feat(providers): add Empero (GLM 5.3 Flash) BYOK provider

crates/atlas-cersei/src/provider.rs

@@ -30,6 +30,7 @@ pub fn openai_base_url(provider: &str) -> Option<&'static str> {
         "cerebras" => "https://api.cerebras.ai/v1",
         "perplexity" => "https://api.perplexity.ai",
         "openrouter" => "https://openrouter.ai/api/v1",
+        "empero" => "https://free.empero.org/v1",
         _ => return None,
     })
 }
@@ -96,6 +97,7 @@ pub fn default_model_for(provider: &str) -> Option<&'static str> {
         "openrouter" => "anthropic/claude-sonnet-4.6",
         "perplexity" => "sonar-reasoning-pro",
         "cohere" => "command-a-03-2025",
+        "empero" => "glm-5.3-flash",
         _ => return None,
     })
 }
@@ -108,6 +110,7 @@ mod tests {
     fn base_url_known_and_unknown() {
         assert_eq!(openai_base_url("openai"), Some("https://api.openai.com/v1"));
         assert_eq!(openai_base_url("groq"), Some("https://api.groq.com/openai/v1"));
+        assert_eq!(openai_base_url("empero"), Some("https://free.empero.org/v1"));
         // Anthropic is handled natively, not via the OpenAI-compat path.
         assert_eq!(openai_base_url("anthropic"), None);
         assert_eq!(openai_base_url("nonsense"), None);
@@ -133,6 +136,7 @@ mod tests {
     fn build_provider_known_ok_unknown_err() {
         assert!(build_provider("anthropic", "sk-test", "claude-opus-4-8").is_ok());
         assert!(build_provider("openai", "sk-test", "gpt-5.1").is_ok());
+        assert!(build_provider("empero", "free", "glm-5.3-flash").is_ok());
         // Google routes to the native Gemini provider (thought-signature support),
         // not the OpenAI-compat client.
         assert!(build_provider("google", "sk-test", "gemini-3.1-pro-preview").is_ok());

src-tauri/src/commands/byok.rs

@@ -79,6 +79,7 @@ const ENV_KEY_VARS: &[(&str, &[&str])] = &[
     ("huggingface", &["HF_TOKEN", "HUGGING_FACE_HUB_TOKEN", "HUGGINGFACE_API_KEY"]),
     ("jina", &["JINA_API_KEY"]),
     ("elevenlabs", &["ELEVENLABS_API_KEY", "ELEVEN_API_KEY", "XI_API_KEY"]),
+    ("empero", &["EMPERO_API_KEY"]),
 ];
 
 /// One env-imported key: which provider it maps to, the variable it came from,

src-tauri/src/commands/modelchat.rs

@@ -57,6 +57,7 @@ pub(super) fn provider_endpoint(provider: &str) -> Option<(ApiKind, &'static str
         "cerebras" => (ApiKind::OpenAi, "https://api.cerebras.ai/v1"),
         "perplexity" => (ApiKind::OpenAi, "https://api.perplexity.ai"),
         "openrouter" => (ApiKind::OpenAi, "https://openrouter.ai/api/v1"),
+        "empero" => (ApiKind::OpenAi, "https://free.empero.org/v1"),
         _ => return None,
     })
 }
@@ -360,6 +361,7 @@ fn fallback_models(provider: &str) -> Vec<&'static str> {
         "openai" => vec!["gpt-4o", "gpt-4o-mini", "o3", "o4-mini"],
         "google" => vec!["gemini-3.1-pro-preview", "gemini-2.5-pro", "gemini-2.5-flash"],
         "cohere" => vec!["command-a-03-2025", "command-r-plus", "command-r"],
+        "empero" => vec!["glm-5.3-flash"],
         _ => vec![],
     }
 }

src/features/settings/lib/model-catalog.ts

@@ -31,6 +31,7 @@ const PREFERRED: Record<string, string[]> = {
   openrouter: ["anthropic/claude-sonnet-4.6", "google/gemini-3.1-pro", "qwen/qwen3-coder"],
   perplexity: ["sonar-reasoning-pro", "sonar-pro"],
   cohere: ["command-a-03-2025"],
+  empero: ["glm-5.3-flash"],
 };
 
 const MAX_MODELS = 18;

src/features/settings/lib/providers.ts

@@ -156,6 +156,15 @@ export const PROVIDERS: ProviderDef[] = [
     placeholder: "pplx-...",
     chat: true,
   },
+  {
+    id: "empero",
+    name: "Empero",
+    env: "EMPERO_API_KEY",
+    category: "Inference",
+    docsUrl: "https://free.empero.org",
+    placeholder: "free",
+    chat: true,
+  },
 
   // ── Gateways / proxies ───────────────────────────────────────────
   {