Ollama custom provider error : agent configured model is not valid

[jmtemmos]

Description

Any agents using ollama custom models raises a message : "agent configured model is not valid"

Then, if using it despite the warning, the following message is displayed:

ProviderModelNotFoundError: ProviderModelNotFoundError

subagents calls / tasks are not called.

The whole multi-agent system is consequently broken.

Of course, it was previously working with the same config.

Please help :)

Plugins

"mohak34/opencode-notifier@latest", "opencode-ignore", "opencode-beads", "@franlol/[email protected]", "[email protected]", "[email protected]", "@tarquinen/opencode-dcp@latest"

OpenCode version

1.1.23

Steps to reproduce

1. open opencode
2. select with tab an agent which model is based on custom ollama

Screenshot and/or share link

No response

Operating System

manjaro linux

Terminal

kitty

[github-actions[bot]]

This issue might be a duplicate of existing issues. Please check:

• #7083: Using local Ollama models doesnt return any results (similar Ollama model configuration issues)
• #5623: Custom subagents with explicit model config throw ProviderModelNotFoundError (agent model configuration validation)
• #7958: ProviderModelNotFoundError for custom provider in GitHub Action (custom provider model validation failures)
• #5674: Custom OpenAI-compatible provider options not being passed to API calls (custom provider configuration issues)
• #6691: ProviderModelNotFoundError: minimax/MiniMax-M2.1 (similar model validation errors in different context)

Feel free to ignore if none of these address your specific case.

[jmtemmos]

Yes probably related to them. It seems to be a problem with a wide range of side effects. still not working in 1.1.125

[jmtemmos]

Ok. Problem solved.

all of a sudden, since probably version 1.1.123, it appears that in agent markdown conf:

model: ollama/gpt-oss:20b-opencode

does not work anymore.

Now doubles quotes are required. So replacing by

model: "ollama/gpt-oss:20b-opencode"

fixed the problem for me :)

Had to do it in all agent markdown files.

Hope it will help