Qwen 4 is not announced, but Qwen Code already lists qwen4 model ids

An X account reports that Qwen Code v0.26.3, released on October 28, includes a change (pull request #15762 in the official QwenLM/qwen-code repository) that treats every model whose id starts with qwen4 as having a 1M-token context by default. According to that account, the tests name qwen4-max, qwen4-plus, qwen4-coder-plus, the dated qwen4-max-2026-10-01 and qwen4.5-max. The account's post links the pull request and shows a screenshot.

Alibaba has not announced Qwen 4, a release date, pricing or context sizes. Separately, users testing anonymous Arena checkpoints named "Kalmia" and "Kerria" attribute them to Qwen 4; that attribution comes from the testers, not from Alibaba.