Flip News — open-weight models news https://flipnews.co.uk/topics/open-weight-models/ The latest Flip News stories on open-weight models. en-GB Wed, 30 Sep 2026 16:02:47 GMT Anthropic warns Chinese open-weight model GLM-5.3 has frontier-level hacking ability https://flipnews.co.uk/technology/anthropic-glm-5-3-cyberattack-warning/ https://flipnews.co.uk/technology/anthropic-glm-5-3-cyberattack-warning/ Wed, 30 Sep 2026 00:00:00 GMT Anthropic says Z.ai's open-weight GLM-5.3 nearly matches its vetted-only Claude Mythos Preview at building exploits, with safeguards that can be bypassed up to 100% of the time. James Calloway ai anthropic cybersecurity china open-weight models The Decoder