Responses API Streaming Events

# -N disables buffering so events print as they arrive
curl -N https://api.parallel.ai/v1/responses \
  -H "Authorization: Bearer $PARALLEL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "parallel",
    "input": "Who is the current CEO of Nvidia?",
    "reasoning": {"effort": "low"},
    "stream": true
  }'

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["PARALLEL_API_KEY"],
    base_url="https://api.parallel.ai/v1",
)

stream = client.responses.create(
    model="parallel",
    input="Who is the current CEO of Nvidia?",
    reasoning={"effort": "low"},
    stream=True,
)

for event in stream:
    if event.type == "response.output_text.delta":
        print(event.delta, end="", flush=True)
    elif event.type == "response.completed":
        print()  # final Response object is on event.response

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.PARALLEL_API_KEY,
  baseURL: "https://api.parallel.ai/v1",
});

const stream = await client.responses.create({
  model: "parallel",
  input: "Who is the current CEO of Nvidia?",
  reasoning: { effort: "low" },
  stream: true,
});

for await (const event of stream) {
  if (event.type === "response.output_text.delta") {
    process.stdout.write(event.delta);
  } else if (event.type === "response.completed") {
    process.stdout.write("\n"); // final Response object is on event.response
  }
}