucination-free-llm", "title": "100% Hallucination Free LLM", "summary": "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.", "body_md": "Hi guys and gals,\n\nI’ve create an LLM that **cannot hallucinate, not even in theory**, but before you jump to your guns, hear me out how it works;\n\n- The LLM generates Hyperlambda\n- Every single function invocation in the code is verified to exist\n- If the LLM hallucinates non-existent functions, it tries again, 2 more times, before it gives up and returns an error\n\nThe 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.\n\nIt 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** …\n\nAnd yes, that EM dash was mine …\n\nRead more below …", "url": "https://wpnews.pro/news/100-hallucination-free-llm", "canonical_source": "https://discuss.huggingface.co/t/100-hallucination-free-llm/178362#post_4", "published_at": "2026-08-13 08:35:43+00:00", "updated_at": "2026-08-13 08:41:28.367057+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-tools", "ai-research"], "entities": ["Thomas Hansen", "Hyperlambda"], "alternates": {"html": "https://wpnews.pro/news/100-hallucination-free-llm", "markdown": "https://wpnews.pro/news/100-hallucination-free-llm.md", "text": "https://wpnews.pro/news/100-hallucination-free-llm.txt", "jsonld": "https://wpnews.pro/news/100-hallucination-free-llm.jsonld"}}