Anonymous Ox Alpha opens a million-token context

OpenRouter is hosting the anonymous Ox Alpha model with a 1,048,576-token context window, multimodal text, image, and video input, and free access during a one-week preview, according to the launch report. Early fingerprinting links it to Zhipu AI’s unreleased GLM-5.3, with roughly 29 tokens per second reported and no formal benchmark or post-preview price yet. Builders working on long-context coding agents should treat it as a disposable test lane—not a dependency—until the provider and economics become public, much as the archive’s routing-layer analysis treats model gateways as strategic infrastructure.