Several bugs fixed

oAI/Providers/AnthropicProvider.swift

@@ -73,7 +73,11 @@ class AnthropicProvider: AIProvider {
     // MARK: - Models
 
     /// Local metadata used to enrich API results (pricing, context length) and as offline fallback.
+    /// Entries are matched by exact ID first; if no exact match is found, the enrichment step
+    /// falls back to prefix matching so newly-released model variants (e.g. "claude-sonnet-4-6-20260301")
+    /// still inherit the correct pricing tier.
     private static let knownModels: [ModelInfo] = [
+        // Claude 4.x series
         ModelInfo(
             id: "claude-opus-4-6",
             name: "Claude Opus 4.6",
@@ -82,6 +86,31 @@ class AnthropicProvider: AIProvider {
             pricing: .init(prompt: 15.0, completion: 75.0),
             capabilities: .init(vision: true, tools: true, online: true)
         ),
+        ModelInfo(
+            id: "claude-sonnet-4-6",
+            name: "Claude Sonnet 4.6",
+            description: "Best balance of speed and capability",
+            contextLength: 200_000,
+            pricing: .init(prompt: 3.0, completion: 15.0),
+            capabilities: .init(vision: true, tools: true, online: true)
+        ),
+        ModelInfo(
+            id: "claude-haiku-4-6",
+            name: "Claude Haiku 4.6",
+            description: "Fastest and most affordable",
+            contextLength: 200_000,
+            pricing: .init(prompt: 0.80, completion: 4.0),
+            capabilities: .init(vision: true, tools: true, online: true)
+        ),
+        // Claude 4.5 series
+        ModelInfo(
+            id: "claude-opus-4-5",
+            name: "Claude Opus 4.5",
+            description: "Previous generation Opus",
+            contextLength: 200_000,
+            pricing: .init(prompt: 15.0, completion: 75.0),
+            capabilities: .init(vision: true, tools: true, online: true)
+        ),
         ModelInfo(
             id: "claude-opus-4-5-20251101",
             name: "Claude Opus 4.5",
@@ -90,6 +119,14 @@ class AnthropicProvider: AIProvider {
             pricing: .init(prompt: 15.0, completion: 75.0),
             capabilities: .init(vision: true, tools: true, online: true)
         ),
+        ModelInfo(
+            id: "claude-sonnet-4-5",
+            name: "Claude Sonnet 4.5",
+            description: "Best balance of speed and capability",
+            contextLength: 200_000,
+            pricing: .init(prompt: 3.0, completion: 15.0),
+            capabilities: .init(vision: true, tools: true, online: true)
+        ),
         ModelInfo(
             id: "claude-sonnet-4-5-20250929",
             name: "Claude Sonnet 4.5",
@@ -98,6 +135,14 @@ class AnthropicProvider: AIProvider {
             pricing: .init(prompt: 3.0, completion: 15.0),
             capabilities: .init(vision: true, tools: true, online: true)
         ),
+        ModelInfo(
+            id: "claude-haiku-4-5",
+            name: "Claude Haiku 4.5",
+            description: "Fastest and most affordable",
+            contextLength: 200_000,
+            pricing: .init(prompt: 0.80, completion: 4.0),
+            capabilities: .init(vision: true, tools: true, online: true)
+        ),
         ModelInfo(
             id: "claude-haiku-4-5-20251001",
             name: "Claude Haiku 4.5",
@@ -106,6 +151,7 @@ class AnthropicProvider: AIProvider {
             pricing: .init(prompt: 0.80, completion: 4.0),
             capabilities: .init(vision: true, tools: true, online: true)
         ),
+        // Claude 3.x series
         ModelInfo(
             id: "claude-3-7-sonnet-20250219",
             name: "Claude 3.7 Sonnet",
@@ -124,6 +170,14 @@ class AnthropicProvider: AIProvider {
         ),
     ]
 
+    /// Pricing tiers used for fuzzy fallback matching on unknown model IDs.
+    /// Keyed by model name prefix (longest match wins).
+    private static let pricingFallback: [(prefix: String, prompt: Double, completion: Double)] = [
+        ("claude-opus",   15.0, 75.0),
+        ("claude-sonnet",  3.0, 15.0),
+        ("claude-haiku",   0.80, 4.0),
+    ]
+
     /// Fetch live model list from GET /v1/models, enriched with local pricing/context metadata.
     /// Falls back to knownModels if the request fails (no key, offline, etc.).
     func listModels() async throws -> [ModelInfo] {
@@ -158,14 +212,20 @@ class AnthropicProvider: AIProvider {
                 guard let id = item["id"] as? String,
                       id.hasPrefix("claude-") else { return nil }
                 let displayName = item["display_name"] as? String ?? id
+                // Exact match first
                 if let known = enrichment[id] { return known }
-                // Unknown new model — use display name and sensible defaults
+                // Fuzzy fallback: find the longest prefix that matches
+                let fallback = Self.pricingFallback
+                    .filter { id.hasPrefix($0.prefix) }
+                    .max(by: { $0.prefix.count < $1.prefix.count })
+                let pricing = fallback.map { ModelInfo.Pricing(prompt: $0.prompt, completion: $0.completion) }
+                    ?? ModelInfo.Pricing(prompt: 0, completion: 0)
                 return ModelInfo(
                     id: id,
                     name: displayName,
                     description: item["description"] as? String ?? "",
                     contextLength: 200_000,
-                    pricing: .init(prompt: 0, completion: 0),
+                    pricing: pricing,
                     capabilities: .init(vision: true, tools: true, online: false)
                 )
             }