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Support custom metadata labels for partner models on Vertex AI

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#6,793 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
48/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Quiet
Tech stack
gcp, python
Domain
ai, cloud

Research direction

Start by tracing the existing labels field through the Vertex AI partner model API-call path. Read the linked Labels documentation and compare the current behavior with Anthropic partner-model requests. Done means custom labels are accepted for those calls and appear in Cloud Billing reports, with coverage for the affected request path.

Written by the indexing model from the issue text.

Description

api: vertex-ai

Is your feature request related to a problem? Please describe.
Vertex AI's custom metadata labels only work for Google models. We need billing labels on partner model calls (Anthropic) for cost attribution and there's no supported way to do it.

Describe the solution you'd like
Extend the existing labels field to work with partner model API calls so they appear in Cloud Billing reports.

Describe alternatives you've considered
Client-side HTTP intercept to manually track token usage, but this doesn't integrate with GCP billing dashboards.

Additional context
Labels docs: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/multimodal/add-labels-to-api-calls
Community thread: https://community.latenode.com/t/adding-custom-metadata-labels-to-anthropic-model-requests-on-gcp-vertex-ai/37152/5

Dominant language
Python
Stars
907
Forks
467
Avg merge
1d 8h
Merged PRs (30d)
40

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