Anthropic: Claude Opus 4.1

Anthropic: Claude Opus 4.1

anthropic · Released Aug 5, 2025 Professional
76.9
Our Score

Performance Profile

Intelligence7.3Technical6.8Value5Content8
Intelligence 7.3/10
Technical 6.8/10
Content 8/10
Value 5/10

Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains in multi-file code refactoring, debugging precision, and detail-oriented reasoning. The model supports extended thinking up to 64K tokens and is optimized for tasks involving research, data analysis, and tool-assisted reasoning.

$15.00 / 1M
Input Price
$75.00 / 1M
Output Price
200,000 tokens
Context Window
32,000 tokens
Max Output

Capabilities

Tool Use Function Calling Vision

Architecture

ModalityText + Image + File → Text
TokenizerClaude

Performance Indices

Source: Artificial Analysis

42 Intelligence Index
36.5 Coding Index
52.8 Agentic Index
80.3 Math Index

Benchmark Scores

Intelligence

GPQA Diamond 80.9% Graduate-level scientific reasoning
HLE 11.9% Humanity's Last Exam
MMLU Pro 88% Multi-task language understanding
AIME 2025 80.3% Competition mathematics (2025)
SciCode 40.9% Scientific computing

Technical

LiveCodeBench 65.4% Live coding evaluation
TerminalBench Hard 34.3% Agentic terminal tasks
τ²-Bench 71.4% Conversational agent benchmark

Content

IFBench 55.4% Instruction following
LCR 66.3% Long-context reasoning

Benchmark data from Artificial Analysis and Hugging Face

Model Information

OpenRouter ID anthropic/claude-opus-4.1
Provideranthropic
Release Date August 5, 2025
Context Length200,000 tokens
Max Completion32,000 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $15.00 $0.015000
Output $75.00 $0.075000

Live Performance

Live endpoint metrics — refreshed every 30 minutes.

1,539ms
Best Latency (TTFT)
24 tok/s
Best Throughput
0/5
Active Endpoints
Available via: Amazon Bedrock, Google, Anthropic

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