stream not working on Vercel. Local work

[almaziphone]

import process from 'node:process'
import type { Context } from 'hono'

import { openai } from '@ai-sdk/openai'
import { streamText } from 'ai'

// export const runtime = 'edge'

export async function getOpenAi(c: Context) {
const { prompt } = await c.req.json<{ prompt: string }>()
const temperature = 0.7

if (!prompt) {
return c.json({ error: 'Prompt is required' }, 400)
}
const result = await streamText({
model: openai('gpt-3.5-turbo'),
prompt,
temperature,
frequencyPenalty: 0.8,
})

const reader = result.textStream.getReader()

while (true) {
const { done, value } = await reader.read()
if (done) {
break
}
console.error(value)
}
}