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Models / OpenAI

GPT-5.5

$5/Mtok in

OpenAI's flagship, one key away.

Playground

Try it in the browser

Playground$5 in / $30 out per 1M tokens

Facts

At a glance

Availability

Live

Pricing

$5 / M input · $30 / M output

Endpoint

Chat Completions

/v1/chat/completions

Context window

256k tokens

API

Call it from code

import OpenAI from "openai"

const client = new OpenAI({
  baseURL: "https://api.companyfabric.com/v1",
  apiKey: process.env.COMPANYFABRIC_API_KEY,
})

const res = await client.chat.completions.create({
  model: "openai/gpt-5.5",
  max_tokens: 1024,
  temperature: 0.7,
  messages: [{ role: "user", content: "Say hello from the fabric." }],
})

console.log(res.choices[0].message.content)

Prompt library

Example runs

Rewrite this refund email to be firm but warm. Keep under 120 words.

This exact run cost $0.006

FAQ

Frequently asked questions

How much does GPT-5.5 cost?

$5 / M input · $30 / M output. The exact cost of each call is shown before you run it and metered to your prepaid balance, no subscription required.

Why use GPT-5.5 on CompanyFabric instead of going direct?

One key and one balance across every model in the library, at pricing at parity with or below the direct API. Switching models is a one-line change.

Is GPT-5.5 available through the OpenAI SDK?

Yes, point any OpenAI SDK at api.companyfabric.com/v1 and set model to "openai/gpt-5.5".

Variants

Same family

GPT-6 Astra

$10/Mtok in

OpenAI

OpenAI's GPT-6 flagship, a million-token window one key away.

Added 3 Sep 2026 · text

GPT-6 Sol

$2/Mtok in

OpenAI

GPT-6 for complex coding and agent work at a fifth of Astra's price, with the same million-token window.

Added 22 Sep 2026 · text

GPT-6 Luna

$0.1/Mtok in

OpenAI

GPT-6's high-volume tier: the cheapest frontier-family model in the catalog, with a million-token window.

Added 22 Sep 2026 · text

GPT-4.1 mini

$0.4/Mtok in

OpenAI

OpenAI's April 2025 small model with a million-token window, still running inside a lot of production agents. Keep it as your baseline and test newer models against it on the same key.

Added 27 Sep 2026 · text

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The previous stable Flash, still current for most work.

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One key. Every model. Exact prices.

Run GPT-5.5 with free starter credits. Free starter credits included, no subscription required.

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