Repro: AI SDK Responses via Poe API (google/nano-banana)

repro-responses-google-nano-banana.mjs

// Repro: AI SDK (OpenAI Responses) calling Poe API (google/nano-banana)
//
// Install (in an empty repo):
//   npm i ai @ai-sdk/openai
//
// Run:
//   node --env-file=.env tests/scripts/repro-responses-google-nano-banana.mjs
// or:
//   POE_API_KEY=your_key node tests/scripts/repro-responses-google-nano-banana.mjs

import { generateText } from "ai";
import { createOpenAI } from "@ai-sdk/openai";

const apiKey = process.env.POE_API_KEY ?? "";
if (!apiKey) throw new Error("Missing POE_API_KEY env var.");

const baseURL = "https://api.poe.com/v1";
const modelId = "nano-banana";
const prompt = "Say hello in exactly 3 words";

const fetchWithLogging = async (input, init) => {
  const response = await fetch(input, init);

  const url =
    typeof input === "string"
      ? input
      : input instanceof URL
        ? input.toString()
        : input.url;
  const requestBody = typeof init?.body === "string" ? init.body : undefined;

  console.error(`[request] ${init?.method ?? "GET"} ${url}`);
  if (requestBody) console.error(`[request body] ${requestBody}`);
  console.error(`[response] ${response.status}`);
  console.error(`[response body] ${await response.clone().text()}`);

  return response;
};

const openai = createOpenAI({ baseURL, apiKey, fetch: fetchWithLogging });

const result = await generateText({
  model: openai.responses(modelId),
  prompt,
});

console.log(result.text);