GPT-5.5 API: Pricing, Access, and How to Use It

OpenAI's GPT-5.5 is the current flagship: stronger reasoning, broader world knowledge, and more reliable instruction-following than any prior model in the series. If you're building agents, writing assistants, code review tools, or anything that demands real intelligence at the API level, GPT-5.5 is the model you're evaluating against.

The downside is cost — calling the official OpenAI endpoint at scale adds up fast. Hypereal offers the same GPT-5.5 model through an OpenAI-compatible API at lower prices, because we buy provider capacity in bulk and pass the savings to developers. No code changes beyond a base URL and key swap.

What is GPT-5.5

GPT-5.5 is OpenAI's current top-tier language model, positioned above GPT-5 in reasoning capability and below their research-only experimental releases. Key characteristics:

• Deep reasoning: significantly better at multi-step logic, math, and code generation than GPT-4-class models
• Long context: handles large codebases, lengthy documents, and extended conversations without degradation
• Instruction fidelity: follows complex, multi-part instructions reliably — critical for agentic workflows
• Multimodal inputs: accepts text and images in the same request
• OpenAI-compatible API: the same /v1/chat/completions endpoint shape, same message format, same function/tool calling schema

GPT-5.5 is the model most professional teams reach for when quality matters more than latency, and when they've outgrown the faster but less capable models in the lineup.

GPT-5.5 API pricing

OpenAI's direct pricing for GPT-5.5 is among the highest in the industry. Hypereal reduces that cost by buying capacity in bulk — the same way cloud providers reduce compute costs for their customers.

Provider	GPT-5.5 cost	Savings
OpenAI official	Full retail rate	—
Hypereal	A fraction of official pricing	Meaningful reduction

We don't publish exact per-token prices here because they adjust over time. Check hypereal.cloud for live pricing in the dashboard.

Hypereal uses a credit system: 100 credits = $1.00 USD. You can see exactly how many credits each request costs before you commit to scale. New accounts receive free trial credits — enough to benchmark GPT-5.5 on your actual workload before adding funds.

How to use the GPT-5.5 API

The integration is a two-line change from any existing OpenAI setup. Set the base URL to https://api.hypereal.cloud/v1 and use your Hypereal key.

Step 1: Get your key

1. Sign up at hypereal.cloud
2. Dashboard → API Keys → Create Key
3. Copy the key: export HYPEREAL_API_KEY=sk-...

Step 2: Call GPT-5.5 with curl

curl -X POST https://api.hypereal.cloud/v1/chat/completions \
  -H "Authorization: Bearer $HYPEREAL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.5",
    "messages": [
      {
        "role": "system",
        "content": "You are a senior software engineer. Be concise and precise."
      },
      {
        "role": "user",
        "content": "Explain the trade-offs between PostgreSQL row-level security and application-layer authorization."
      }
    ]
  }'

Step 3: Python (OpenAI SDK)

Because Hypereal is OpenAI-compatible, you can use the official openai Python package — just override base_url and api_key:

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.hypereal.cloud/v1",
    api_key=os.environ["HYPEREAL_API_KEY"],
)

response = client.chat.completions.create(
    model="gpt-5.5",
    messages=[
        {"role": "system", "content": "You are a meticulous code reviewer."},
        {"role": "user", "content": "Review this Python function for edge cases:\n\ndef divide(a, b):\n    return a / b"},
    ],
)

print(response.choices[0].message.content)

Step 4: JavaScript / TypeScript

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.hypereal.cloud/v1",
  apiKey: process.env.HYPEREAL_API_KEY,
});

const completion = await client.chat.completions.create({
  model: "gpt-5.5",
  messages: [
    {
      role: "user",
      content: "Write a TypeScript function that debounces async calls and cancels pending ones on new invocation.",
    },
  ],
});

console.log(completion.choices[0].message.content);

Tool/function calling, streaming, and system prompts all work exactly as they do on the OpenAI endpoint — no schema differences.

GPT-5.5 vs GPT-5

Both models are available through Hypereal. Here's how to choose:

Capability	GPT-5	GPT-5.5
Reasoning depth	Strong	Stronger
Instruction following	Reliable	More reliable
Long-context handling	Good	Better
Cost	Lower	Higher
Best for	General tasks, drafting, summarization	Agents, complex reasoning, code review

When to use GPT-5: high-volume tasks where cost per call matters and the task is well-defined — summarization, classification, light Q&A.

When to use GPT-5.5: agentic pipelines, multi-step reasoning, complex code generation, tasks where a wrong answer is expensive.

Hypereal also carries Claude Opus 4.8, Claude Sonnet 4.7, DeepSeek, and GPT-5.5 side-by-side on the same key and base URL. You can A/B test models without managing multiple API accounts.

FAQ

Do I need to modify my existing OpenAI integration? Only two things: set base_url to https://api.hypereal.cloud/v1 and replace your OpenAI key with your Hypereal key. All endpoint paths, request schemas, and response shapes are identical.

Is the output the same as calling OpenAI directly? Yes. Requests are routed to the same upstream model. Response quality and behavior are identical.

What happens when I run out of credits? Requests return a standard 402 error. You can top up in the dashboard with no minimum commitment — credits don't expire.

Can I use GPT-5.5 with LangChain, LlamaIndex, or other frameworks? Yes. Any framework that accepts a custom base_url for OpenAI-compatible providers will work. Most have a one-line config option for this.

Is there a rate limit? Free trial accounts have conservative limits suitable for testing. Paid accounts scale to production throughput. Contact support at hypereal.cloud if you need a higher tier.

Get started

Sign up at hypereal.cloud, create an API key, and run GPT-5.5 in minutes — at a lower cost than calling OpenAI directly, with no code changes to your existing integration.