models

package
v0.0.1 Latest Latest
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 Go to latest Published: Mar 5, 2026 License: GPL-3.0 Imports: 2 Imported by: 0

Documentation

Overview

Package models provides a catalog of known Claude models and their capabilities. It is the source of truth for model metadata within the SDK.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func Capabilities 

func Capabilities(modelID string) []string

Capabilities is a convenience function that returns capability strings for the given model ID. Returns nil if the model is not found.

Types

type Capability 

type Capability string

Capability represents a model capability such as vision or tool use. 

const (
	// CapVision indicates the model supports image/vision inputs.
	CapVision Capability = "vision"
	// CapToolUse indicates the model supports tool/function calling.
	CapToolUse Capability = "tool-use"
	// CapReasoning indicates the model supports extended reasoning.
	CapReasoning Capability = "reasoning"
	// CapStructuredOutput indicates the model supports structured JSON output.
	CapStructuredOutput Capability = "structured-output"
)

type CostTier 

type CostTier string

CostTier represents a provider-agnostic relative cost tier. 

const (
	// CostTierHigh represents opus-class pricing.
	CostTierHigh CostTier = "high"
	// CostTierMedium represents sonnet-class pricing.
	CostTierMedium CostTier = "medium"
	// CostTierLow represents haiku-class pricing.
	CostTierLow CostTier = "low"
)

type Model 

type Model struct {
	// ID is the API model identifier (e.g. "claude-opus-4-6").
	ID string
	// Name is the human-readable display name.
	Name string
	// Aliases are shorthand names accepted by the CLI (e.g. "opus").
	Aliases []string
	// CostTier is the relative cost tier for this model.
	CostTier CostTier
	// Capabilities lists what the model supports.
	Capabilities []Capability
	// ContextWindow is the default context window size in tokens.
	ContextWindow int
	// MaxOutputTokens is the maximum number of output tokens.
	MaxOutputTokens int
}

Model holds metadata for a single Claude model.

func All 

func All() []Model

All returns a copy of every known model in the catalog.

func ByCostTier 

func ByCostTier(tier CostTier) []Model

ByCostTier returns all models matching the given cost tier.

func ByID 

func ByID(id string) *Model

ByID looks up a model by its identifier. It checks in order:

  1. Exact match on ID
  2. Alias match
  3. Prefix match (for dated model IDs like "claude-opus-4-6-20260205")

Returns nil if no model is found.

func (Model) CapabilityStrings 

func (m Model) CapabilityStrings() []string

CapabilityStrings returns capabilities as a string slice for interop with string-based systems.

func (Model) HasCapability 

func (m Model) HasCapability(capability Capability) bool

HasCapability reports whether the model supports the given capability.

Source Files

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