Deep Technical Coding
With a 92.5% HumanEval score, the 4.1 model manages complex architectural planning and multi-file refactoring, allowing developers to automate technical debt reduction and repository management.
claude-opus-4-1-20250805
The Claude Opus 4.1 API delivers Anthropic’s peak cognitive performance. With a 200k context window and Computer Use 2.0, this 4.1 model excels at multi-step reasoning, complex coding, and nuanced document analysis for high-stakes enterprise agents.
$ 12
$ 15
text
$ 60
$ 75
text
API
Text To Text
curl --location 'https://gptproto.com/v1/messages' \
--header 'Authorization: GPTPROTO_API_KEY' \
--header 'Content-Type: application/json' \
--header 'anthropic-version: 2023-06-01' \
--data '{
"model": "claude-opus-4-1-20250805",
"max_tokens": 1024,
"messages": [
{
"role": "user",
"content": "Who are you?"
}
]
}'
Claude Opus 4.1 API Standout Features
The 4.1 Opus model brings unmatched reasoning and multimodal capabilities to your application.
Advanced Cognitive Reasoning
The 4.1 architecture reduces hallucinations in legal and medical contexts by using state-of-the-art refusal mechanisms, ensuring Claude provides trustworthy synthetic reports for high-stakes tasks.
Visual Logic & Multimodality
Process 200k context windows containing blueprints, charts, and video frames. Claude 4.1 provides high spatial accuracy for visual logic tasks, identifying patterns across massive unstructured sets.
Agentic Computer Use 2.0
Claude 4.1 executes mouse and keyboard commands with 25% fewer errors than previous versions, perfect for building autonomous agents that navigate complex web interfaces and software.
Build with claude opus 4.1 20250805 in Minutes
Follow these simple steps to set up your account, get credits, and start sending API requests to claude opus 4.1 20250805 via GPT Proto.
Sign up
Create your free GPT Proto account to begin. You can set up an organization for your team at any time.
Top up
Your balance can be used across all models on the platform, including claude opus 4.1 20250805, giving you the flexibility to experiment and scale as needed.
Generate your API key
In your dashboard, create an API key — you'll need it to authenticate when making requests to claude opus 4.1 20250805.
Make your first API call
Use your API key with our sample code to send a request to claude opus 4.1 20250805 via GPT Proto and see instant AI-powered results.
Claude Opus 4.1 API FAQ
Related Articles
More Blogs
Claude Opus 4.6 Deep Dive: Exploring the 1M Context Window and Advanced Agentic Capabilities
Discover how Claude Opus 4.6 is revolutionizing AI development with its massive 1-million-token context window and record-breaking agentic performance benchmarks. Learn how to leverage agent-teams for autonomous coding and complex problem-solving workflows.
Claude Opus 4.6: Agentic AI Coding Guide
Explore how Claude Opus 4.6 revolutionizes software architecture with a 1M context window and agentic capabilities. Discover its true coding power today!
Claude Code Revolution: How Anthropic is Transforming Software Development with Agents
Discover how Claude Code is reshaping GitHub commits and the software landscape. Explore the shift toward agentic computing, token efficiency, and why Anthropic is leading the race against tech giants like Microsoft.
Claude Opus 4.6 Codes a C Compiler Autonomously
Discover how Claude Opus 4.6 successfully built a complex C compiler autonomously. Learn about the shift from manual coding to agentic teams and the future of scalable AI-driven software development.