TiktokenModel:
    | "davinci-002"
    | "babbage-002"
    | "text-davinci-003"
    | "text-davinci-002"
    | "text-davinci-001"
    | "text-curie-001"
    | "text-babbage-001"
    | "text-ada-001"
    | "davinci"
    | "curie"
    | "babbage"
    | "ada"
    | "code-davinci-002"
    | "code-davinci-001"
    | "code-cushman-002"
    | "code-cushman-001"
    | "davinci-codex"
    | "cushman-codex"
    | "text-davinci-edit-001"
    | "code-davinci-edit-001"
    | "text-embedding-ada-002"
    | "text-similarity-davinci-001"
    | "text-similarity-curie-001"
    | "text-similarity-babbage-001"
    | "text-similarity-ada-001"
    | "text-search-davinci-doc-001"
    | "text-search-curie-doc-001"
    | "text-search-babbage-doc-001"
    | "text-search-ada-doc-001"
    | "code-search-babbage-code-001"
    | "code-search-ada-code-001"
    | "gpt2"
    | "gpt-3.5-turbo"
    | "gpt-35-turbo"
    | "gpt-3.5-turbo-0301"
    | "gpt-3.5-turbo-0613"
    | "gpt-3.5-turbo-1106"
    | "gpt-3.5-turbo-0125"
    | "gpt-3.5-turbo-16k"
    | "gpt-3.5-turbo-16k-0613"
    | "gpt-3.5-turbo-instruct"
    | "gpt-3.5-turbo-instruct-0914"
    | "gpt-4"
    | "gpt-4-0314"
    | "gpt-4-0613"
    | "gpt-4-32k"
    | "gpt-4-32k-0314"
    | "gpt-4-32k-0613"
    | "gpt-4-turbo"
    | "gpt-4-turbo-2024-04-09"
    | "gpt-4-turbo-preview"
    | "gpt-4-1106-preview"
    | "gpt-4-0125-preview"
    | "gpt-4-vision-preview"
    | "gpt-4o"
    | "gpt-4o-2024-05-13"