Topic: "sleep-phase"

May 26
not much happened today
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qwen-3.7 claude-opus-4.6 gpt-5.5 mythos quest-2b-35b deepseek google-deepmind langchain-ai anthropic openai alibaba sakana-ai stanford oxford ai2 harness-engineering agent-infrastructure coding-benchmarks security-guidance long-horizon-memory context-compression sleep-phase math-problem-solving fact-seeking citation-grounding science-evaluation sebastienbubeck
Harness engineering is emerging as the key differentiator for coding agents, emphasizing the stack of model + harness + eval loop over just stronger base models. DeepSeek is building a harness team to optimize interaction and verification loops, while Google's Gemini Managed Agents and LangChain formalize harness concepts like context governance and dynamic skill routing. New benchmarks like DeepSWE align closely with real developer experience, with Qwen3.7 Max and Claude Opus 4.6 showing strong agentic coding performance. Anthropic introduced a security-guidance plugin for Claude Code reducing security PR comments by 30–40%, and OpenAI highlighted GPT-5.5 in Codex for improved document parsing. In research, Claude Mythos solved Erdős problem #90 with a cleaner proof path than previous models, showing latent capabilities unlocked by appropriate harnesses. The paper "Language Models Need Sleep" proposes a sleep-like consolidation phase for long-horizon memory, addressing bottlenecks in persistent context storage. Open research agents like QUEST (2B–35B parameters) advance long-horizon fact-seeking and citation grounding, while the CUSP benchmark from Sakana/Stanford/Oxford/AI2 evaluates current model capabilities in science.