[HUGGINGFACE]score: 0.63
CoSPlay Jointly Improves Code and Unit Tests via Ground-Truth-Free Self-Play
May 21, 2026
CoSPlay is a training-free, ground-truth-free test-time framework that uses cooperative self-play to jointly refine code candidates and self-generated unit tests, addressing the noise and coupling problems in GT-free TTS.
paper
HOW THIS AFFECTS YOU
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builderYou can apply CoSPlay at inference to improve code generation quality without ground-truth unit tests, reducing dependency on labeled test suites.
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researcherThe joint code-UT improvement loop addresses a fundamental circular dependency in GT-free test-time scaling that prior methods ignored.