Kimi K3 secured second place on the in-house Vibe Code Bench with an 85% score and demonstrated top-tier cybersecurity capabilities in independent evaluations, positioning the 2.8 trillion-parameter model as a leading open-weight frontier system.

The Vibe Code Bench measures end-to-end task completion, while separate internal security tests align the model's performance with major U.S. rivals. The results expand earlier coverage of the model's launch, adding verified domain-specific benchmarks to the ongoing competition in large language models.