GenAI-accelerated TLA+ challenge

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The TLA+ Foundation, in collaboration with NVIDIA, is pleased to announce the GenAI-accelerated TLA+ challenge—an open call for submissions that explore the intersection of TLA+ and generative AI.
This initiative aims to foster practical and innovative tooling, workflows, and approaches that bring the capabilities of generative AI and LLMs to TLA+. Participants are invited to develop engineering-oriented solutions that advance the usability, accessibility, and automation of formal specification through the integration of GenAI.

Awards

Example Project Areas

Participants may submit work including, but not limited to:

  • Intelligent refactoring of TLA+ specifications (e.g., managing UNCHANGED correctly when adding variables)
  • LLM-enhanced linters, formatters, or other development tools
  • LLM-driven tools for automated grading in education
  • Visualizations of specifications or execution traces
  • Generation of type annotations for tools like Apalache
  • Synthesis of inductive invariant candidates, validated via TLC or Apalache
  • Synthesis of TLAPS proofs
  • Synthesis of entire specifications from source code and design documents

Evaluation

Submissions will be judged by the TLA+ Specification Language Committee (SLC)

The Jury will evaluate submissions based on their functionality, relevance to the TLA+ ecosystem, and the thoughtful use of AI. Submissions must be reproducible by the Jury. Passive formats, such as videos alone, are not sufficient. However, the Jury does not require a fully polished product—a prototype is sufficient. All submissions must be released under the MIT license, and any underlying AI models must be publicly available.

The use of GenAI/LLMs is explicitly encouraged, provided that any AI-generated content—such as specs, invariants, visualizations, … —is checked using some form of verification such as the TLA+ tools.

Participation Criteria

Eligible participants must meet the following:

Submission Timeline & Announcement

Submissions will open alongside this announcement. The deadline to submit entries for the challenge is two months from the announcement date on 07/03/2025. Submissions must be sent to genai@tlapl.us. The jury will select the winner one month after the submission period closes. We welcome innovative, technically robust, and practically valuable contributions that explore and expand the potential of GenAI within the context of TLA+.

For longer-term or foundational engineering and research efforts related to TLA+, we encourage you to explore the TLA+ grant program.