Claude Opus 4.1 - The Most Powerful Programming Model from Anthropic

What is Claude Opus 4.1?

Claude Opus 4.1 Yes Anthropic The company introduces an advanced large-scale language model designed for efficient processing of complex tasks. The model excels in programming, generating high-quality code, supporting up to 32k of single output, and adapting to a wide range of programming styles. The model has powerful autonomous decision-making capabilities to orchestrate complex enterprise workflows and manage multi-channel marketing campaigns. In terms of content creation, the model supports the generation of natural and fluent text, and is particularly good at creative writing.Claude Opus 4.1 has excellent reasoning capabilities, supporting instant response and step-by-step reasoning, so that users can choose flexibly according to their needs. The model is extremely secure, with a harmless response rate of 98.76%, effectively rejecting offending requests.Claude Opus 4.1 has performed well in several benchmarks, and is one of the leading language models available today.

Key features of Claude Opus 4.1

• Efficient ProgrammingThe program can handle complex programming tasks, generate high-quality code, and support up to 32k of output in a single pass to accommodate different programming styles, significantly improving development efficiency.
• autonomous decision-making: The model has powerful Agent capabilities to accurately manage multi-channel campaigns and orchestrate complex enterprise workflows to handle long time-horizon tasks.
• Deep Content Creation: The model generates naturally flowing, high-quality text, excels in creative writing, and creates stories with depth and rich characters.
• Powerful search and research capabilities: Ability to work independently on hours of research assignments, analyzing multiple sources of information such as patent databases, academic papers, and market reports to provide comprehensive insights and strategic recommendations.
• Flexible reasoning: Supporting both instant and extended reasoning, users choose the appropriate reasoning method based on task requirements, while API users can finely control the reasoning budget to optimize cost and performance.
• High security and compliance: Performs well in security evaluations, reliably denying requests that violate the usage policy with an innocuous response rate of 98.76%.

Claude Opus 4.1 official website address

• Project website:: https://www.anthropic.com/claude/opus
• Technical Papers:: https://assets.anthropic.com/m/4c024b86c698d3d4/original/Claude-4-1-System-Card.pdf

Performance of the Claude Opus 4.1

• Excellent programming skills: In the SWE-bench programming benchmark, Claude Opus 4.1 scored a whopping 74.5%, a 2-percentage-point improvement over its predecessor, Opus 4, and well ahead of OpenAI's GPT-4.1 (54.6%) and Sonnet 3.7 (62.3%).
• Highly capable of handling long-duration tasks: In TAU-bench tests, Claude Opus 4.1 demonstrated its ability to handle complex multi-step tasks with precision, autonomously managing multi-channel campaigns and cross-functional enterprise workflows, and demonstrating its ability to handle long-duration tasks.
• Leading Reasoning: In benchmarks of Agentic coding and reasoning capabilities, Claude Opus 4.1 outperforms in most metrics Opus 4, OpenAI o3 and Gemini 2.5 Pro and other competing models.
• High security: In a single round of testing, Claude Opus 4.1 achieves an innocuous response rate of 98.76%, which is a significant improvement over Opus 4's 97.27%, showing stronger malicious request rejection capabilities and security.

How to use Claude Opus 4.1

• Anthropic Official Platform Usage:Claude Opus 4.1 is now available to paid users, including Pro, Max, Team and Enterprise users.
  • Register and Login: Access Anthropic Official Website, register and log in to your account.
  • Select Subscription Plan: Select the appropriate subscription plan (e.g., Pro, Max, Team, or Enterprise).
  • Creating Tasks: Create tasks on the platform, entering specific requirements (e.g., programming tasks, content creation tasks, etc.).
  • Submission of mandates: After submitting a task, the model generates the appropriate output based on the input.
• API Interface Usage
  • Register and get the API key: Register and get your API key on the official Anthropic website.
  • Calling the API: Call the API in a programming language (e.g. Python) to send requests to the model.

import requests

api_key = "YOUR_API_KEY"
headers = {
    "Authorization": f"Bearer {api_key}",
    "Content-Type": "application/json"
}
data = {
    "model": "claude-opus-4-1-20250805",
    "prompt": "Write a short story about a futuristic city.",
    "max_tokens": 32000
}
response = requests.post("https://api.anthropic.com/v1/complete", headers=headers, json=data)
print(response.json())

• • Outcome of the process: Receive the results returned by the model and process them.
• Cloud service platform utilization: Claude Opus 4.1 has been integrated into cloud service platforms (e.g., Amazon Bedrock or Google Cloud's Vertex AI) through which users can access the model.
  • Create an account: Create an account and sign in on a cloud services platform such as Amazon Bedrock or Google Cloud's Vertex AI.
  • Select Modeling Services: Select Anthropic's modeling service (e.g. Claude Opus 4.1).
  • Configuring Task Parameters: Configure the task parameters and submit the task.
  • View Results: View and process the results generated by the model with the tools provided by the cloud service platform.

Core Benefits of Claude Opus 4.1

• Excellent programming skills: In the SWE-bench programming benchmark, Claude Opus 4.1 scores a whopping 74.5%, significantly outperforming similar models, and supports up to 32k single outputs to efficiently accomplish complex programming tasks.
• Strong agency capabilities: Claude Opus 4.1 is able to autonomously manage multi-channel marketing campaigns and cross-functional enterprise workflows, handling complex, long-running tasks with precision and demonstrating superior complex task management capabilities.
• Flexibility in reasoningThe API supports instant response and extended reasoning, allowing users to choose the appropriate reasoning method based on task requirements. API users can finely control the reasoning budget to optimize cost and performance.
• Excellent research skills: Ability to work independently on hours of research assignments, analyze information from multiple sources, and provide comprehensive insights and strategic recommendations, with particular excellence in detail tracking.
• Content creation of high quality: Supports the generation of natural-flowing, high-quality human-level text, and especially excels in creative writing, outperforming previous-generation models by generating more natural and coherent text.
• High security: An innocuous response rate of 98.76% reliably denies requests that violate usage policies, and ensures that model behavior is consistent with human values and usage policies through reinforcement learning and security training.
• Good feedback from users: In real-world scenarios, Claude Opus 4.1 has received positive feedback from users, such as excellent performance in multi-file code refactoring and locating problems in large code bases, and Anthropic plans to continue to improve the model.

People for Claude Opus 4.1

• software developer: Claude Opus 4.1 provides superior programming capabilities, supports complex code generation and refactoring, and significantly improves development efficiency.
• Corporate decision makers: The model has powerful agent capabilities to autonomously manage multi-channel marketing campaigns and complex workflows, helping to improve the operational efficiency of enterprises.
• research worker: The model independently performs in-depth research tasks, analyzes information from multiple sources, and provides comprehensive insights for market and academic research.
• content creator: Generate natural-flowing, high-quality text, and excel especially in creative writing, quickly generating engaging stories and copy.
• educator: As an educational tool, it provides personalized learning suggestions and learning materials to enhance teaching effectiveness and learning experience.