Added Mistral Large 4 to the model knowledge (#1059)

app/MindWork AI Studio/Models/Mistral/MistralLargeFamily.cs

@@ -8,7 +8,7 @@ namespace AIStudio.Models.Mistral;
 public sealed class MistralLargeFamily : MistralReleaseDatedFamily
 {
     /// <inheritdoc />
-    public override ModelSource Source => new("https://docs.mistral.ai/models/mistral-large-3-25-12", new DateOnly(2026, 9, 12), "Capabilities ported unchanged from ProviderExtensions.Mistral.cs: images and reasoning from Mistral Large 3 on. The model card states a 256k window.");
+    public override ModelSource Source => new("https://docs.mistral.ai/models/mistral-large-4-0", new DateOnly(2026, 10, 13), "Capabilities ported unchanged from ProviderExtensions.Mistral.cs: images and reasoning from Mistral Large 3 on. The model card of Mistral Large 3 states a 256k window, the one of Mistral Large 4 a 1M window.");
 
     /// <inheritdoc />
     protected override int VisionSince => 2512;
@@ -20,9 +20,18 @@ public sealed class MistralLargeFamily : MistralReleaseDatedFamily
     protected override int LatestRelease => 2512;
 
     /// <inheritdoc />
-    protected override void Declare(ModelFamilyBuilder builder) =>
+    protected override void Declare(ModelFamilyBuilder builder)
+    {
         builder.Rule("mistral-large").AsSegment()
             .Capabilities(WHAT_THEY_COULD_ALWAYS_DO)
             .Apis(CHAT_COMPLETION_API)
             .ContextWindow(256_000);
+
+        //
+        // Mistral Large 4 reads a million tokens instead of 256k. Its names carry the generation
+        // instead of a release, so this rule answers for the window only; images and reasoning
+        // still follow from the release, which the version names map Mistral Large 4 onto:
+        //
+        builder.Rule("mistral-large-4").AsSegment().InheritsFrom("mistral-large").ContextWindow(1_000_000);
+    }
 }

app/MindWork AI Studio/Models/Mistral/MistralReleases.cs

@@ -59,6 +59,7 @@ public static class MistralReleases
     /// </remarks>
     private static readonly (string VersionName, int Release)[] VERSION_NAMES =
     [
+        ("mistral-large-4", 2610),
         ("mistral-large-3", 2512),
 
         ("mistral-medium-3.5", 2604),