Llm-Evaluation on René Zander | AI Automation Consultanthttps://renezander.com/tags/llm-evaluation/Recent content in Llm-Evaluation on René Zander | AI Automation ConsultantHugoenThu, 11 Jun 2026 10:00:00 +0000AI Agent Model Evaluation: 5 Tests Before the Night Shifthttps://renezander.com/blog/ai-agent-model-evaluation/Thu, 11 Jun 2026 10:00:00 +0000https://renezander.com/blog/ai-agent-model-evaluation/<p>A model upgrade used to be good news for anyone running agents overnight.</p> <p>Now the next model arrives before the last one has finished probation.</p> <p>Anthropic released <a href="https://www.anthropic.com/news/claude-opus-4-8">Opus 4.8 on May 28</a>. Twelve days later, <a href="https://www.anthropic.com/news/claude-fable-5-mythos-5">Fable 5 arrived</a> with longer autonomous runs and another page of benchmark wins.</p> <p>In between, GitHub made cloud agents <a href="https://github.blog/changelog/2026-06-02-schedule-and-automate-tasks-with-copilot-cloud-agent/">wake up on schedules and repository events</a>, then exposed <a href="https://github.blog/changelog/2026-06-04-agent-tasks-rest-api-now-available-for-copilot-pro-pro-and-max/">agent tasks through a REST API</a>.</p> <p>The night shift is getting easier to hire.</p>