---
license: apache-2.0
base_model: Qwen/Qwen2.5-Coder-3B-Instruct
tags: [text-to-sql, self-play, grpo, sql-zero]
---
# sql-zero-3b-challenger-iter2

Challenger 3B iter2 c/ repetition penalty lambda=0.5. Dup 66%->57%; gen 36k pares.

Parte do projeto **SQL-Zero** (self-play zero-anotacao para Text-to-SQL, adaptacao do Dr. Zero).
Protocolo de avaliacao: greedy@1, schema completo (DDL+3 rows), execution accuracy.
Treinado com verl (GRPO); reward de execucao 3-tier (1.0/0.1/0.0).