Benchmark Radar
AI BENCHMARK PROFILE

TLA+-Bench

General AICoding & Software Engineering

TLA+-Bench evaluates natural-language to TLA+ specification generation by executing each specification in the TLA+ model checker across the full reachable state space. The dataset includes 403 model-checked gold and 897 parse-only silver specifications, with multiple descriptions and difficulty labels.

Released
2026-07-26
Readiness
Paper only
Primary field
General AI

Why it matters

Prior benchmarks for formal specification generation grade by reference resemblance or parseability, not correctness. TLA+-Bench provides an execution-grounded oracle that measures whether generated specifications satisfy the required properties, offering a more reliable evaluation signal and revealing a range of correctness scores depending on grading choices.

Motivation

Large language models increasingly write TLA$^{+}$ formal specifications from natural-language descriptions, but progress is hard to measure: existing resources grade by resemblance to a reference or by whether the output parses, neither of which shows correctness.

Primary resources

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