Port the remaining open weights we decided to name

app/MindWork AI Studio/Models/Tencent/HunyuanFamily.cs

@@ -0,0 +1,33 @@
+using static AIStudio.Provider.Capability;
+
+namespace AIStudio.Models.Tencent;
+
+/// <summary>
+/// Hunyuan, from Tencent.
+/// </summary>
+/// <remarks>
+/// The short name needs a rule of its own because that is how the model arrives: several providers
+/// serve it as "tencent/hy3", so looking at the start of the name finds nothing.
+///
+/// Hy3 answers straight away unless it is asked to think. Its reasoning_effort parameter starts at
+/// no_think, and low and high have to be requested.
+/// </remarks>
+public sealed class HunyuanFamily : ModelFamily
+{
+    /// <inheritdoc />
+    public override ModelVendor Vendor => ModelVendor.TENCENT;
+
+    /// <inheritdoc />
+    public override ModelSource Source => new("https://huggingface.co/tencent", new DateOnly(2026, 9, 11), "Ported unchanged from the Hunyuan block of ProviderExtensions.OpenSource.cs.");
+
+    /// <inheritdoc />
+    protected override void Declare(ModelFamilyBuilder builder)
+    {
+        builder.Rule("hunyuan").AsSubstring()
+            .Capabilities(TEXT_INPUT | TEXT_OUTPUT | FUNCTION_CALLING)
+            .Apis(CHAT_COMPLETION_API)
+            .Reasoning(ReasoningSupport.OPTIONAL);
+
+        builder.Rule("hy3").AsSegment().Inherits();
+    }
+}