GPT MODEL API

GPT 5.5 API with transparent token pricing.

GPT 5.5 is a balanced flagship option for teams that need strong reasoning, reliable instruction following, and production-ready output with clear per-token pricing.

Get an API key
WorldGate input$0.26per 1M tokens
WorldGate output$1.56per 1M tokens
Referenced list price$0.26 / $1.56input / output
vs. reference0% Cheaperbased on 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 with clear per-token pricing.

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?

$0.26 per one million input tokens and $1.56 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$0.26 input / $1.56 outputGPT 5.6 Terra$0.13 input / $0.78 outputGPT 5.6 Luna$0.05 input / $0.31 output

Ready to test GPT 5.5?

One account. One key. Multiple models.

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