LodeHQ
AI news for people who shipFree, by email

AI · Thursday, 2 July 2026 · Issue 38 · 11 stories

AI Agents Get Safety Rails and a Zero‑Token Breakthrough

Research

SEA Architecture Guarantees Safety for Self‑Modifying AI Agents

The SEA framework limits an agent’s self‑modifications to a tiny steering adapter and a versioned harness around a frozen base model. Each change must pass an anytime‑valid gate that issues an auditable certificate within a fixed error budget, preventing regressions. Experiments on a 52‑instance SWE‑bench subset show performance lifts of +4 to +5 points on strong base models while guaranteeing safety.

arxiv.org ↗1 min read at source

Three RL Tricks for Reasoning LMs Collapse to One Std‑Dev Dial

GRPO, Dr. GRPO, and DAPO, methods behind state‑of‑the‑art reasoning models, are mathematically the same operation: scaling updates by the group standard deviation of reward across sampled answers. This identity shows that the key learning signal is the disagreement‑based std‑dev dial, guiding which problems get the most training impact.

arxiv.org ↗2 min read at source

New Benchmark Shows Top LLMs Falter at Real Physics Reasoning

Introduces a four‑stage diagnostic using parallel physics worlds, including a counterfactual F=mv world, Aristotelian mechanics, and a decay‑world framework, to test if frontier models reason beyond pattern matching. Claude Opus 4.7, GPT‑5.5 and Gemini 3.1 Pro pass only 6‑out of 15 cases in the familiar worlds and none in the novel decay world, exposing a critical gap in genuine physics literacy.

arxiv.org ↗2 min read at source

RareDxR1 enables autonomous rare‑disease diagnosis without curated phenotypes

RareDxR1 is a reasoning‑centric LLM that extracts phenotypes directly from raw clinical notes and performs autonomous diagnostic reasoning, bypassing the need for human‑annotated phenotype databases. Its Reflection‑Enhanced Reasoning Sampling and dual‑level curriculum RL push accuracy past prior benchmarks, opening open‑domain rare‑disease diagnosis to broader clinical use.

arxiv.org ↗1 min read at source

Products & Industry

Anthropic rolls out Claude Science, an AI workbench to speed drug discovery

Anthropic released Claude Science, an AI workbench that unifies the fragmented tools and databases researchers use in drug discovery. The platform lets scientists run literature reviews, design experiments, generate reproducible code, figures, and even protein structures, all within a single interface on macOS, Linux or remote HPC. Targeting neglected diseases, it aims to cut early‑stage R&D timelines dramatically.

anthropic.com ↗7 min read at source

Policy & Safety

Tools & Open Source

Miles streamlines frontier‑scale LLM RL on PyTorch

Miles is an open‑source PyTorch‑native stack that stitches SGLang, Megatron‑LM and Ray to run reinforcement‑learning post‑training on massive LLMs, including MoE models. By handling high‑throughput rollouts, low‑precision sync and fault‑tolerant orchestration, it lets researchers scale RL pipelines without reinventing the distributed plumbing.

pytorch.org ↗9 min read at source

You’re caught up.

That was all 11 stories in the 2 July issue.