API providers, route pricing, availability, and recent reliability signals.
Latency, throughput, and reliability signals from recent traffic.
Effective prices over the last 30 days, with current provider list prices for context.
Headline benchmark standings and comparison context.
Daily gateway activity over the last 30 days, with current UTC-day pace projection.
Public apps observed in gateway request traffic for this model.
Uptime trend for this model over the last 24 hours.
Start calling this model with endpoint-specific examples.
Key dates, capabilities, and model metadata.
Commercial plans and bundled access that currently include this model.
OpenAI: GPT 5.3 Codex Spark
Create a key, choose a supported route, and copy a ready request.
Choose a supported endpoint, pick a main language, then select the example style you want to copy.
Supported API reference routes for this model.
import Phaseo from '@phaseo/sdk';
const client = new Phaseo({
apiKey: process.env.PHASEO_API_KEY,
});
const response = await client.generateResponse({
"model": "openai/gpt-5.3-codex-spark",
"input": "Give me one fun fact about cURL."
});
const outputText = response.output
?.flatMap((item) => item.content ?? [])
.find((item) => item.type === "output_text")
?.text;
console.log(outputText ?? response);