diff --git a/app/MindWork AI Studio/Models/DeepSeek/DeepSeekFamily.cs b/app/MindWork AI Studio/Models/DeepSeek/DeepSeekFamily.cs
new file mode 100644
index 00000000..1cfb487c
--- /dev/null
+++ b/app/MindWork AI Studio/Models/DeepSeek/DeepSeekFamily.cs
@@ -0,0 +1,77 @@
+using static AIStudio.Provider.Capability;
+
+namespace AIStudio.Models.DeepSeek;
+
+///
+/// DeepSeek, from V3 to V4, including R1 and the checkpoints distilled from it.
+///
+///
+/// One family for all of it, and bound to no provider: DeepSeek publishes its models as open
+/// weights and offers them on its own platform under the very same names, so a rule written once
+/// answers wherever the model turns up. The old code arrived at that by having its DeepSeek
+/// function call the open weights function, which is one of the loops this rebuild is undoing.
+///
+/// The distills are the case the whole priority question came from. They are Llama and Qwen
+/// checkpoints fine-tuned on R1 answers, so they carry "r1" in their name and would be read as R1
+/// itself -- which would promise the tool calling they lost together with R1's chat template. Here
+/// the rule for them is the R1 rule with one condition more, and that alone decides it.
+///
+/// Point releases behind a dot need a line of their own, as everywhere: "deepseek-v4" does not
+/// answer for "deepseek-v4.1", because a dot separates versions rather than name parts.
+///
+public sealed class DeepSeekFamily : ModelFamily
+{
+ ///
+ public override ModelVendor Vendor => ModelVendor.DEEP_SEEK;
+
+ ///
+ public override ModelSource Source => new("https://api-docs.deepseek.com/", new DateOnly(2026, 9, 11), "Ported unchanged from the rules in ProviderExtensions.DeepSeek.cs and the DeepSeek block of ProviderExtensions.OpenSource.cs.");
+
+ ///
+ protected override void Declare(ModelFamilyBuilder builder)
+ {
+ builder.Rule("deepseek").AsSegment()
+ .Capabilities(TEXT_INPUT | TEXT_OUTPUT)
+ .Apis(CHAT_COMPLETION_API);
+
+ // The V3 line answers directly and calls functions:
+ builder.Rule("deepseek-v3").AsPrefix().Inherits()
+ .Capabilities(FUNCTION_CALLING);
+
+ //
+ // From V3.1 on there is a thinking mode which the request turns on, and V3.2 added tool
+ // calling inside it. The gateways write these either as "deepseek-v3.1" or as
+ // "deepseek-chat-v3.1", so the version alone is what is looked for.
+ //
+ builder.Rule("deepseek").AsSegment().AlsoContains("v3.1").InheritsFrom("deepseek-v3")
+ .Reasoning(ReasoningSupport.OPTIONAL);
+
+ builder.Rule("deepseek").AsSegment().AlsoContains("v3.2").InheritsFrom("deepseek-v3")
+ .Reasoning(ReasoningSupport.OPTIONAL);
+
+ builder.Rule("deepseek-r1").AsPrefix().InheritsFrom("deepseek-v3")
+ .Reasoning(ReasoningSupport.ALWAYS);
+
+ // The distills kept the chat template of the model they were built from, so none of the
+ // tool calling R1 itself was trained for survived:
+ builder.Rule("deepseek-r1").AsPrefix().AlsoContains("distill").Inherits()
+ .Removes(FUNCTION_CALLING);
+
+ builder.Rule("deepseek-v4").AsPrefix().InheritsFrom("deepseek-v3")
+ .Reasoning(ReasoningSupport.ON_BY_DEFAULT);
+
+ builder.Rule("deepseek-v4").AsPrefix().AlsoContains("vision").Inherits()
+ .Capabilities(MULTIPLE_IMAGE_INPUT);
+
+ //
+ // The two aliases of DeepSeek's own platform. They name a mode rather than a model: both
+ // point at the current flash model, one with thinking and one without. Exactly these
+ // names and no others -- "deepseek-chat-v3.1" is a gateway's name for a version, not this
+ // alias.
+ //
+ builder.Rule("deepseek-chat").AsExact().InheritsFrom("deepseek-v3");
+
+ builder.Rule("deepseek-reasoner").AsExact().InheritsFrom("deepseek-v3")
+ .Reasoning(ReasoningSupport.ALWAYS);
+ }
+}
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Models/ModelFamilyBuilder.cs b/app/MindWork AI Studio/Models/ModelFamilyBuilder.cs
index 559c99cf..11b8f80e 100644
--- a/app/MindWork AI Studio/Models/ModelFamilyBuilder.cs
+++ b/app/MindWork AI Studio/Models/ModelFamilyBuilder.cs
@@ -36,9 +36,20 @@ public sealed class ModelFamilyBuilder(string origin)
/// The rules, in the order they were stated.
internal IReadOnlyList Build()
{
+ //
+ // The same text may well be stated twice, with different conditions on top -- that is how
+ // a variant of a generation is written. What cannot be done is naming that text to inherit
+ // from, because it names two rules and taking either of them would be a coin toss. Found
+ // before anything is built, so that where the two stand in the file makes no difference.
+ //
+ var statedMoreThanOnce = this.stated
+ .GroupBy(statement => statement.PatternText, StringComparer.Ordinal)
+ .Where(group => group.Count() > 1)
+ .Select(group => group.Key)
+ .ToHashSet(StringComparer.Ordinal);
+
var built = new List(this.stated.Count);
var byPatternText = new Dictionary(StringComparer.Ordinal);
- var statedMoreThanOnce = new HashSet(StringComparer.Ordinal);
ModelProfileChange? previous = null;
foreach (var statement in this.stated)
@@ -46,15 +57,7 @@ public sealed class ModelFamilyBuilder(string origin)
var rule = statement.Build(statement.InheritanceBasis(byPatternText, statedMoreThanOnce, previous));
built.Add(rule);
-
- //
- // The same text may well be stated twice, with different conditions on top -- that is
- // how a variant of a generation is written. What cannot be done afterwards is naming
- // that text to inherit from, because it no longer names one rule.
- //
- if (!byPatternText.TryAdd(rule.Pattern.Text, rule.Change))
- statedMoreThanOnce.Add(rule.Pattern.Text);
-
+ byPatternText[rule.Pattern.Text] = rule.Change;
previous = rule.Change;
}
diff --git a/app/MindWork AI Studio/Models/ModelRuleBuilder.cs b/app/MindWork AI Studio/Models/ModelRuleBuilder.cs
index 9e2a0753..6f4376ef 100644
--- a/app/MindWork AI Studio/Models/ModelRuleBuilder.cs
+++ b/app/MindWork AI Studio/Models/ModelRuleBuilder.cs
@@ -34,6 +34,15 @@ public sealed class ModelRuleBuilder(string patternText, ModelRuleKind ruleKind,
private TokenizerRef? tokenizer;
private ImageLimits? images;
+ ///
+ /// The text this rule answers for, before anything was stated about it.
+ ///
+ ///
+ /// Read by the family builder before it builds anything, to find the texts which name more
+ /// than one rule.
+ ///
+ internal string PatternText => patternText;
+
///
/// The text is the whole model name.
///
diff --git a/app/MindWork AI Studio/Models/Perplexity/SonarFamily.cs b/app/MindWork AI Studio/Models/Perplexity/SonarFamily.cs
new file mode 100644
index 00000000..6a26fefe
--- /dev/null
+++ b/app/MindWork AI Studio/Models/Perplexity/SonarFamily.cs
@@ -0,0 +1,36 @@
+using static AIStudio.Provider.Capability;
+
+namespace AIStudio.Models.Perplexity;
+
+///
+/// Sonar, the Perplexity models which search the web before they answer.
+///
+///
+/// Searching is what they are, not something they can be asked to do, so every one of them states
+/// it. What differs is only whether the model thinks as well.
+///
+/// No Sonar writes images. What looks like it does is the option to have the answer come with
+/// pictures: those are images the search found on the pages it read, handed back as links, and
+/// reporting that as an output modality would have the chat wait for pictures which never arrive.
+///
+public sealed class SonarFamily : ModelFamily
+{
+ ///
+ public override ModelVendor Vendor => ModelVendor.PERPLEXITY;
+
+ ///
+ public override ModelSource Source => new("https://docs.perplexity.ai/getting-started/models", new DateOnly(2026, 9, 11), "Ported unchanged from the rules in ProviderExtensions.Perplexity.cs: images in, web search always, thinking for the reasoning and research models.");
+
+ ///
+ protected override void Declare(ModelFamilyBuilder builder)
+ {
+ builder.Rule("sonar").AsSegment()
+ .Capabilities(TEXT_INPUT | MULTIPLE_IMAGE_INPUT | TEXT_OUTPUT | WEB_SEARCH)
+ .Apis(CHAT_COMPLETION_API);
+
+ builder.Rule("sonar").AsSegment().AlsoContains("reasoning").Inherits()
+ .Reasoning(ReasoningSupport.ALWAYS);
+
+ builder.Rule("sonar").AsSegment().AlsoContains("deep-research").Inherits();
+ }
+}
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Models/XAI/GrokFamily.cs b/app/MindWork AI Studio/Models/XAI/GrokFamily.cs
new file mode 100644
index 00000000..6a1fb4f7
--- /dev/null
+++ b/app/MindWork AI Studio/Models/XAI/GrokFamily.cs
@@ -0,0 +1,58 @@
+using static AIStudio.Provider.Capability;
+
+namespace AIStudio.Models.XAI;
+
+///
+/// Grok, from the old vision models to the 5 line.
+///
+///
+/// The family's own fallback calls functions, and that is deliberate: without it an unknown Grok
+/// version would reach whatever answers for everything and lose tool calling, which every Grok
+/// since the 3 line has. Grok 3 itself needs no rule for the same reason -- the fallback already
+/// says exactly what it is.
+///
+/// Video is not among their modalities. xAI serves audio, image, and video through models and APIs
+/// of their own, and the model pages of the 4.x line say "text, image" and nothing else.
+///
+public sealed class GrokFamily : ModelFamily
+{
+ ///
+ public override ModelVendor Vendor => ModelVendor.XAI;
+
+ ///
+ public override ModelSource Source => new("https://docs.x.ai/docs/models", new DateOnly(2026, 9, 11), "Ported unchanged from the Grok block of ProviderExtensions.OpenSource.cs.");
+
+ ///
+ protected override void Declare(ModelFamilyBuilder builder)
+ {
+ builder.Rule("grok").AsSegment()
+ .Capabilities(TEXT_INPUT | TEXT_OUTPUT | FUNCTION_CALLING)
+ .Apis(CHAT_COMPLETION_API);
+
+ // The old vision models look at pictures and call nothing:
+ builder.Rule("grok").AsSegment().AlsoContains("vision")
+ .Capabilities(TEXT_INPUT | MULTIPLE_IMAGE_INPUT | TEXT_OUTPUT)
+ .Apis(CHAT_COMPLETION_API);
+
+ builder.Rule("grok-3-mini").AsPrefix()
+ .Capabilities(TEXT_INPUT | TEXT_OUTPUT | FUNCTION_CALLING)
+ .Apis(CHAT_COMPLETION_API)
+ .Reasoning(ReasoningSupport.ALWAYS);
+
+ //
+ // The 4 line reads images and always thinks; only the effort can be set. The 4.20 models
+ // need a line of their own because a dot separates versions rather than name parts, so
+ // "grok-4" does not answer for "grok-4.20".
+ //
+ builder.Rule("grok-4").AsPrefix()
+ .Capabilities(TEXT_INPUT | MULTIPLE_IMAGE_INPUT | TEXT_OUTPUT | FUNCTION_CALLING)
+ .Apis(CHAT_COMPLETION_API)
+ .Reasoning(ReasoningSupport.ALWAYS);
+
+ builder.Rule("grok-4.20").AsPrefix().InheritsFrom("grok-4");
+
+ // One member of the 4.20 line answers without thinking, and it says so in its name:
+ builder.Rule("grok-4.20").AsPrefix().AlsoContains("non-reasoning").Inherits()
+ .Reasoning(ReasoningSupport.NONE);
+ }
+}
\ No newline at end of file
diff --git a/app/Tests/Models/PortingDifferenceTests.cs b/app/Tests/Models/PortingDifferenceTests.cs
index 62097932..cf3b5fe4 100644
--- a/app/Tests/Models/PortingDifferenceTests.cs
+++ b/app/Tests/Models/PortingDifferenceTests.cs
@@ -34,6 +34,9 @@ public sealed class PortingDifferenceTests
LLMProviders.GOOGLE,
LLMProviders.MISTRAL,
LLMProviders.ALIBABA_CLOUD,
+ LLMProviders.DEEP_SEEK,
+ LLMProviders.PERPLEXITY,
+ LLMProviders.X,
];
[Test]