Reduce Bundle Size

[RPate97]

Problem

Since token.js currently integrates with every LLM provider using their javascript SDK, the package size is much larger than necessary. This can impact the performance of backend services using token.js in serverless functions.

Solution

Refactor LLM provider integrations to work directly with each providers API instead of using the SDK.

Comments

It's recommended to do this one at a time. The following providers still need to be refactored to remove their SDKs.

• [ ] OpenAI
• [ ] AWS Bedrock
• [ ] Gemini
• [x] AI21
• [ ] Anthropic
• [ ] Cohere
• [ ] Mistral

Note that the OpenAI SDK is also used to integrate Perplexity and Groq, so they will need to be refactored as well when removing that SDK.

[sam-goldman]

AI21 doesn't have a JS library, so that integration doesn't use any dependencies aside from http and axios. I crossed it off the list.