Claude 3 Opus vs OpenAI o1 Pro

Performance benchmarks + pricing comparison — updated April 2026

Claude 3 Opus

Anthropic

First generation Opus. Highest reasoning capability in the Claude 3 family.

Input	$15.00/M
Output	$75.00/M
Context	200K tokens
Best For	Deep analysis, complex coding tasks
Benchmark	78/100

OpenAI

Premium reasoning model with extended compute. Best-in-class for complex math, science, and advanced coding challenges.

Input	$20.00/M
Output	$80.00/M
Context	200K tokens
Best For	Research-grade problem solving, competition math, complex system design

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

Scenario	Claude 3 Opus	OpenAI o1 Pro	Savings
Small Script (1K lines)	$2.77	$3.10	Claude 3 Opus saves $0.33 (10%)
Medium Feature (10K lines)	$20.25	$23.00	Claude 3 Opus saves $2.75 (12%)
Large Project (50K lines)	$101.25	$115.00	Claude 3 Opus saves $13.75 (12%)
Code Review (5K lines)	$4.50	$5.50	Claude 3 Opus saves $1.00 (18%)

Claude 3 Opus wins on both price and performance — $15.00/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Anthropic's balanced model for coding and general tasks. Best price-performance ratio in the Claude family.

Anthropic's most powerful model. Best for complex reasoning and challenging coding tasks.

Previous generation Sonnet. Still excellent for coding tasks at the same price point.

Fast, cost-effective model for high-volume tasks. Great for code review and simple queries.

First generation Sonnet. Balanced performance for general tasks.

Cheapest Claude model. Fast responses for simple tasks and basic coding.