Claude 3.7 Sonnet

Claude 3.7 Sonnet is an advanced large language model with improved reasoning, coding, and problem-solving capabilities. It introduces a hybrid reasoning approach, allowing users to choose between rapid responses and extended, step-by-step processing for complex tasks. The model demonstrates notable improvements in coding, particularly in front-end development and full-stack updates, and excels in agentic workflows, where it can autonomously navigate multi-step processes. Claude 3.7 Sonnet maintains performance parity with its predecessor in standard mode while offering an extended reasoning mode for enhanced accuracy in math, coding, and instruction-following tasks. Read more at the [blog post here](https://www.anthropic.com/news/claude-3-7-sonnet)

by Anthropic

Overview

Quick stats across all benchmark runs.

Score

10 benchmarks

Avg Latency

25.7s

21 requests

Pricing

$3.00 in / $15.00 out

per 1M tokens

Context

200K

tokens

Alternatives

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No alternatives found

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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

Get started with this model using OpenRouter

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

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

const completion = await openrouter.chat.completions.create({
  model: "anthropic/claude-3.7-sonnet",
  messages: [
    {
      role: "user",
      content: "Hello!"
    }
  ]
});

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

Get your API key at openrouter.ai/keys

Other Models from Anthropic

Compare performance with other models from the same creator

ModelLatencyCost/1MScore
Claude Sonnet 4.520.4s$9.0075%
Claude Opus 4.64.2s$15.0072%
Claude Opus 4.528.8s$15.0058%
Claude Sonnet 4.65.0s$9.0057%
Claude Opus 4.73.5s$15.0053%
Claude Haiku 4.511.1s$3.0047%
Claude 3 Haiku3.5s$0.7543%
Claude 3.5 Haiku7.4s$2.4026%
Claude Sonnet 428.3s$9.00
Claude Opus 460.9s$45.00
Claude Opus 4.179.9s$45.00
Claude 3.5 Haiku (2024-10-22)$2.40
Claude Opus 4.7 (Fast)$90.00
Claude Opus 4.6 (Fast)$90.00
Claude 3.5 Sonnet17.7s$18.00