GPT-6 Astra Pro
GPT-6 Astra Pro is the same underlying model as GPT-6 Astra, served with reasoning.mode set to pro for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode
- Input price
- per 1M tokens
- Output price
- per 1M tokens
- Context
- 272K128K max output
- Cost / request
- 8K in · 500 out
01Routes and pricing
02Capabilities
- Input
- text
- Output
- text
- Context
- 272K
- Max output
- 128K
ReasoningTool callingStructured outputJSON modeSeeded sampling
03Quick start
Call it with your RProuter key
Any OpenAI-compatible SDK works. Point it at the RProuter base URL from your API keys page and use this model ID.
Catalog source: openrouter.ai · checked 2026-09-16
const response = await client.chat.completions.create({
model: "openai/gpt-6-astra-pro",
messages: [{ role: "user", content: "A story begins…" }],
max_tokens: 500,
stream: true,
});
for await (const chunk of response) {
process.stdout.write(chunk.choices[0]?.delta?.content ?? "");
}