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ds2api/internal/config/models.go

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package config
import "strings"
type ModelInfo struct {
ID string `json:"id"`
Object string `json:"object"`
Created int64 `json:"created"`
OwnedBy string `json:"owned_by"`
Permission []any `json:"permission,omitempty"`
}
type ModelAliasReader interface {
ModelAliases() map[string]string
}
const noThinkingModelSuffix = "-nothinking"
var deepSeekBaseModels = []ModelInfo{
{ID: "deepseek-v4-flash", Object: "model", Created: 1677610602, OwnedBy: "deepseek", Permission: []any{}},
{ID: "deepseek-v4-pro", Object: "model", Created: 1677610602, OwnedBy: "deepseek", Permission: []any{}},
{ID: "deepseek-v4-flash-search", Object: "model", Created: 1677610602, OwnedBy: "deepseek", Permission: []any{}},
{ID: "deepseek-v4-pro-search", Object: "model", Created: 1677610602, OwnedBy: "deepseek", Permission: []any{}},
{ID: "deepseek-v4-vision", Object: "model", Created: 1677610602, OwnedBy: "deepseek", Permission: []any{}},
}
var DeepSeekModels = appendNoThinkingVariants(deepSeekBaseModels)
var claudeBaseModels = []ModelInfo{
// Current aliases
{ID: "claude-opus-4-6", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-sonnet-4-6", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-haiku-4-5", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
// Claude 4.x snapshots and prior aliases kept for compatibility
{ID: "claude-sonnet-4-5", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-opus-4-1", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-opus-4-1-20250805", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-opus-4-0", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-opus-4-20250514", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-sonnet-4-5-20250929", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-sonnet-4-0", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-sonnet-4-20250514", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-haiku-4-5-20251001", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
// Claude 3.x (legacy/deprecated snapshots and aliases)
{ID: "claude-3-7-sonnet-latest", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-3-7-sonnet-20250219", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-3-5-sonnet-latest", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-3-5-sonnet-20240620", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-3-5-sonnet-20241022", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-3-opus-20240229", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-3-sonnet-20240229", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-3-5-haiku-latest", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-3-5-haiku-20241022", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
{ID: "claude-3-haiku-20240307", Object: "model", Created: 1715635200, OwnedBy: "anthropic"},
}
var ClaudeModels = appendNoThinkingVariants(claudeBaseModels)
func GetModelConfig(model string) (thinking bool, search bool, ok bool) {
baseModel, noThinking := splitNoThinkingModel(model)
if baseModel == "" {
return false, false, false
}
switch baseModel {
case "deepseek-v4-flash", "deepseek-v4-pro", "deepseek-v4-vision":
return !noThinking, false, true
case "deepseek-v4-flash-search", "deepseek-v4-pro-search":
return !noThinking, true, true
default:
return false, false, false
}
}
func GetModelType(model string) (modelType string, ok bool) {
baseModel, _ := splitNoThinkingModel(model)
switch baseModel {
case "deepseek-v4-flash", "deepseek-v4-flash-search":
return "default", true
case "deepseek-v4-pro", "deepseek-v4-pro-search":
return "expert", true
case "deepseek-v4-vision":
return "vision", true
default:
return "", false
}
}
func IsSupportedDeepSeekModel(model string) bool {
_, _, ok := GetModelConfig(model)
return ok
}
func IsNoThinkingModel(model string) bool {
_, noThinking := splitNoThinkingModel(model)
return noThinking
}
func DefaultModelAliases() map[string]string {
return map[string]string{
// OpenAI GPT / ChatGPT families
"chatgpt-4o": "deepseek-v4-flash",
"gpt-4": "deepseek-v4-flash",
"gpt-4-turbo": "deepseek-v4-flash",
"gpt-4-turbo-preview": "deepseek-v4-flash",
"gpt-4.5-preview": "deepseek-v4-flash",
"gpt-4o": "deepseek-v4-flash",
"gpt-4o-mini": "deepseek-v4-flash",
"gpt-4.1": "deepseek-v4-flash",
"gpt-4.1-mini": "deepseek-v4-flash",
"gpt-4.1-nano": "deepseek-v4-flash",
"gpt-5": "deepseek-v4-flash",
"gpt-5-chat": "deepseek-v4-flash",
"gpt-5.1": "deepseek-v4-flash",
"gpt-5.1-chat": "deepseek-v4-flash",
"gpt-5.2": "deepseek-v4-flash",
"gpt-5.2-chat": "deepseek-v4-flash",
"gpt-5.3-chat": "deepseek-v4-flash",
"gpt-5.4": "deepseek-v4-flash",
"gpt-5.5": "deepseek-v4-flash",
"gpt-5-mini": "deepseek-v4-flash",
"gpt-5-nano": "deepseek-v4-flash",
"gpt-5.4-mini": "deepseek-v4-flash",
"gpt-5.4-nano": "deepseek-v4-flash",
"gpt-5-pro": "deepseek-v4-pro",
"gpt-5.2-pro": "deepseek-v4-pro",
"gpt-5.4-pro": "deepseek-v4-pro",
"gpt-5.5-pro": "deepseek-v4-pro",
"gpt-5-codex": "deepseek-v4-pro",
"gpt-5.1-codex": "deepseek-v4-pro",
"gpt-5.1-codex-mini": "deepseek-v4-pro",
"gpt-5.1-codex-max": "deepseek-v4-pro",
"gpt-5.2-codex": "deepseek-v4-pro",
"gpt-5.3-codex": "deepseek-v4-pro",
"codex-mini-latest": "deepseek-v4-pro",
// OpenAI reasoning / research families
"o1": "deepseek-v4-pro",
"o1-preview": "deepseek-v4-pro",
"o1-mini": "deepseek-v4-pro",
"o1-pro": "deepseek-v4-pro",
"o3": "deepseek-v4-pro",
"o3-mini": "deepseek-v4-pro",
"o3-pro": "deepseek-v4-pro",
"o3-deep-research": "deepseek-v4-pro-search",
"o4-mini": "deepseek-v4-pro",
"o4-mini-deep-research": "deepseek-v4-pro-search",
// Claude current and historical aliases
"claude-opus-4-6": "deepseek-v4-pro",
"claude-opus-4-1": "deepseek-v4-pro",
"claude-opus-4-1-20250805": "deepseek-v4-pro",
"claude-opus-4-0": "deepseek-v4-pro",
"claude-opus-4-20250514": "deepseek-v4-pro",
"claude-sonnet-4-6": "deepseek-v4-flash",
"claude-sonnet-4-5": "deepseek-v4-flash",
"claude-sonnet-4-5-20250929": "deepseek-v4-flash",
"claude-sonnet-4-0": "deepseek-v4-flash",
"claude-sonnet-4-20250514": "deepseek-v4-flash",
"claude-haiku-4-5": "deepseek-v4-flash",
"claude-haiku-4-5-20251001": "deepseek-v4-flash",
"claude-3-7-sonnet": "deepseek-v4-flash",
"claude-3-7-sonnet-latest": "deepseek-v4-flash",
"claude-3-7-sonnet-20250219": "deepseek-v4-flash",
"claude-3-5-sonnet": "deepseek-v4-flash",
"claude-3-5-sonnet-latest": "deepseek-v4-flash",
"claude-3-5-sonnet-20240620": "deepseek-v4-flash",
"claude-3-5-sonnet-20241022": "deepseek-v4-flash",
"claude-3-5-haiku": "deepseek-v4-flash",
"claude-3-5-haiku-latest": "deepseek-v4-flash",
"claude-3-5-haiku-20241022": "deepseek-v4-flash",
"claude-3-opus": "deepseek-v4-pro",
"claude-3-opus-20240229": "deepseek-v4-pro",
"claude-3-sonnet": "deepseek-v4-flash",
"claude-3-sonnet-20240229": "deepseek-v4-flash",
"claude-3-haiku": "deepseek-v4-flash",
"claude-3-haiku-20240307": "deepseek-v4-flash",
// Gemini current and historical text / multimodal models
"gemini-pro": "deepseek-v4-pro",
"gemini-pro-vision": "deepseek-v4-vision",
"gemini-pro-latest": "deepseek-v4-pro",
"gemini-flash-latest": "deepseek-v4-flash",
"gemini-1.5-pro": "deepseek-v4-pro",
"gemini-1.5-flash": "deepseek-v4-flash",
"gemini-1.5-flash-8b": "deepseek-v4-flash",
"gemini-2.0-flash": "deepseek-v4-flash",
"gemini-2.0-flash-lite": "deepseek-v4-flash",
"gemini-2.5-pro": "deepseek-v4-pro",
"gemini-2.5-flash": "deepseek-v4-flash",
"gemini-2.5-flash-lite": "deepseek-v4-flash",
"gemini-3.1-pro": "deepseek-v4-pro",
"gemini-3-pro": "deepseek-v4-pro",
"gemini-3-flash": "deepseek-v4-flash",
"gemini-3.1-flash": "deepseek-v4-flash",
"gemini-3.1-flash-lite": "deepseek-v4-flash",
"llama-3.1-70b-instruct": "deepseek-v4-flash",
"qwen-max": "deepseek-v4-flash",
}
}
func ResolveModel(store ModelAliasReader, requested string) (string, bool) {
model := lower(strings.TrimSpace(requested))
if model == "" {
return "", false
}
aliases := loadModelAliases(store)
if IsSupportedDeepSeekModel(model) {
return model, true
}
if mapped, ok := aliases[model]; ok && IsSupportedDeepSeekModel(mapped) {
return mapped, true
}
baseModel, noThinking := splitNoThinkingModel(model)
resolvedModel, ok := resolveCanonicalModel(aliases, baseModel)
if !ok {
return "", false
}
return withNoThinkingVariant(resolvedModel, noThinking), true
}
func isRetiredHistoricalModel(model string) bool {
switch {
case strings.HasPrefix(model, "claude-1."):
return true
case strings.HasPrefix(model, "claude-2."):
return true
case strings.HasPrefix(model, "claude-instant-"):
return true
case strings.HasPrefix(model, "gpt-3.5"):
return true
default:
return false
}
}
func lower(s string) string {
b := []byte(s)
for i, c := range b {
if c >= 'A' && c <= 'Z' {
b[i] = c + 32
}
}
return string(b)
}
func OpenAIModelsResponse() map[string]any {
return map[string]any{"object": "list", "data": DeepSeekModels}
}
func OpenAIModelByID(store ModelAliasReader, id string) (ModelInfo, bool) {
canonical, ok := ResolveModel(store, id)
if !ok {
return ModelInfo{}, false
}
for _, model := range DeepSeekModels {
if model.ID == canonical {
return model, true
}
}
return ModelInfo{}, false
}
func ClaudeModelsResponse() map[string]any {
resp := map[string]any{"object": "list", "data": ClaudeModels}
if len(ClaudeModels) > 0 {
resp["first_id"] = ClaudeModels[0].ID
resp["last_id"] = ClaudeModels[len(ClaudeModels)-1].ID
} else {
resp["first_id"] = nil
resp["last_id"] = nil
}
resp["has_more"] = false
return resp
}
func appendNoThinkingVariants(models []ModelInfo) []ModelInfo {
out := make([]ModelInfo, 0, len(models)*2)
for _, model := range models {
out = append(out, model)
variant := model
variant.ID = withNoThinkingVariant(model.ID, true)
out = append(out, variant)
}
return out
}
func splitNoThinkingModel(model string) (string, bool) {
model = lower(strings.TrimSpace(model))
if strings.HasSuffix(model, noThinkingModelSuffix) {
return strings.TrimSuffix(model, noThinkingModelSuffix), true
}
return model, false
}
func withNoThinkingVariant(model string, enabled bool) string {
baseModel, _ := splitNoThinkingModel(model)
if !enabled {
return baseModel
}
if baseModel == "" {
return ""
}
return baseModel + noThinkingModelSuffix
}
func loadModelAliases(store ModelAliasReader) map[string]string {
aliases := DefaultModelAliases()
if store != nil {
for k, v := range store.ModelAliases() {
aliases[lower(strings.TrimSpace(k))] = lower(strings.TrimSpace(v))
}
}
return aliases
}
func resolveCanonicalModel(aliases map[string]string, model string) (string, bool) {
model = lower(strings.TrimSpace(model))
if model == "" {
return "", false
}
if isRetiredHistoricalModel(model) {
return "", false
}
if IsSupportedDeepSeekModel(model) {
return model, true
}
if mapped, ok := aliases[model]; ok && IsSupportedDeepSeekModel(mapped) {
return mapped, true
}
if strings.HasPrefix(model, "deepseek-") {
return "", false
}
knownFamily := false
for _, prefix := range []string{
"gpt-", "o1", "o3", "claude-", "gemini-", "llama-", "qwen-", "mistral-", "command-",
} {
if strings.HasPrefix(model, prefix) {
knownFamily = true
break
}
}
if !knownFamily {
return "", false
}
useVision := strings.Contains(model, "vision")
useReasoner := strings.Contains(model, "reason") ||
strings.Contains(model, "reasoner") ||
strings.HasPrefix(model, "o1") ||
strings.HasPrefix(model, "o3") ||
strings.Contains(model, "opus") ||
strings.Contains(model, "slow") ||
strings.Contains(model, "r1")
useSearch := strings.Contains(model, "search")
switch {
case useVision:
return "deepseek-v4-vision", true
case useReasoner && useSearch:
return "deepseek-v4-pro-search", true
case useReasoner:
return "deepseek-v4-pro", true
case useSearch:
return "deepseek-v4-flash-search", true
default:
return "deepseek-v4-flash", true
}
}
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