OpenCode said today that GLM 5.3 Flash is free to use inside OpenCode. In the Console docs, the free tier shows up as its own model ID, glm-5.3-flash-free, with every column in the price table marked Free. The paid route, still listed as glm-5.3-flash at $0.15 per million input tokens and $0.50 per million output tokens, has not changed.
OpenCode describes the free tier as limited-time. It also says the provider follows a zero-retention policy and does not use your data for model training. The docs do not spell out a quota or an end date, so those details are still unclear from the official page alone.
That free slot is useful if you want to run agent loops or compare models without spending credits. DeepSeek V4.1 Flash Free sits on the same free list, with the same limited-time and zero-retention wording. You pick either one with /models after connecting an OpenCode Console key, or set something like opencode/glm-5.3-flash-free in config.
