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AI Research Radar

Monday, April 27: 2 frontier papers out of 136 read.

2 frontier12 cleared136 papers read

Frontier

Papers rated as moving the field

How we choose

Removing Sandbagging in LLMs by Training with Weak Supervision

“We find that training with weak supervision can reliably elicit sandbagging models when supervised fine-tuning (SFT) and reinforcement learning (RL) are combined: SFT on weak demonstrations breaks the sandbagging behavior, enabling RL to then fully elicit performance.”

The authors, in the abstract

AnthropicarXivPDF

RedVLA

“Experiments on six representative VLA models show that RedVLA uncovers diverse unsafe behaviors and achieves the ASR up to 95.5% within 10 optimization iterations.”

This week in research

Apr 21–27: 33 cleared, 3 frontier

The week’s papers have not been sorted into fields yet.

Models under test

Papers this week that name the model

  1. Claude Sonnet 4.52
  2. GPT-5.41
  3. Llama 3.1 8B Instruct1
  4. GPT-51
  5. DeepSeek-V3.21
  6. Gemini 3.1 Pro1
  7. GPT-5.1-Codex1
  8. Mistral Large1

Labs publishing

Papers this week with an author at the lab

  1. Google3
  2. Microsoft3
  3. Alibaba1
  4. Anthropic1
  5. IBM1

Also cleared

10 papers