GPT MODEL API

GPT 5.5 API at a lower token cost.

GPT 5.5 is a balanced flagship option for teams that need strong reasoning, reliable instruction following, and production-ready output without paying the full referenced list price.

Get an API key
WorldGate input$1.00per 1M tokens
WorldGate output$6.00per 1M tokens
Referenced list price$5.00 / $30.00input / output
DiscountUp to 80%using displayed reference rates

MODEL OVERVIEW

High-capability GPT reasoning for production workloads.

GPT 5.5 is a balanced flagship option for teams that need strong reasoning, reliable instruction following, and production-ready output without paying the full referenced list price.

WorldGate bills actual input, output, and eligible cached tokens against a prepaid balance. The published price is the usage rate used by server-side billing.

OPENAI-COMPATIBLE

Use GPT 5.5 with the client you know.

Keep credentials on your server. Replace the base URL and select the WorldGate model identifier.

const client = new OpenAI({
  apiKey: process.env.WORLDGATE_API_KEY,
  baseURL: "https://worldgateapi.com/v1",
});

const response = await client.chat.completions.create({
  model: "gpt-5.5",
  messages: [{ role: "user", content: "Hello" }],
});

QUESTIONS

GPT 5.5 API FAQ

How much does GPT 5.5 cost?

$1.00 per one million input tokens and $6.00 per one million output tokens. Verify current pricing before purchasing.

Is it OpenAI-compatible?

Yes. Use the WorldGate base URL, server-side API key, and model identifier gpt-5.5.

When should I choose this model?

High-capability GPT reasoning for production workloads. Test representative prompts before moving production traffic.

Related GPT APIs

GPT 5.6 Sol$1.00 input / $6.00 outputGPT 5.6 Terra$0.50 input / $3.00 outputGPT 5.6 Luna$0.20 input / $1.20 output

Ready to test GPT 5.5?

One account. One key. Multiple models.

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