CLAUDE MODEL API

Claude Opus 5 API with transparent token pricing.

Claude Opus 5 is built for complex reasoning, careful writing, and agentic tasks. WorldGate offers the model through its OpenAI-compatible gateway at $0.26 per million input tokens and $1.56 per million output tokens.

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

Premium Claude reasoning at a $0.26 / $1.56 fixed rate.

Claude Opus 5 is built for complex reasoning, careful writing, and agentic tasks. WorldGate offers the model through its OpenAI-compatible gateway at $0.26 per million input tokens and $1.56 per million output tokens.

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 Claude Opus 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: "claude-opus-5",
  messages: [{ role: "user", content: "Hello" }],
});

QUESTIONS

Claude Opus 5 API FAQ

How much does Claude Opus 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 claude-opus-5.

When should I choose this model?

Premium Claude reasoning at a $0.26 / $1.56 fixed rate. Test representative prompts before moving production traffic.

Related Claude APIs

Claude Fable 5$3.25 input / $9.10 outputClaude Opus 4.8$0.26 input / $1.56 outputClaude Opus 4.7$0.26 input / $1.56 output

Cheap Claude Opus 5 guides

Claude Code API setupEnvironment variables and troubleshootingCheap Claude Opus 5Launch pricing and setupCheap Claude keyPrepaid API accessSubscription alternativePay-as-you-go comparison

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