Spanda – Sub-microsecond LLM epistemic uncertainty in Rust
Zero-cost epistemic uncertainty quantification & hallucination detection for LLMs (90,000x faster than Semantic Entropy) - Adarshent/Spnda
Spanda – Sub-microsecond LLM epistemic uncertainty in Rust launched on September 11, 2026 with 13 votes, #913 of 8,097 launches that month and more than 90% of that year's launches.
In plain words
Spanda is a Rust library that measures uncertainty in large language model outputs and detects hallucinations using epistemic uncertainty quantification. It operates at sub-microsecond speeds, significantly faster than existing methods like Semantic Entropy. The tool is designed for developers building AI applications who need to identify when their language models generate unreliable or fabricated information without adding computational overhead.
written from the facts on this page · September 2026
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