Claude Opus 4 - In-Depth Overview

Anthropic · Claude 4

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Model ID: claude-opus-4-0

Get all the details on Claude Opus 4, an AI model from Anthropic. This page covers its token limits, pricing structure, key capabilities such as Code Generation, multilingual, long_context, available API code samples, and performance strengths.

Key Metrics

Input Limit

200K tokens

Output Limit

32K tokens

Input Cost

$15.00/1M

Output Cost

$75.00/1M

Sample API Code

import anthropic;client = anthropic.Anthropic(api_key="my_api_key",);message = client.messages.create(model="claude-opus-4-20250514",max_tokens=1024,messages=[{"role": "user", "content": "Hello, Claude"}]);print(message.content)

Required Libraries

anthropic

@anthropic-ai/sdk

Benchmarks

Benchmark	Score	Source	Notes
livebench global average	71.52	LiveBench	Score for Claude 4 Opus
livebench reasoning average	56.44	LiveBench	Score for Claude 4 Opus
livebench coding average	72.87	LiveBench	Score for Claude 4 Opus
livebench mathematics average	78.79	LiveBench	Score for Claude 4 Opus
livebench data analysis average	66.51	LiveBench	Score for Claude 4 Opus
livebench language average	76.11	LiveBench	Score for Claude 4 Opus
livebench if average	78.38	LiveBench	Score for Claude 4 Opus
livebench global average	79.53	LiveBench	Score for Claude 4 Opus Thinking (with extended thinking enabled)
livebench reasoning average	90.47	LiveBench	Score for Claude 4 Opus Thinking (with extended thinking enabled)
livebench coding average	73.25	LiveBench	Score for Claude 4 Opus Thinking (with extended thinking enabled)
livebench mathematics average	88.25	LiveBench	Score for Claude 4 Opus Thinking (with extended thinking enabled)
livebench data analysis average	70.73	LiveBench	Score for Claude 4 Opus Thinking (with extended thinking enabled)
livebench language average	73.72	LiveBench	Score for Claude 4 Opus Thinking (with extended thinking enabled)
livebench if average	80.74	LiveBench	Score for Claude 4 Opus Thinking (with extended thinking enabled)

Notes

Claude Opus 4 is Anthropic's most powerful and capable model, setting new standards in complex reasoning and advanced coding. It delivers top-tier results in reasoning, coding, multilingual tasks, long-context handling, honesty, and image processing. It is ideal for applications requiring rich, human-like interactions. Aliases (like claude-opus-4-0) point to the latest snapshot but specific model versions are recommended for production. Streaming Messages API is suggested for longer outputs to avoid timeouts. Batch API offers a 50% discount on input/output tokens. Tool use incurs additional system prompt tokens.