What is the proper setup for gemma4:latest when running local with ollama

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I pulled gemma4:local and it seems happy running in ollama. If I connect with opencode and have the minimal config, I get a stunted output of say the letter "I". If I put a more elaborate config I get loops of (which I can break out of with ESC ESC):

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▣  Compaction · gemma4-opencode · 4.1s
I
▣  Build · gemma4-opencode · 1.3s

Simple config was:

        "gemma4:latest": {
          "name": "gemma4"
        },

More elaborate code was:

        "gemma4:latest": {
          "name": "gemma4",
          "tool_call": false,
          "reasoning": false,4096
          "limit": { "context": 8192, "output": 4096 },
          "cost": { "input": 0, "output": 0 }
        },

or

        "gemma4:latest": {
          "name": "gemma4",
          "tool_call": true,
          "reasoning": true,
          "limit": { "context": 8192, "output": 4096 },
          "cost": { "input": 0, "output": 0 }
        },

I got the ideas from https://github.com/tellang/opencode-gemma4-setup/blob/main/configs/opencode.json which I supposed was somehow working for someone.

This issue might be a duplicate of existing issues. Please check:

Gemma 4 (e4b) tool calling fails via Ollama OpenAI-compatible API — streaming tool_calls not recognized #20995: Gemma 4 (e4b) tool calling fails via Ollama OpenAI-compatible API — streaming tool_calls not recognized (same model/provider combo, similar symptoms of model not executing tools properly)
gemma-4-26b and gemma-4-31b opencode interaction issues leading to tool loops/failures #21034: gemma-4-26b and gemma-4-31b opencode interaction issues leading to tool loops/failures (similar loop/repeat behavior with Gemma 4 models running locally)
OpenCode 1.4.3 hangs with local Ollama provider on simple prompts, while /v1/chat/completions works #22132: OpenCode hangs with local Ollama provider on simple prompts (similar issue of stunted/no useful output with local Ollama)

If your issue is the same, please add a comment or reaction there rather than opening a new one.

AUTOMATED: closing as duplicate of: #22132

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What is the proper setup for gemma4:latest when running local with ollama #31291

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What is the proper setup for gemma4:latest when running local with ollama #31291

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github-actions commented on Jun 8, 2026

rekram1-node commented on Jun 8, 2026

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