gemini-3.7-flash not auto detect when login Antigraviti via Oauth

[mhiharis123]

Client or integration

Direct HTTP client

Provider or upstream service

google antigravity

OpenCodex version

v2.14.2

Endpoint or capability

/v1/chat/completions

Current behaviour

After login to antigravity via oauth, list of model appears but gemini 3.7 flash is not there.
I add custom model ID like 'google-antigravity/gemini-3.7-flash' but when used in zcode or codex, below error displayed.

Expected behaviour

The model should be connected as gemini 3.6 flash model

Minimal redacted request or reproduction

N/A

Actual response or error

N/A

Upstream documentation

N/A

Suggested mapping or implementation notes

No response

Additional context and attachments

No response

Checks

• I searched existing provider and compatibility issues.
• The request and response were redacted.
• The expected behaviour is based on an upstream specification or a concrete client requirement.

[github-actions]

Issue closed: insufficient detail

Thanks for taking the time to submit this issue. It was closed automatically because the structured report is missing information needed to evaluate or reproduce it.

• Both the request/reproduction and the actual response/error are absent.
• Upstream documentation is empty without stating that no public specification exists.

Please edit the issue to add:

• Include at least a minimal redacted request or the actual error output.
• Add a URL to the provider specification, or state that no public spec exists.

See the Contributing guide for details.

Once the report passes the automated checks, it will be reopened automatically unless a maintainer has changed its state.

[coderabbitai]

🔗 Related PRs

#355 - feat(google): enable Gemini inline image output [merged]

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