Claude Opus 4.1

Approved Data Classifications

Description

Claude Opus 4.1 is Anthropic's most capable model, an upgrade to Opus 4 focused on agentic tasks, real-world coding, and reasoning. It supports text and image input with a 200K context window and text output, reaches 74.5% on SWE-bench Verified, and is available via the Anthropic API, Amazon Bedrock, and Google Cloud Vertex AI. Pricing matches Opus 4 at $15 per million input tokens and $75 per million output tokens.

Capabilities

Model	Training Data	Input	Output	Context Length	Cost (per 1 million tokens)
claude-4.1-opus	Not Disclosed	Image, Text	Text	200,000	$15.00/1M input $75.00/1M output

info

• 1M represents 1 Million Tokens
• All prices listed are based on 1 Million Tokens
• Anthropic API model ID: claude-opus-4-1-20250805 (Bedrock: anthropic.claude-opus-4-1-20250805-v1:0, Vertex AI: claude-opus-4-1@20250805)

Availability

Cloud Provider

Usage

curl

curl -X POST https://api.ai.it.ufl.edu/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer <API_TOKEN>" \
-d '{
    "model": "claude-4.1-opus",
    "messages": [
        {
            "role": "system",
            "content": "You are a helpful assistant."
        },
        {
            "role": "user",
            "content": "Write a haiku about an Alligator."
        }
    ]
}'

python

from openai import OpenAI
  client = OpenAI(
      api_key="your_api_key",
      base_url="https://api.ai.it.ufl.edu/v1"
  )

  response = client.chat.completions.create(
      model="claude-4.1-opus", # model to send to the proxy
      messages = [
          { role: "system", content: "You are a helpful assistant." },
          {
              "role": "user",
              "content": "Write a haiku about an Alligator."
          }
      ]
  )

  print(response.choices[0].message)

javascript

import OpenAI from 'openai';

const openai = new OpenAI({
  apiKey: 'your_api_key',
  baseURL: 'https://api.ai.it.ufl.edu/v1'
});

const completion = await openai.chat.completions.create({
    model: "claude-4.1-opus",
    messages: [
        { role: "system", content: "You are a helpful assistant." },
        {
            role: "user",
            content: "Write a haiku about an Alligator.",
        },
    ],
});

print(completion.choices[0].message)

When to use

• Highest-accuracy coding and agentic workflows
• Complex reasoning and multi-step analysis
• Large-context document and codebase review
• Research and data analysis tasks that need precision
• High-stakes enterprise decision support
• Multimodal understanding with text and images

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References

1. Anthropic - Claude Opus 4.1 announcement
   https://www.anthropic.com/news/claude-opus-4-1
2. Anthropic - Models overview (model IDs and context)
   https://docs.anthropic.com/en/docs/about-claude/models/all-models
3. Anthropic - Pricing
   https://platform.claude.com/docs/en/about-claude/pricing