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fix: use MODEL_ROUTES directly for Anthropic proxy routing

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Remove the ANTHROPIC_MODEL_MAP layer — /v1/messages now uses the
same model names as /v1/chat/completions (deepseek-v4-flash-free,
gpt-5.4-mini-no-login, deepseek/deepseek-v4-flash). This way users
send the original model name and it routes to the correct backend.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
MythEclipse
2026-06-11 00:42:21 +07:00
co-authored by Claude Fable 5
parent 2fca9febe4
commit 2fead57d0f
4 changed files with 11 additions and 44 deletions
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src/lib/anthropic-proxy.ts
+6 -39
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@@ -40,53 +40,20 @@ interface AnthropicResponse {
usage: { input_tokens: number; output_tokens: number };
}
// ─── Anthropic model → backend model mapping ──────────────────────────────────
// ─── Model resolution ─────────────────────────────────────────────────────────
/** User-facing Anthropic model name → { backendModel, backendConfig }. */
const ANTHROPIC_MODEL_MAP: Record<
string,
{ backendModel: string; config: BackendConfig }
> = {
"claude-sonnet-4-20250514": {
backendModel: "deepseek-v4-flash-free",
config: MODEL_ROUTES["deepseek-v4-flash-free"]!,
},
"claude-sonnet-4": {
backendModel: "deepseek-v4-flash-free",
config: MODEL_ROUTES["deepseek-v4-flash-free"]!,
},
"claude-3-haiku-20240307": {
backendModel: "gpt-5.4-mini-no-login",
config: MODEL_ROUTES["gpt-5.4-mini-no-login"]!,
},
"claude-3-haiku": {
backendModel: "gpt-5.4-mini-no-login",
config: MODEL_ROUTES["gpt-5.4-mini-no-login"]!,
},
"claude-opus-4-20250514": {
backendModel: "deepseek/deepseek-v4-flash",
config: MODEL_ROUTES["deepseek/deepseek-v4-flash"]!,
},
"claude-opus-4": {
backendModel: "deepseek/deepseek-v4-flash",
config: MODEL_ROUTES["deepseek/deepseek-v4-flash"]!,
},
};
// Also allow using raw backend model names directly
/** Resolve a model name to a backend config (uses MODEL_ROUTES directly). */
function resolveAnthropicModel(
model: string,
): { backendModel: string; config: BackendConfig } | undefined {
if (ANTHROPIC_MODEL_MAP[model]) return ANTHROPIC_MODEL_MAP[model];
// Fallback — try using the model name directly as a backend route
const direct = MODEL_ROUTES[model];
if (direct) return { backendModel: model, config: direct };
return undefined;
}
/** List all available Anthropic model names. */
/** List all available model names (same as OpenAI endpoint). */
export function listAnthropicModels(): string[] {
return Object.keys(ANTHROPIC_MODEL_MAP);
return Object.keys(MODEL_ROUTES);
}
// ─── Translation: Anthropic → Backend (OpenAI-format) ───────────────────────
@@ -126,7 +93,7 @@ function anthropicToBackend(
}
const base: BackendBody = {
model: anthReq.model,
model: backendModel,
messages,
max_tokens: anthReq.max_tokens,
temperature: anthReq.temperature,
@@ -144,7 +111,7 @@ function anthropicToBackend(
// If backend has a custom adaptRequest, use it
if (config.adaptRequest) {
return config.adaptRequest({
model: anthReq.model,
model: backendModel,
messages,
temperature: anthReq.temperature,
max_tokens: anthReq.max_tokens,