Qwen announces Qwen3.8 at 2.4T parameters with an open-weight release promised

Sources: Qwen announcement (@Alibaba_Qwen), HN discussion
Summary: Alibaba's Qwen team announced on 2026-07-18 that Qwen3.8, a 2.4 trillion parameter model, is launching and will go open-weight soon, with a Qwen3.8-Max-Preview available for early testing on Alibaba's Token Plan, Qoder, and QoderWork surfaces. The team described it as one of the most powerful models available and positioned it as second only to Fable 5. The announcement carried no benchmarks with method, no license, no weight files, and no release date.
Comments: HN commenters read the post as a response to Moonshot's Kimi K3 (2.8T parameters, weights due 2026-07-27) and questioned what open-weight means before any weights ship.
Why it matters: A 2.4T-parameter open-weight release from Qwen would extend the trillion-parameter open-weight trend Kimi K3 opened this week and add pricing pressure on proprietary frontier models.
Follow-up: Watch for the weight files, the license, benchmarks with method, and a firm release date.