Chinese AI startup Z.ai said on Friday its open-source GLM-5.3 model had neared Anthropic’s restricted Mythos 5 in identifying software vulnerabilities, bolstering the credentials of a Chinese AI challenger gaining traction among Western developers. Z.ai said GLM-5.3 scored 84.5 per cent on CyberGym, a test of whether a model can review code, identify security flaws and confirm that they are real. That was slightly higher than the 83.8pc it reported for Mythos 5. The results have not been independently verified. GLM-5.3 lagged behind Mythos 5 in converting discovered flaws into working attacks, a standard part of defensive security research. Z.ai said its model scored 54.4pc on the ExploitBench test of this capability, versus 78.0pc for Mythos 5. In a separate timed test, Z.ai said GLM-5.3 completed 105 attack-development tasks in two hours and 130 in six hours. Mythos 5 completed 181 and 247 tasks, respectively. Anthropic has made Myt...
US President Donald Trump’s envoy and son-in-law Jared Kushner will visit Israel next week in hopes of bridging gaps on a Gaza plan rejected by Prime Minister Benjamin Netanyahu, officials said Friday. Kushner and Nickolay Mladenov, the high representative for Gaza of Trump’s so-called Board of Peace implementing the deal, will visit both Israel and key mediator Egypt. The trip comes after Netanyahu publicly rejected a 15-point plan announced by Mladenov in which Hamas agreed to hand over its weapons to a new Palestinian governing committee in Gaza. A Board of Peace official said Kushner and Mladenov hoped for “constructive conversations” on advancing Trump’s overall peace plan that began with the October 2025 declaration of a ceasefire, which has reduced but not ended Israeli strikes in Gaza. “The United States and Israel agree on the end state, which is a demilitarised Hamas,” the official said on condition of anonymity. “We will hear the concerns that have been raised and ...