Tiktoken

Openai's Tiktoken implementation written in Swift. This is basic implementation from ordinary encode/decode.

Supports vocab:

• gpt2 (Same for gpt3)
• r50k_base
• p50k_base
• p50k_edit
• cl100k_base (gpt-4 and gpt-3.5)

And also supports asian characters and emojis.

Stars are welcome 😊.

 Usage

let encoder = try await Tiktoken.shared.getEncoding("gpt-4")
let encoded = encoder?.encode(value: "這個算法真的太棒了")
print(encoded)
let decoded = encoder?.decode(value: encoded)
print(decoded)

TODO List

• Encode native
• Encode unstable native
• Multithread
• Custom vocab
• Implements cache for loaded encoding
• Add/Improve documentation
• Add support for combine
• Optimization performance
• More testing