opus not able to read images with read tool #5056

Activity

1. SirStisx

   added

   bugSomething isn't workingSomething isn't working

   on Dec 4, 2025
2. modelnova-ai commented on Dec 4, 2025

   

   modelnova-ai

   on Dec 4, 2025

   Last edited by modelnova-ai

   More actions

   Description

   When told to read a spesific image file the Read tool says "Failed to read image: /tmp/SPA-2358-image-1.png, model may not be able to read images" using opus 4.5

   pasting same image to chat or dragging it into chat works.

   OpenCode version

   132

   Steps to reproduce

   1. have a image in a folder /tmp on mac in this case
   2. tell the model to read that image with the read tool.

   Screenshot and/or share link

   No response

   Operating System

   No response

   Terminal

   ghosty

   If you use a custom model provider, you need to add the image modalities in your config. Otherwise the Read tool cannot read images.

   "models": {
     "claude-opus-4.5": {
       "id": "claude-opus-4.5",
       "modalities": {
         "input": ["text", "image"],
         "output": ["text", "image"]
       }
     }
   }
   

   After adding this, image reading will work.
3. rekram1-node

   self-assigned this

   on Dec 4, 2025
4. rekram1-node commented on Dec 4, 2025

   

   rekram1-node

   on Dec 4, 2025

   Contributor

   More actions

   fixed in next release, there was a regression going to add more tests:
   350a322
5. rekram1-node

   closed this as completedon Dec 4, 2025