OpenAI's flagship model in the GPT-5.6 series, advancing coding, scientific reasoning, long-horizon planning, and agentic workflows while improving reliability and efficiency on demanding real-world tasks. Adds a max reasoning-effort setting and an ultra mode that spawns subagents for complex, multi-step work.
1.0M tokens
2
available
Cheapest
OpenAI
$70.00/1M tokens
OpenAI, OpenRouter
Sorted by total cost (input + output per 1M tokens). Click a row to view provider details.
| Provider | Pricing (per 1M) | Rate Limits | Regions | Health | Latency |
|---|---|---|---|---|---|
In: $14.00Out: $56.00 | 500 RPM / 500K TPM | us-east-1eu-west-1 | Healthy | 0ms | |
In: $14.00Out: $56.00 | 200 RPM / 300K TPM | us-east-1 | Healthy | 0ms |
Use this model via OpenAI with an OpenAI-compatible SDK.
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.openai.com/v1",
apiKey: process.env.OPENAI_API_KEY,
});
const response = await client.chat.completions.create({
model: "gpt-5.6-sol",
messages: [
{ role: "user", content: "Hello!" }
],
});
console.log(response.choices[0].message.content);Using OpenAI API • OpenAI-compatible SDK