AlexVav01/lean4-autoformalizer-sft

TEXT GENERATIONConcurrency Cost:1Model Size:7.6BQuant:FP8Ctx Length:32kTool Calling:SupportedPublished:Jun 20, 2026Architecture:Transformer Cold

The AlexVav01/lean4-autoformalizer-sft is a 7.6 billion parameter language model with a 32768 token context length. This model is fine-tuned for autoformalization tasks, specifically converting natural language into Lean 4 formal proofs. Its primary strength lies in assisting with formal verification and mathematical theorem proving within the Lean 4 ecosystem.

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Overview

The AlexVav01/lean4-autoformalizer-sft is a 7.6 billion parameter language model designed for specialized autoformalization tasks. With a substantial context length of 32768 tokens, it is equipped to handle complex inputs for formal reasoning. This model is specifically fine-tuned to translate natural language descriptions into formal proofs or statements compatible with the Lean 4 proof assistant.

Key Capabilities

  • Natural Language to Lean 4 Translation: Converts informal mathematical or logical statements into formal Lean 4 code.
  • High Context Understanding: Utilizes a 32768 token context window to process detailed problem descriptions and generate relevant formalizations.
  • Specialized for Formal Verification: Optimized for tasks within the Lean 4 ecosystem, aiding in the creation of machine-checkable proofs.

Good For

  • Lean 4 Developers: Assisting mathematicians and computer scientists working with the Lean 4 proof assistant.
  • Formal Verification: Automating parts of the formalization process for theorems and definitions.
  • Educational Tools: Helping users learn how to formalize concepts in Lean 4 by providing examples and suggestions.