AIHubMix
qwen3.8-max-preview is a hosted preview on Qwen Cloud's Token Plan, with the exact model ID confirmed by the Qwen team and a 1M-token context window per the Qwen Cloud model table. The vendor-reported total is 2.4T parameters, though architecture and active parameters are not publicly documented, and no downloadable weights exist as of the verification date. The July 20, 2026 follow-up build emphasized gains in web frontend work, but those claims remain vendor-reported without a public benchmark table or reproducible evaluation. Thinking, function calling, and built-in tools are listed as supported; structured output is not yet listed. A formal Qwen3.8 open-weight release remains planned but unscheduled.