Helicone worker throws JSON parse error with regular OpenAI call

The Helicone worker server throws the following error in completion:

POST /v1/chat/completions 500 Internal Server Error (104241.23ms) at ServiceWorkerGlobalScope.[kDispatchFetch] (/worker/helicone/worker/node_modules/@miniflare/core/src/standards/event.ts:385:13) at Object.handle (/worker/helicone/worker/node_modules/itty-router/index.mjs:1:614) at /worker/helicone/worker/src/routers/openaiProxyRouter.ts:20:12 at proxyForwarder (/worker/helicone/worker/src/lib/HeliconeProxyRequest/forwarder.ts:66:28) at getCachedResponse (/worker/helicone/worker/src/lib/cache/cacheFunctions.ts:73:52) at getMaxCachedResponses (/worker/helicone/worker/src/lib/cache/cacheFunctions.ts:95:20) at async Promise.all (index 0) at KVNamespace.get (/worker/helicone/worker/node_modules/@miniflare/kv/src/namespace.ts:209:12) at convertStoredToGetValue (/worker/helicone/worker/node_modules/@miniflare/kv/src/namespace.ts:128:19) at JSON.parse () SyntaxError: Unexpected number in JSON at position 1907

Completion call (using the official OpenAI node module:

 response = await openai.chat.completions.create({
            model: "gpt-3.5-turbo",
            messages: [
              {
                role: "system",
                content: `Summarize this item description with a maximum of 1-4 words, in plain german.
              Remove all prices (EUR, TL, etc.), remove all tokens that look like article-numbers, and quantities. 
              Remove any redundant information. Keep information that might be useful for customs declarations. Do not make up or add any information.
              The output is just the summarized text, without any explanation.`,
              },
              {
                role: "user",
                content: articleNumberDescription?.substring(0, 3000),
              },
            ],
            temperature: 0,
            max_tokens: 100,
            user: customerId,
          })

Where articleNumberDescription is a simple "Katheter für medizinische Zwecke"

OpenAI Config:

openai: {
    apiKey: keys["openai-key"],
    basePath: keys["openai-base-path"],
    baseURL: keys["openai-base-path"],
    defaultHeaders: {
      "Helicone-Auth": `Bearer ${keys["helicone-api-key"]}`,
      "Helicone-Cache-Enabled": "true",
      "Cache-Control": "max-age=2592000",
      "Helicone-Property-App": "data-normalization-service",
      "Helicone-Retry-Enabled": "true",
    },
  },

This is very strange behaviour. For me, that looks more like a bug than a user error. Any ideas?

Helicone / helicone

Helicone worker throws JSON parse error with regular OpenAI call #1549