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60 lines
2.9 KiB
C#
60 lines
2.9 KiB
C#
using static AIStudio.Provider.Capability;
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namespace AIStudio.Models.Anthropic;
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/// <summary>
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/// Claude, all of it: the 3.x models, the 4.x models, and the 5 line.
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/// </summary>
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/// <remarks>
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/// One family, because every Claude is the same shape and always has been -- text and images in,
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/// text out, tool calling, one API. What each generation adds to that is a single sentence about
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/// thinking, and the rules below are almost nothing but those sentences.
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///
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/// The first rule is the family's own fallback, and it is a statement rather than an accident: a
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/// Claude nobody has written a rule for yet is still a Claude, and every one of them so far reads
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/// images and calls tools. It answers for whole name parts, so every rule bound to the start of a
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/// name beats it, whatever their lengths -- which is what lets it sit first and mean "unless".
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/// </remarks>
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public sealed class ClaudeFamily : ModelFamily
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{
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/// <inheritdoc />
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public override ModelVendor Vendor => ModelVendor.ANTHROPIC;
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/// <inheritdoc />
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public override ModelSource Source => new("https://docs.anthropic.com/en/docs/about-claude/models", new DateOnly(2026, 9, 11), "Ported unchanged from the rules in ProviderExtensions.Anthropic.cs: one shape for all of Claude, and one sentence per generation about how it thinks.");
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/// <inheritdoc />
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protected override void Declare(ModelFamilyBuilder builder)
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{
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builder.Rule("claude").AsSegment()
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.Capabilities(TEXT_INPUT | MULTIPLE_IMAGE_INPUT | TEXT_OUTPUT | FUNCTION_CALLING)
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.Apis(CHAT_COMPLETION_API);
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//
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// The 3.x models say nothing beyond the shape above, so nothing is written for them: the
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// previous rules had a branch for "claude-3-" which returned exactly what its fallback
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// returned. Only 3.7 differs, by being the first Claude which could be asked to think.
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//
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builder.Rule("claude-3-7").AsPrefix().InheritsFrom("claude")
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.Reasoning(ReasoningSupport.OPTIONAL);
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// The 4.x models think when a thinking budget is given, and not otherwise:
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builder.Rule("claude-opus-4").AsPrefix().InheritsFrom("claude")
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.Reasoning(ReasoningSupport.OPTIONAL);
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builder.Rule("claude-sonnet-4").AsPrefix().InheritsFrom("claude-opus-4");
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builder.Rule("claude-haiku-4-5").AsPrefix().InheritsFrom("claude-opus-4");
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// Opus 5 and Sonnet 5 think adaptively unless thinking is turned off:
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builder.Rule("claude-opus-5").AsPrefix().InheritsFrom("claude")
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.Reasoning(ReasoningSupport.ON_BY_DEFAULT);
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builder.Rule("claude-sonnet-5").AsPrefix().InheritsFrom("claude-opus-5");
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// Fable 5 and Mythos 5 always think, and there is no switch for it:
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builder.Rule("claude-fable-5").AsPrefix().InheritsFrom("claude")
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.Reasoning(ReasoningSupport.ALWAYS);
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builder.Rule("claude-mythos-5").AsPrefix().InheritsFrom("claude-fable-5");
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}
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} |