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Incorrect model IDs for Vertex Anthropic #9565
Description
Description
The model IDs currently have the date claude-haiku-4-5@20251001 but if you check Vertex examples, the date is not needed to make API calls. I tried in OpenCode and it fails with the date, it should be removed. Before opening a PR I'd like to make sure I'm not missing anything.
ENDPOINT="aiplatform.googleapis.com"
LOCATION_ID="global"
PROJECT_ID="foo"
MODEL_ID="claude-haiku-4-5"
METHOD="streamRawPredict"
Plugins
No response
OpenCode version
1.1.25
Steps to reproduce
With these settings, spent is always 0
"google-vertex-anthropic":{
"name": "Anthropic",
"whitelist": ["claude-sonnet-4-5", "claude-haiku-4-5"],
"models": {
"claude-sonnet-4-5": {
"name": "Claude Sonnet 4.5",
},
"claude-haiku-4-5": {
"name": "Claude Haiku 4.5",
},
}
},
Adding the date suffix to match what's in models.dev, OpenCode can't find the model
"google-vertex-anthropic":{
"name": "Anthropic",
"whitelist": ["claude-sonnet-4-5@20250929", "claude-haiku-4-5@20251001"],
"models": {
"claude-sonnet-4-5@20250929": {
"name": "Claude Sonnet 4.5",
},
"claude-haiku-4-5@20251001": {
"name": "Claude Haiku 4.5",
},
}
},
you get this error
Screenshot and/or share link
No response
Operating System
macOS 15.7.1
Terminal
iTerm2
Reacted by MinmoTech
Activity
github-actions commentedon Jan 20, 2026
This issue might be a duplicate of existing issues or related to similar configuration problems. Please check:
While not an exact duplicate, #7514 indicates there are known configuration issues with the google-vertex-anthropic provider that might be related to the model ID format problem described here.
github-actions commentedon Mar 26, 2026
To stay organized issues are automatically closed after 90 days of no activity. If the issue is still relevant please open a new one.