… This is built into the model through character training where we reward the model for producing responses that reflect a set of values and traits , and then reinforced through our system prompts , which carry explicit instructions on political neutrality into every conversation on Claude.ai. …
… We take considerable care here: on top of the regular challenges of maintaining open-source software, maintainers have been facing a deluge of low-quality, AI-generated bug reports. …
… In terms of positive traits, our Alignment team concluded that Opus 4.8 “reaches new highs on our measures of prosocial traits like supporting user autonomy and acting in the user’s best interest.” The assessment also showed Opus 4.8 to have rates of misaligned behavior such as deception or coopera… …
… With the supply of compute expanding rapidly, and with AI being used increasingly to augment the training of new AI models, we’re entering a period of great acceleration in AI capabilities. …
… But it was still unclear how much we should trust this result because it was possible that at least some of those historical CVEs were already in Claude’s training data. …
… Opus 4.7 is the first such model: its cyber capabilities are not as advanced as those of Mythos Preview indeed, during its training we experimented with efforts to differentially reduce these capabilities . …
… Claude Code’s reference devcontainer exists precisely so that the agent can run unattended, without per-action approvals. The model the agent consults. The mechanisms here include system prompts, classifiers, probes, and training modifications. …