Say what Google's music, research and answering models are made for

app/MindWork AI Studio/Models/Google/AqaFamily.cs

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+using AIStudio.Provider;
+
+using static AIStudio.Provider.Capability;
+
+namespace AIStudio.Models.Google;
+
+/// <summary>
+/// AQA, which answers a question out of the passages it was handed.
+/// </summary>
+/// <remarks>
+/// Attributed Question Answering, and the one entry in Google's catalog whose whole name is three
+/// letters. It answers on generateAnswer rather than on generateContent, together with the semantic
+/// retriever, and what comes back is the answer, the passages it rests on, and an estimate of
+/// whether the question could be answered from them at all.
+///
+/// Bound to Google, and it has to be: three letters are three letters, and a rule that short has no
+/// business meeting a name from somewhere else. The catalog holds exactly one model it can match.
+/// </remarks>
+public sealed class AqaFamily : ModelFamily
+{
+    /// <inheritdoc />
+    public override ModelVendor Vendor => ModelVendor.GOOGLE;
+
+    /// <inheritdoc />
+    public override ModelSource Source => new("https://ai.google.dev/gemini-api/docs/semantic_retrieval", new DateOnly(2026, 9, 19), "Reads 7,168 tokens and writes 1,024, which is a size for an answer rather than for a conversation. The route it answers on is generateAnswer, so nothing the app sends over the chat completion API reaches it.");
+
+    /// <inheritdoc />
+    protected override void Declare(ModelFamilyBuilder builder) =>
+        builder.Rule("aqa").AsExact().OnlyOn(LLMProviders.GOOGLE)
+            .Capabilities(TEXT_INPUT | TEXT_OUTPUT)
+            .Kind(ModelKind.GROUNDED_ANSWERING);
+}