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Codex / OpenCode Setup

Configure Codex or OpenCode CLI tools to use ScaleLLM.

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Configuration

Set environment variables: 
export OPENAI_BASE_URL="https://api.scalellm.dev/v1"
export OPENAI_API_KEY="sk_your_key"

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Usage

# Initialize with a model
codex init --model claude-sonnet-4.5

# Or for OpenCode
opencode --model claude-sonnet-4.5

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Available Models

claude-opus-4.5          # Complex tasks
claude-sonnet-4.5        # General coding (recommended)
claude-haiku-4.5         # Fast completions
gemini-3-pro-preview     # Long context
gemini-3-flash         # Quick & cheap

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Troubleshooting

Make sure you’ve exported them in your current shell: echo $OPENAI_BASE_URL
Use exact model names like claude-sonnet-4.5