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Anthropic·Claude Opus family
Claude Opus 5
proprietaryReleased Jul 21, 2026
Anthropic's new state-of-the-art model, a thoughtful and proactive successor to Opus 4.8 that approaches Claude Fable 5's frontier intelligence at half the price. Delivers major gains in coding, agentic workflows, computer use, knowledge work, and scientific research, with strong self-verification and iteration, configurable effort settings, and Anthropic's best alignment and safety results to date. Also available in a Fast mode that runs around 2.5x the default speed.
ChatText completionFunction callingVisionCode generationReasoningtext · image · code
Provider (1)
Sorted by total cost (input + output per 1M tokens). Select a row to view provider details.
| Provider | Pricing (per 1M) | Rate limits | Regions | Health | Latency |
|---|---|---|---|---|---|
| In: $5.00Out: $25.00 | 50 RPM / 80K TPM | us-east-1eu-west-1 | Healthy | 0ms |
Quick start
Use this model via Anthropic with an OpenAI-compatible SDK.
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.anthropic.com/v1",
apiKey: process.env.ANTHROPIC_API_KEY,
});
const response = await client.chat.completions.create({
model: "claude-opus-5",
messages: [
{ role: "user", content: "Hello!" }
],
});
console.log(response.choices[0].message.content);Using Anthropic API · OpenAI-compatible SDK