Antigravity Provider - Gemini 3.7 flash not working

[izaanishaq]

Client or integration

Codex App

Area

Proxy and routing

Summary

Client or integration

Codex App

Area

Proxy and routing

Summary

Reconnecting /5

unexpected status 404 Not Found: Provider error 404: Antigravity invalid request: Requested entity was not found., url: http://127.0.0.1:10100/v1/responses

unexpected status 404 Not Found: Provider error 404: Antigravity invalid request: Requested entity was not found., url: http://127.0.0.1:10100/v1/responses

Reproduction

selecting model gemini 3.7 flash medium/high and chatting.

Version

2.17.0

Operating system

Windows 11 24H2

Provider and model

google-antigravity/gemini-3.7-flash

Logs or error output

{
  "requestId": "ocx-mssxs9sw-7",
  "timestamp": 1786711314848,
  "model": "gemini-3.7-flash",
  "provider": "google-antigravity",
  "admissionKind": "loopback",
  "inboundProtocol": "responses",
  "conversationId": "a432ba50f40f3dd5801ac25ccc03f60c",
  "requestedModel": "google-antigravity/gemini-3.7-flash",
  "requestedEffort": "medium",
  "configuredServiceTier": "fast",
  "configuredSpeedLabel": "fast",
  "status": 404,
  "durationMs": 520,
  "errorCode": "http_404",
  "closeReason": "non_stream",
  "upstreamError": "Provider error 404: Antigravity invalid request: Requested entity was not found.",
  "usageStatus": "unreported",
  "attempts": [
    {
      "ordinal": 1,
      "provider": "google-antigravity",
      "model": "gemini-3.7-flash",
      "adapter": "google",
      "status": 404,
      "durationMs": 498,
      "sendCount": 1,
      "recoveryKinds": [],
      "usageStatus": "unreported",
      "requestedEffort": "medium",
      "errorCode": "http_404",
      "displayMetrics": {
        "tokPerSecond": {
          "kind": "unavailable",
          "reason": "usage_missing"
        },
        "cost": {
          "kind": "unavailable",
          "reason": "usage_missing"
        }
      }
    }
  ],
  "routeDecision": {
    "version": 1,
    "decisionId": "0755037b8f11",
    "createdAt": 1786711314857,
    "requestedModel": "google-antigravity/gemini-3.7-flash",
    "routeKind": "explicit-provider",
    "requirements": [],
    "candidates": [
      {
        "provider": "google-antigravity",
        "model": "gemini-3.7-flash",
        "eligible": true,
        "exclusions": []
      }
    ],
    "selected": {
      "candidateIndex": 0,
      "provider": "google-antigravity",
      "model": "gemini-3.7-flash",
      "reason": "explicit-provider-namespace"
    }
  },
  "displayMetrics": {
    "tokPerSecond": {
      "kind": "unavailable",
      "reason": "usage_missing"
    },
    "cost": {
      "kind": "unavailable",
      "reason": "combo_attempt_unavailable"
    }
  }
}

Screenshots and supporting files

No response

Redacted configuration

Checks

• I searched existing issues and documentation.
• I removed secrets, tokens, account details, request credentials, and personal data.

404Not found

The requested route, model, account, or upstream resource was not found. Verify the model name and opencodex provider configuration.

Basic information
Time
8/14/2026 5:41:54 PM
Request
ocx-mssxs9sw-7
Copy request ID
Conversation
a432ba50f40f3dd5801ac25ccc03f60c
Filter logs
Model
gemini-3.7-flash
Provider
Google Antigravity
Effort
medium
Error
http_404
Upstream reason
Provider error 404: Antigravity invalid request: Requested entity was not found.
Route decision
Route kind
explicit-provider
Selected
google-antigravity/gemini-3.7-flash — explicit-provider-namespace
Candidates
google-antigravity/gemini-3.7-flash ✓

Reproduction

selecting model gemini 3.7 flash medium/high and chatting.

Version

2.18.0

Operating system

Windows 11 24H2

Provider and model

google-antigravity/gemini-3.7-flash

Logs or error output

{
  "requestId": "ocx-mssxs9sw-7",
  "timestamp": 1786711314848,
  "model": "gemini-3.7-flash",
  "provider": "google-antigravity",
  "admissionKind": "loopback",
  "inboundProtocol": "responses",
  "conversationId": "a432ba50f40f3dd5801ac25ccc03f60c",
  "requestedModel": "google-antigravity/gemini-3.7-flash",
  "requestedEffort": "medium",
  "configuredServiceTier": "fast",
  "configuredSpeedLabel": "fast",
  "status": 404,
  "durationMs": 520,
  "errorCode": "http_404",
  "closeReason": "non_stream",
  "upstreamError": "Provider error 404: Antigravity invalid request: Requested entity was not found.",
  "usageStatus": "unreported",
  "attempts": [
    {
      "ordinal": 1,
      "provider": "google-antigravity",
      "model": "gemini-3.7-flash",
      "adapter": "google",
      "status": 404,
      "durationMs": 498,
      "sendCount": 1,
      "recoveryKinds": [],
      "usageStatus": "unreported",
      "requestedEffort": "medium",
      "errorCode": "http_404",
      "displayMetrics": {
        "tokPerSecond": {
          "kind": "unavailable",
          "reason": "usage_missing"
        },
        "cost": {
          "kind": "unavailable",
          "reason": "usage_missing"
        }
      }
    }
  ],
  "routeDecision": {
    "version": 1,
    "decisionId": "0755037b8f11",
    "createdAt": 1786711314857,
    "requestedModel": "google-antigravity/gemini-3.7-flash",
    "routeKind": "explicit-provider",
    "requirements": [],
    "candidates": [
      {
        "provider": "google-antigravity",
        "model": "gemini-3.7-flash",
        "eligible": true,
        "exclusions": []
      }
    ],
    "selected": {
      "candidateIndex": 0,
      "provider": "google-antigravity",
      "model": "gemini-3.7-flash",
      "reason": "explicit-provider-namespace"
    }
  },
  "displayMetrics": {
    "tokPerSecond": {
      "kind": "unavailable",
      "reason": "usage_missing"
    },
    "cost": {
      "kind": "unavailable",
      "reason": "combo_attempt_unavailable"
    }
  }
}

Screenshots and supporting files

Redacted configuration

Antigravity Provider - Gemini 3.7 flash not working (Requested entity was not found.)

Checks

• I searched existing issues and documentation.
• I removed secrets, tokens, account details, request credentials, and personal data.

[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.

• Summary is empty.
• Reproduction is too vague to act on.

Please edit the issue to add:

• Describe what happened (the symptom or error).
• List exact steps, commands, and the observed failure — not only a short phrase.

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]

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