MiniMax M3 via the opencode provider (oc/minimax-m3-free) appeared blind:
image inputs didn't reach the model, while the same model in Cline could
see them. Verified empirically that MiniMax M3 on the opencode upstream IS
multimodal -- a base64 image is described correctly (it returns 403 only
for remote image URLs, which it doesn't accept).
Root cause: OmniRoute treated MiniMax M3 as a non-vision model in two
places, so when compression was active the image was replaced with a text
placeholder before dispatch:
- compression's modelSupportsVision() heuristic (lite.ts) only matched
gpt-4/4o/claude-3/gemini/vision -- minimax was absent -> replaceImageUrls
stripped the image.
- the opencode minimax-m3-free catalog entry lacked supportsVision, so the
combo vision-capability gate could also exclude/mishandle it.
Add 'minimax-m3' to the vision heuristic and supportsVision: true to the
opencode minimax-m3-free entry. TDD: a failing-then-passing test in
compression/lite.test.ts proves replaceImageUrls now keeps images for
minimax-m3 ids, plus a registry assertion mirroring the #2822 qwen test.
Reported-by: @mikmaneggahommie
1306e7b3f1