Opus-5

1 min read

Language Model Info

If the model is used before release 2026.32, the complete language model info has to be set. Only using the enum will use default parameters, that deviate significantly from the one of Opus 5

Via Anthropic endpoint

{
    "name": "litellm:anthropic-claude-opus-5",
    "provider": "LITELLM",
    "version": "claude-opus-5",
    "capabilities": [
        "function_calling",
        "reasoning",
        "streaming",
        "vision",
    ],
    "token_limits": {
        "token_limit_input": 1_000_000,
        "token_limit_output": 128_000,
    },
}

Via VertexAI

{
    "name": "litellm:vertex-claude-opus-5",
    "provider": "LITELLM",
    "version": "claude-opus-5",
    "capabilities": [
        "function_calling",
        "reasoning",
        "streaming",
        "vision",
    ],
    "token_limits": {
        "token_limit_input": 1_000_000,
        "token_limit_output": 128_000,
    },
}