AI models

const completion = await backend.ai.chat.completions.create({
  model: "openai/gpt-4o-mini",
  messages: [{ role: "user", content: "Summarize this..." }],
});
console.log(completion.choices[0].message.content);

const stream = await backend.ai.chat.completions.create({
  model: "openai/gpt-4o-mini",
  messages,
  stream: true,
});
for await (const chunk of stream) {
  process.stdout.write(chunk.choices[0]?.delta?.content ?? "");
}

const res = await backend.ai.embeddings.create({
  model: "openai/text-embedding-3-small",
  input: "hello world",
});
// res.data[0].embedding → number[]

const img = await backend.ai.images.generate({
  model: "google/gemini-2.5-flash-image",
  prompt: "A sunset over mountains",
});
// img.data[0].b64_json → base64 PNG