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Anthropic: Claude Opus 4

by Anthropic

Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new benchmarks in software engineering, achieving leading results on SWE-bench (72.5%) and Terminal-bench (43.2%). Opus 4 supports extended, agentic workflows, handling thousands of task steps continuously for hours without degradation. Read more at the [blog post here](https://www.anthropic.com/news/claude-4)

Avg Score

91.8%

14 answers

Avg Latency

60.9s

10 runs

Pricing

$15.00

input

/

$75.00

output

per 1M tokens

Context

200K

tokens

Alternatives

Models with similar or better quality but different tradeoffs

No alternatives found

Run benchmarks on this model to discover alternatives

Other Models from Anthropic

Compare performance with other models from the same creator

ModelScoreLatencyCost/1M
Anthropic: Claude 3.7 Sonnet95.7%44.5s$9.00
Anthropic: Claude 3.7 Sonnet86.1%16.3s$9.00
Anthropic: Claude Opus 4.585.3%28.8s$15.00
Anthropic: Claude Sonnet 484.0%31.0s$9.00
Anthropic: Claude 3.5 Sonnet82.9%17.7s$18.00
Anthropic: Claude Sonnet 4.582.4%20.5s$9.00
Anthropic: Claude Opus 4.182.1%79.9s$45.00
Anthropic: Claude Haiku 4.580.0%11.3s$3.00
Anthropic: Claude 3.5 Haiku72.6%7.5s$2.40
Anthropic: Claude 3 Haiku63.3%3.4s$0.75
Anthropic: Claude 3.5 Haiku (2024-10-22)——$2.40

Benchmark Performance

How this model performs across different benchmarks

No benchmark data available

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Price vs Performance

Compare cost efficiency across all models

Current model (baseline)
Other models (relative score)
Y-axis shows score difference from shared benchmarks. X-axis uses log scale.

Score Over Time

Performance trends across all benchmark runs

Benchmark Activity

Number of benchmark runs over time

Quickstart

Get started with this model using OpenRouter

View on OpenRouter
import { OpenRouter } from "@openrouter/sdk";

const openrouter = new OpenRouter({
  apiKey: "<OPENROUTER_API_KEY>"
});

const completion = await openrouter.chat.completions.create({
  model: "anthropic/claude-opus-4",
  messages: [
    {
      role: "user",
      content: "Hello!"
    }
  ]
});

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

Get your API key at openrouter.ai/keys