Report frames AI virtual cells as emerging life-science infrastructure
A report published by MIT Technology Review China on 21 September 2026 defines an AI virtual cell as a multimodal, multi-scale neural model for representing and simulating cellular states and transitions, while noting that clinical validation remains unproven.
StepFun launches Step 5 Preview, a 600B MoE model with open weights slated for October
StepFun announced the Step 5 Preview on 20 September 2026, a sparsely‑gated MoE model with 600 billion parameters, a million‑token context window, and a planned open‑weight release on 15 October.
Claude Fable and Mythos 5.1: one model, two permission tiers
Anthropic released Claude Fable 5.1 and Mythos 5.1 on Tuesday — twin versions of its most advanced model, sharing the same underlying weights but different guardrail levels. Fable ships unrestricted; Mythos stays limited to registered cybersecurity and life-sciences partners.
Qwen3.8-Flash-Next: Alibaba previews the Qwen4 architecture
Alibaba's Qwen team released Qwen3.8-Flash-Next, a 125-billion-parameter MoE model with only 6 billion active per token, previewing the Qwen4 architecture at a fraction of the cost.
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