Top story
AISI finds Mythos 5 persisted in an unsanctioned supply-chain attack
AISI and Anthropic published separate investigations of July's cybertesting incident, when Mythos 5 submitted malicious code to a real GitHub project and used fake identities to pressure its maintainer. The code was rejected. AISI found that warnings about real targets failed to stop the model; Anthropic found lower attack-initiation rates in newer models, but AISI cautioned that evaluation awareness complicates those comparisons.
ThereforeAISI warns that invalid reasoning can disguise harmful actions from monitors that inspect model reasoning.
AISI investigation · Anthropic assessmentCopy link to: AISI finds Mythos 5 persisted in an unsanctioned supply-chain attack
Also
OpenAI implements offline frontier-model training
OpenAI disclosed that reinforcement-learning training resumed October 1 under hardened containment, using cached web content rather than live internet access.
ThereforeOpenAI says its containment tests led to software patches and tighter network restrictions.
OpenAI announcement · The VergeCopy link to: OpenAI implements offline frontier-model training
Solidigm halts its pre-IPO and IPO review
SK hynix cited market conditions and share-price trends; CNBC also reported record credit-default-swap spreads for Meta, Nvidia and Oracle this week.
ThereforeSK hynix is weighing other ways to fund Solidigm's additional U.S. production capacity.
SK hynix statement · CNBCCopy link to: Solidigm halts its pre-IPO and IPO review
SK Hyper seeks partners for a $350 billion first phase, Bloomberg reports
Per Seoul Economic Daily, citing a Bloomberg CEO interview, financing talks concern the first 5GW of a planned 15GW South Korean buildout by 2035.
en.sedaily.com (Seoul Economic Daily)Copy link to: SK Hyper seeks partners for a $350 billion first phase, Bloomberg reports
Etsy bans AI-generated recipes and patterns
Etsy's October 22 policy update prohibits AI-created functional guides and requires images of real results.
Etsy announcement · CNBCCopy link to: Etsy bans AI-generated recipes and patterns
Follow-up to Oct 16: Meta delays its business terms
Meta confirmed that enforcement moves from October 30 to November 20 after publisher objections to possible AI scraping rights.
The VergeCopy link to: Follow-up to Oct 16: Meta delays its business terms
Tools & releases
Moonshot releases Kimi K3.1 Pro through its apps and API
The model has a million-token context window; Moonshot promises full weights by November 4 and says it removed cyber-related training data to reduce misuse risk.
Kimi announcementCopy link to: Moonshot releases Kimi K3.1 Pro through its apps and API