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Anthropic appears to have started a fresh round of red teaming on a new internal build. The company is set to host its Code with Claude developer conference in San Francisco on May 6. The timing suggests that the model is being hardened ahead of an announcement timed to the event. The red team round is consistent with the company's responsible scaling policy, which calls for jailbreak probes and constitutional classifier stress tests before any frontier-class deployment.

Harness engineering is where engineers focus more on building the environment and “harnesses” (like OpenAI's Codex) around AI agents, so that they can build software without manually written code. OpenAI's approach involved making applications legible for agents to query runtime states and structuring documentation with progressive disclosure using an AGENTS.md table of contents. To manage high agent throughput, OpenAI adopted a merge philosophy prioritizing fast corrections over perfect prevention, and continuously addressed technical debt through "golden principles" enforced by background cleanup agents.

Apple's rumored 20th anniversary iPhone in 2027 is now expected to be a major redesign of the iPhone Pro and Pro Max models rather than a separate standalone device. The new design could feature a bezel-free quad-curved display and under-display camera technology, signaling a shift in Apple's biggest innovations toward its mainstream Pro lineup instead of introducing a one-off special edition.