[Bug]: "Gemini 3 Access Required" notification but requests work

[naowalrahman]

Description

When using models from the Google provider after authenticating with antigravity oauth, I get this error after every message sent in opencode:

Gemini 3 Access Required
Requested entity was not found. Request preview access at https://goo.gle/enable-preview-features before using Gemini 3 models.

While the requests do work and I see output from the model, it's unclear why this notification keeps appearing.

Reproduction Steps

Steps to reproduce the behavior:

1. Try using any model from Google Antigravity OAuth and send a message
2. The error notification should appear.

Expected Behavior

There should be no error notification.

Actual Behavior

The error notification appears.

Environment

• OS: Arch Linux
• Version: Linux 6.18.1-arch1-2.1-g14

Opencode Information

• Opencode Type: cli
• Opencode Version: 1.0.223
• Opencode Settings:

same as example config provided in README.md

{
  "$schema": "https://opencode.ai/config.json",
  "plugin": ["opencode-google-antigravity-auth"],
  "provider": {
    "google": {
      "npm": "@ai-sdk/google",
      "models": {
        "gemini-3-pro-preview": {
          "id": "gemini-3-pro-preview",
          "name": "Gemini 3 Pro Preview",
          "release_date": "2025-11-18",
          "reasoning": true,
          "limit": { "context": 1000000, "output": 64000 },
          "cost": { "input": 2, "output": 12, "cache_read": 0.2 },
          "modalities": { "input": ["text", "image", "video", "audio", "pdf"], "output": ["text"] }
        },
        "gemini-3-pro-high": {
          "id": "gemini-3-pro-preview",
          "name": "Gemini 3 Pro Preview (High Thinking)",
          "options": { "thinkingConfig": { "thinkingLevel": "high", "includeThoughts": true } }
        },
        "gemini-3-pro-medium": {
          "id": "gemini-3-pro-preview",
          "name": "Gemini 3 Pro Preview (Medium Thinking)",
          "options": { "thinkingConfig": { "thinkingLevel": "medium", "includeThoughts": true } }
        },
        "gemini-3-pro-low": {
          "id": "gemini-3-pro-preview",
          "name": "Gemini 3 Pro Preview (Low Thinking)",
          "options": { "thinkingConfig": { "thinkingLevel": "low", "includeThoughts": true } }
        },
        "gemini-3-flash": {
          "id": "gemini-3-flash",
          "name": "Gemini 3 Flash",
          "release_date": "2025-12-17",
          "reasoning": true,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0.5, "output": 3, "cache_read": 0.05 },
          "modalities": { "input": ["text", "image", "video", "audio", "pdf"], "output": ["text"] }
        },
        "gemini-3-flash-high": {
          "id": "gemini-3-flash",
          "name": "Gemini 3 Flash (High Thinking)",
          "options": { "thinkingConfig": { "thinkingLevel": "high", "includeThoughts": true } }
        },
        "gemini-3-flash-medium": {
          "id": "gemini-3-flash",
          "name": "Gemini 3 Flash (Medium Thinking)",
          "options": { "thinkingConfig": { "thinkingLevel": "medium", "includeThoughts": true } }
        },
        "gemini-3-flash-low": {
          "id": "gemini-3-flash",
          "name": "Gemini 3 Flash (Low Thinking)",
          "options": { "thinkingConfig": { "thinkingLevel": "low", "includeThoughts": true } }
        },
        "gemini-2.5-flash": {
          "id": "gemini-2.5-flash",
          "name": "Gemini 2.5 Flash",
          "release_date": "2025-03-20",
          "reasoning": true,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0.3, "output": 2.5, "cache_read": 0.075 },
          "modalities": { "input": ["text", "image", "audio", "video", "pdf"], "output": ["text"] }
        },
        "gemini-2.5-flash-lite": {
          "id": "gemini-2.5-flash-lite",
          "name": "Gemini 2.5 Flash Lite",
          "release_date": "2025-06-17",
          "reasoning": true,
          "limit": { "context": 1048576, "output": 65536 },
          "cost": { "input": 0.1, "output": 0.4, "cache_read": 0.025 },
          "modalities": { "input": ["text", "image", "audio", "video", "pdf"], "output": ["text"] }
        },
        "gemini-claude-sonnet-4-5-thinking-high": {
          "id": "gemini-claude-sonnet-4-5-thinking",
          "name": "Claude Sonnet 4.5 (High Thinking)",
          "release_date": "2025-11-18",
          "reasoning": true,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 3, "output": 15, "cache_read": 0.3 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "options": { "thinkingConfig": { "thinkingBudget": 32000, "includeThoughts": true } }
        },
        "gemini-claude-sonnet-4-5-thinking-medium": {
          "id": "gemini-claude-sonnet-4-5-thinking",
          "name": "Claude Sonnet 4.5 (Medium Thinking)",
          "release_date": "2025-11-18",
          "reasoning": true,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 3, "output": 15, "cache_read": 0.3 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "options": { "thinkingConfig": { "thinkingBudget": 16000, "includeThoughts": true } }
        },
        "gemini-claude-sonnet-4-5-thinking-low": {
          "id": "gemini-claude-sonnet-4-5-thinking",
          "name": "Claude Sonnet 4.5 (Low Thinking)",
          "release_date": "2025-11-18",
          "reasoning": true,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 3, "output": 15, "cache_read": 0.3 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "options": { "thinkingConfig": { "thinkingBudget": 4000, "includeThoughts": true } }
        },
        "gemini-claude-opus-4-5-thinking-high": {
          "id": "gemini-claude-opus-4-5-thinking",
          "name": "Claude Opus 4.5 (High Thinking)",
          "release_date": "2025-11-24",
          "reasoning": true,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 5, "output": 25, "cache_read": 0.5 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "options": { "thinkingConfig": { "thinkingBudget": 32000, "includeThoughts": true } }
        },
        "gemini-claude-opus-4-5-thinking-medium": {
          "id": "gemini-claude-opus-4-5-thinking",
          "name": "Claude Opus 4.5 (Medium Thinking)",
          "release_date": "2025-11-24",
          "reasoning": true,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 5, "output": 25, "cache_read": 0.5 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "options": { "thinkingConfig": { "thinkingBudget": 16000, "includeThoughts": true } }
        },
        "gemini-claude-opus-4-5-thinking-low": {
          "id": "gemini-claude-opus-4-5-thinking",
          "name": "Claude Opus 4.5 (Low Thinking)",
          "release_date": "2025-11-24",
          "reasoning": true,
          "limit": { "context": 200000, "output": 64000 },
          "cost": { "input": 5, "output": 25, "cache_read": 0.5 },
          "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
          "options": { "thinkingConfig": { "thinkingBudget": 4000, "includeThoughts": true } }
        }
      }
    }
  }
}

Debug Information

Running OPENCODE_GEMINI_DEBUG=1 opencode did not produce any debug file in my working directory

[safzanpirani]

afaik this is related to gemini-3-flash being added to 'small' models list

and when it finds we have google provider authenticated, it tries to use gemini 3 flash to create the title of the chat, which fails for whatever reason

[naowalrahman]

Ah, then I will test setting small_model to a non-google model to see if the error goes away

[GollyJer]

What is the best way to work around this?

[shekohex]

Set the small_model to something else? openai/gpt-5-nano maybe?

[naowalrahman]

Yeah I set it to llama 4 scout on Groq because GPT 5 nano doesn't show up on opencode zen for me

[GollyJer]

Nice. Yeah, I'm using OpenCode Zen also and currently grok is free.
So I set it to this and it's working great.

"small_model": "opencode/grok-code",

[LatikDesu]

setup "small_model": "opencode/grok-code" fix message for all models, but only gemini-3-flash has and not work:
"Requested entity was not found. Request preview access at https://goo.gle/enable-preview-features before using Gemini 3 models."
"gemini-3-flash": {
"id": "gemini-3-flash",
"name": "Gemini 3 Flash",
"limit": {
"context": 1048576,
"output": 65536
},
"modalities": {
"input": ["text", "image", "video", "audio", "pdf"],
"output": ["text"]
}
},

[safzanpirani]

What is the best way to work around this?

currently i've set small model to glm-4.7 to fix it

"small_model": "opencode/glm-4.7-free",

you can also just set it to gemini 3 flash to fix it, not sure why this happens

"small_model": "google/gemini-3-flash"