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TokenizersBackend (from transformers v5) #296

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1 change: 1 addition & 0 deletions Sources/Tokenizers/Tokenizer.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -168,6 +168,7 @@ enum TokenizerModel {
"LlamaTokenizer": BPETokenizer.self,
"RobertaTokenizer": BPETokenizer.self,
"T5Tokenizer": T5Tokenizer.self,
"TokenizersBackend": BPETokenizer.self,
"PreTrainedTokenizer": BPETokenizer.self,
"Qwen2Tokenizer": BPETokenizer.self,
"WhisperTokenizer": BPETokenizer.self,
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9 changes: 9 additions & 0 deletions Tests/TokenizersTests/TokenizerTests.swift
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Expand Up @@ -362,4 +362,13 @@ struct TokenizerTests {
#expect(tokenizer.tokenize(text: "<s>Who are you?</s>") == ["<s>", "Who", "Ġare", "Ġyou", "?", "</s>"])
#expect(tokenizer.encode(text: "<s>Who are you?</s>") == [0, 0, 12375, 32, 47, 116, 2, 2])
}

@Test
func tokenizerBackend() async throws {
let tokenizerOpt = try await AutoTokenizer.from(pretrained: "mlx-community/Ministral-3-3B-Instruct-2512-4bit") as? PreTrainedTokenizer
#expect(tokenizerOpt != nil)
let tokenizer = tokenizerOpt!

#expect(tokenizer.encode(text: "She took a train to the West") == [6284, 5244, 1261, 10018, 1317, 1278, 5046])
}
}