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tokenx

Fast and lightweight token estimation for any LLM without requiring a full tokenizer

v1.2.0 URL: https://unpkg.com/tokenx@1.2.0/dist/index.js

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aillmtokentokenizerestimationtiktokenanthropicopenai

tokenlens

A lightweight registry of LLM model information, like name and context sizes, for building AI-powered apps.

v1.3.1 URL: https://unpkg.com/tokenlens@1.3.1/dist/index.js

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aillmai modelsmodel registrycontext windowtoken usagetokenspricingcost estimationusage normalizationprompt cachevercel aivercel ai gatewayai-sdkopenaianthropicgooglemistralcoherexaideepseekmetallamagemini

openai-gpt-token-counter

Count the number of OpenAI tokens in a string. Supports all OpenAI Text models including GPT-5, GPT-4, GPT-3.5-turbo, and specialized models

v1.1.2 URL: https://unpkg.com/openai-gpt-token-counter@1.1.2/src/index.js

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openaigptgpt3openai tokenstokensgpt3 tokensgpt3 token counteropenai token countertoken gpt3gpt4gpt4 tokensgpt4 token counteropenai gpt4gpt-3.5-turbogpt-4gpt-4-32kgpt-5gpt-5-minigpt-5-nanogpt-3.5-turbo tokensgpt-3.5-turbo token counteropenai gpt-3.5-turboopenai gpt-4openai gpt-4-32kopenai gpt-5openai gpt-5-miniopenai gpt-5-nanoopenai gpt modelsnatural language processingNLPtext generationchatbot developmentAI developmentmachine learninglanguage modelgpt token countgpt tokens

llm-credit-sdk

SDK for estimating and reconciling LLM token costs using a credit system.

v1.2.0 URL: https://unpkg.com/llm-credit-sdk@1.2.0/dist/index.js

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aisdkcredittokensbillingllmopenaianthropicusage-trackingcost-estimationtypescript

@waylaidwanderer/chatgpt-api

A ChatGPT implementation using the official ChatGPT model via OpenAI's API.

v1.37.3 URL: https://unpkg.com/@waylaidwanderer/chatgpt-api@1.37.3/index.js

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apiclibingapi-serveropenaiapi-restgptbing-apibing-searchgpt-3openai-apigpt-4chatgptchatgpt-apibing-chat