Astra improved Qwen’s math score by editing its weights
Researchers published early experiments suggesting GPT-6 Astra can read and edit neural-network weights without gradients. They report raising Qwen3.5-0.8B’s MATH-500 score from 7.9% to 48.1% by changing 0.016% of its weights; the gain was limited to removing repetitive loops that obscured existing abilities.
Researchers say Astra raised Qwen3.5-0.8B’s MATH-500 score from 7.9% to 48.1% by editing model weights without gradients.
02POLICY & LAW
China proposes export controls on AI technologies
China’s commerce and science ministries proposed adding 40 technologies to an export-prohibition or restriction list, 23 of them AI-related. The draft covers model weights above certain thresholds and some agent technologies; a registration requirement is already in force before the catalog is finalized.
China’s announcement proposes draft restrictions on advanced model weights and agent technologies, while a registration requirement for some technology exports takes effect immediately.
03RESEARCH
Poisoned pretraining data can backdoor AI agents
The researchers trained Qwen3’s 0.6B, 1.7B, and 4B models from scratch, then converted them into CLI agents through a clean process. Poisoning 0.1% of the pretraining data produced a backdoor that runs an attacker’s command when triggered; the 4B model’s success rate was about 92%.
Researchers say poisoned pretraining data can create a CLI agent that runs commands chosen by an attacker when triggered.
04INDUSTRY
42AI launches behavior-prediction model and discloses $62.5 million
Israeli company 42AI introduced a behavioral world model that it says predicts people’s likelihood of making decisions under different conditions, and disclosed $62.5 million in seed funding. The CEO said the money came from the founders and Infinity Group over three years; the 98% success claim does not mean individual transactions were predicted correctly.
42AI introduced a model intended to predict individual behavior and disclosed $62.5 million in seed funding.
05PRODUCTS
Grok Bot users’ weekly limits filled unexpectedly
Elon Musk said the cost of offering Grok Bot was unsustainable relative to its revenue, confirming that users’ weekly limits filling unexpectedly was not a malfunction. Some users reported their limits running out despite not using them; how subscribers’ limits would be affected going forward was not explained.
Elon Musk confirmed Grok Bot’s high service costs; some users’ weekly usage limits filled unexpectedly.
06SECURITY
OpenAI raises rewards for security vulnerability reports
OpenAI said it increased the midpoint of reward ranges for medium-, high-, and critical-severity findings by an average of more than fourfold. Critical vulnerabilities in ChatGPT, Codex, or the API Platform can earn up to $30,000; exceptional findings may receive up to $172,000 with bonuses.
OpenAI is increasing security bug bounty rewards and offering researchers bonuses for report quality and commitment.
✓
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