Can't use custom provider

Description

I don't know im stupid or this is a bug. This is my provider config:

"provider": {
        "custom_openai": {
                  "npm": "@ai-sdk/openai-compatible",
                  "name": "Custom OpenAI Compatible",
                 "options": {
                        "baseURL": "{env:OPENAI_API_BASE}",
                        "apiKey": "{env:OPENAI_API_KEY}"
                 }
        }
}

Full config is here.

When i run opencode normaly it automaticaly uses normal openai provider. i think because of the environment variable names. But i cant see my provider on /connect menu. I also tried from shell:

$ opencode run -m custom_openai/glm-5.2 "test" --print-logs
timestamp=2026-08-07T16:53:15.114Z level=INFO run=39eeb06f message="creating instance" directory=/home/melon
timestamp=2026-08-07T16:53:15.127Z level=INFO run=39eeb06f message=fromDirectory directory=/home/melon
timestamp=2026-08-07T16:53:15.228Z level=INFO run=39eeb06f message=bootstrapping directory=/home/melon
timestamp=2026-08-07T16:53:15.258Z level=INFO run=39eeb06f message=loading path=/home/melon/.config/opencode/config.json
timestamp=2026-08-07T16:53:15.295Z level=INFO run=39eeb06f message=loading path=/home/melon/.config/opencode/opencode.json
timestamp=2026-08-07T16:53:15.318Z level=INFO run=39eeb06f message=loading path=/home/melon/.config/opencode/opencode.jsonc
timestamp=2026-08-07T16:53:16.135Z level=INFO run=39eeb06f message="all LSPs are disabled"
timestamp=2026-08-07T16:53:16.144Z level=INFO run=39eeb06f message="all formatters are disabled"
timestamp=2026-08-07T16:53:16.145Z level=INFO run=39eeb06f message=init
timestamp=2026-08-07T16:53:17.202Z level=INFO run=39eeb06f message=created id=ses_022db4eeeffexfWGxjmWmgxRck slug=calm-lagoon version=1.18.14 projectID=global directory=/home/melon path=home/melon workspaceID=undefined parentID=undefined title="New session - 2026-08-07T16:53:17.202Z" agent=undefined model=undefined metadata=undefined permission="[{\"permission\":\"question\",\"pattern\":\"*\",\"action\":\"deny\"},{\"permission\":\"plan_enter\",\"pattern\":\"*\",\"action\":\"deny\"},{\"permission\":\"plan_exit\",\"pattern\":\"*\",\"action\":\"deny\"}]" cost=0 tokens.input=0 tokens.output=0 tokens.reasoning=0 tokens.cache.read=0 tokens.cache.write=0 time.created=1786121597202 time.updated=1786121597202
timestamp=2026-08-07T16:53:17.278Z level=INFO run=39eeb06f message="event connected"
timestamp=2026-08-07T16:53:20.653Z level=ERROR run=39eeb06f message="share subscriber failed" type=message.updated cause="Cause([Fail(ProviderModelNotFoundError: Model not found: custom_openai/glm-5.2.)])"
timestamp=2026-08-07T16:53:20.727Z level=INFO run=39eeb06f message=loop session.id=ses_022db4eeeffexfWGxjmWmgxRck step=0
timestamp=2026-08-07T16:53:20.757Z level=ERROR run=39eeb06f message=failed ref=err_baef6656 error="ProviderModelNotFoundError: Model not found: custom_openai/glm-5.2." cause="ProviderModelNotFoundError: Model not found: custom_openai/glm-5.2.\n    at <anonymous> (/$bunfs/root/chunk-9nhdzdbs.js:439:89847)\n    at SessionPrompt.getModel (/$bunfs/root/chunk-nfqtvcwx.js:1085:11482)\n    at SessionPrompt.getModel (definition) (/$bunfs/root/chunk-nfqtvcwx.js:1085:908)\n    at SessionPrompt.run (/$bunfs/root/chunk-nfqtvcwx.js:1085:15298)\n    at SessionPrompt.run (definition) (/$bunfs/root/chunk-nfqtvcwx.js:1085:10498)\n    at SessionRunState.ensureRunning (/$bunfs/root/chunk-nfqtvcwx.js:1085:15267)\n    at SessionRunState.ensureRunning (definition) (/$bunfs/root/chunk-nfqtvcwx.js:2:8179)\n    at SessionPrompt.loop (/$bunfs/root/chunk-nfqtvcwx.js:1085:10220)\n    at SessionPrompt.loop (definition) (/$bunfs/root/chunk-nfqtvcwx.js:1085:15203)\n    at SessionPrompt.prompt (/$bunfs/root/chunk-ahr5v08n.js:4:13220)\n    at SessionPrompt.prompt (definition) (/$bunfs/root/chunk-nfqtvcwx.js:1085:9838)"
Error: {
  "name": "UnknownError",
  "data": {
    "message": "Unexpected server error. Check server logs for details.",
    "ref": "err_baef6656"
  }
}
timestamp=2026-08-07T16:53:20.765Z level=INFO run=39eeb06f message="disposing instance" directory=/home/melon

And with this command:

$opencode models --provider custom_openai --print-logs
timestamp=2026-08-07T16:54:48.319Z level=INFO run=9031b0cb message="creating instance" directory=/home/melon
timestamp=2026-08-07T16:54:48.329Z level=INFO run=9031b0cb message=fromDirectory directory=/home/melon
timestamp=2026-08-07T16:54:48.417Z level=INFO run=9031b0cb message=bootstrapping directory=/home/melon
timestamp=2026-08-07T16:54:48.478Z level=INFO run=9031b0cb message=loading path=/home/melon/.config/opencode/config.json
timestamp=2026-08-07T16:54:48.523Z level=INFO run=9031b0cb message=loading path=/home/melon/.config/opencode/opencode.json
timestamp=2026-08-07T16:54:48.549Z level=INFO run=9031b0cb message=loading path=/home/melon/.config/opencode/opencode.jsonc
timestamp=2026-08-07T16:54:49.235Z level=INFO run=9031b0cb message="all LSPs are disabled"
timestamp=2026-08-07T16:54:49.243Z level=INFO run=9031b0cb message="all formatters are disabled"
timestamp=2026-08-07T16:54:49.243Z level=INFO run=9031b0cb message=init
timestamp=2026-08-07T16:54:52.183Z level=INFO run=9031b0cb message="disposing instance" directory=/home/melon
Error: Provider not found: custom_openai

I also tried manualy creating ~/.local/share/opencode/auth.json, and its not working like opencode auth login --provider custom_openai command.

Plugins

No plugins

OpenCode version

1.18.14 (from pacman)

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

Arch Linux (Linux 7.1.5-arch1-2)

Terminal

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