AI/ML●●Solid
EvalLens – Open-source tool to evaluate structured LLM outputs
Schema conformance checks beat generic text evals for JSON-heavy LLM pipelines.
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simonrendon
102mo ago
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GitHub Repository
RAIF — Repairable AI Interchange Format: a wire format for LLM-emitted JSON that round-trips losslessly, self-repairs syntax errors, and costs fewer tokens than JSON.
4 starsTypeScript
RAIF – an experimental structured I/O format for LLMs
by truehazker·Jun 14, 2026·2 points·1 comment
AI Analysis
●●SolidBig BrainSolve My Problem
Self-repairing LLM output format that beats JSON on tokens and recovery.
Strengths
- •Inverts the repair assumption: format designed for model failures, not external patching.
- •14% token savings measured across 18-shape corpus with real tokenizer benchmarks.
- •5,000-seed fuzz testing proves byte-exact lossless round-trip to JSON.
Weaknesses
- •Structured LLM output is crowded: JSON mode, Instructor, Outlines already exist.
- •Requires model fine-tuning or prompt engineering to adopt the format.
Category
Target Audience
Developers building LLM applications with structured outputs
Similar To
Instructor · Outlines · jsonrepair
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