LLM Weekly — W34: Five frontier models in seven days, and the first agent-to-agent worm

Five frontier models shipped in seven days — three of them Chinese — while Anthropic's own researchers demonstrated that AI agents can infect each other with self-replicating instructions. Capability now ships weekly. The controls for it ship never.

A five-model week: DeepSeek V4-0813, Qwen 3.8 27B, GLM 5.3, Grok 4.6, LTX 2.5

Five frontier or near-frontier releases inside seven days, three of them from Chinese labs. Google added Gemini 3.7 Flash on top, and Nvidia shipped Nemotron 3.5 Lightning as an open model bundled with free routing software — a hardware company commoditising the layer above its own margin. The practical consequence: "which model" is drifting from a capability question into a procurement question, and the open-weight tier is now setting the release clock.

Sources: AI Search, Creators' AI.

Anthropic's annualised revenue reached $65 billion in July

Anthropic told investors its annualised run rate climbed to roughly $65B as of July. The company is separately reported to be in talks to acquire real-time video model startup Decart for around $6B. At that revenue base, Anthropic stops being a frontier lab with enterprise traction and becomes one of the fastest-scaling software businesses on record — which is precisely what makes a $6B tuck-in read as routine rather than reckless.

Source: CNBC.

Anthropic researchers demonstrated agent-to-agent infection

Researchers showed that AI agents can pass self-replicating instruction payloads to other agents through the same channels they use to collaborate — an agent worm, in effect. The demonstration was research-controlled, but the propagation mechanism is the one every multi-agent production system depends on. Prompt injection was a single-hop problem you could sanitise at the boundary. This is a network problem, and nobody currently sells the firewall. Note that MarkTechPost's zero-trust agent mesh, SAM, shipped the same week.

Sources: Creators' AI, MarkTechPost.

Cognition reportedly raising at $40B+ as Devin nears $1B annual revenue

Cognition is reported to be raising above a $40B valuation, with its Devin coding agent approaching $1B in annual revenue. Treat both figures as unconfirmed reporting. If they hold, autonomous software engineering becomes the first agent category to reach billion-dollar scale as a standalone product rather than a feature bolted onto an IDE — and every AI budget in 2027 gets benchmarked against that comparable.

Source: Creators' AI.

OpenAI previews 750 tokens/second — and quietly ends the GPT Store era

OpenAI is previewing an "Ultrafast" inference mode for GPT-5.6 Sol at up to 750 output tokens per second, fast enough that long responses stop needing a spinner and agent loops stop needing to hide. Separately, and reported rather than announced, OpenAI is blocking new custom GPT creation on personal accounts. Customisation is migrating from a consumer marketplace to a governed enterprise surface: Skills, Projects, ChatGPT Work.

Sources: AI Search, SQ Magazine via The Neuron.

The pattern worth carrying into next week: the binding constraint on agent deployment is no longer capability, it's containment. Watch for the first credible "agent segmentation" and "agent egress" products — because the demo that made them necessary came from the lab with the most to lose from them.

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