GRPO without KL regularization for the SecCodePLT+ compliance experiment using
Qwen/Qwen2.5-Coder-3B-Instruct. This v3 run uses ReaL's program-analysis detector reward
with DAPO-style token loss and dynamic sampling. The reward is 0.5 * capability_test_fraction + 0.5 * max(0, 1 - 0.3 * detected_vulnerabilities).
Training used seed 42 and the official 655-example training split.
Evaluation used greedy decoding on all 164 official test examples.
Evaluation
Metric
Value
Mean reward
0.511832
Output format pass
97.56%
Syntax pass
97.56%
Capability pass
25.61%
Safety pass
56.10%
Detector clean
54.27%
Detector score
0.768293
Joint pass
17.07%
Limitations
This is a single-seed research checkpoint evaluated with the benchmark's
resource-bounded Python verifier. It is not a general guarantee of secure code.