Allele — Prompts that evolve.
A governed prompt optimization system: prompts evolve through measurable, cited, budget-bounded runs, with a human approving every change before it ships.
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Available Allele is available today. The demo panel below shows Allele's recorded demo run — real evaluation scores from an actual optimization run, not a simulation.
See it work
Recorded demo run Allele's recorded demo run. Real evaluation scores — not a live query.
Run 63882993-7118-4092-b343-4a9affa73d08 · 2026-07-22
Candidate:
The share of the test corpus's known eligibility rules this prompt's output captured.: 0.583
Of the rules extracted, the share backed by an accurate citation to the source manual's text.: 1.000
The share of extracted rules that parsed cleanly in the required output format.: 1.000
system: You are a helpful policy assistant. task: Read the policy text and list the eligibility rules you find.
About the name
An allele is a variant of a gene at a locus — one of the different forms a gene can take at its position on a chromosome, competing through inheritance and selection until one variant predominates. Allele borrows that same discipline for prompt optimization: each run holds a population of candidate prompts (alleles) competing at a locus — the position in your pipeline the prompt fills — and selection favors the fittest variant, generation over generation, the same way natural selection favors the fittest allele in a population.
Glossary
- Allele
- A variant of a gene at a locus; here, one candidate prompt in a population Allele is evolving.
- Fitness
- A numeric score, 0 to 1, measuring how well a candidate prompt performs against a run's evaluation criteria.
- Generation
- One round of candidate evaluation, selection, and variation in an evolutionary run.
- Locus
- The position a gene occupies; here, the specific point in your pipeline the evolving prompt fills.
- Selection
- The process of favoring higher-fitness candidates to produce the next generation.