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Abliteration.ai provides access to modified versions of open-weight models after removing refusal mechanisms, claiming this enables cybersecurity teams to simulate attackers’ behavior. At the same time, however, the service opens a wider door to using these models for harmful activities, amid the absence of a mechanism to verify customers’ identities and incomplete accountability controls.
Tencent announced the release of the open-source Hy4 Preview model, with a context window exceeding one million tokens and the ability to activate 49 billion parameters per operation. The company says the model outperformed GLM-5.3 and Kimi K3 in an internal blind test, while the results remain limited to Tencent’s evaluation and the model is an initial release.