Skip to content
AI Viewer
Model comparison Synced Apr 6, 2026

Anthropic: Claude Opus 4.1 vs OpenAI: o1

Side-by-side comparison of Anthropic: Claude Opus 4.1 and OpenAI: o1. Compare pricing, context window, capabilities, and find out which is better for your workflow.

Verdict

moderate confidence

OpenAI: o1 leads overall

OpenAI: o1 leads in price and max output, making it the stronger choice for most workflows. Anthropic: Claude Opus 4.1 remains a solid alternative depending on your specific needs.

Best for with Anthropic: Claude Opus 4.1

No clear advantages identified

Best for with OpenAI: o1

Budget-conscious workflowsLong-form content generation

Side-by-side

Technical specifications

Anthropic: Claude Opus 4.1 OpenAI: o1
Provider Anthropic OpenAI
Input price $15/M $15/M
Output price $75/M $60/M
Context window 200K 200K
Max output 32K 100K
Capabilities
Tool useVisionReasoning
Tool useVisionReasoning
Released Aug 5, 2025 Dec 17, 2024

Scoring breakdown

How each dimension compares

Price

OpenAI: o1 leads

Anthropic: Claude Opus 4.1

$75/M tokens

OpenAI: o1

$60/M tokens

Context Window

Anthropic: Claude Opus 4.1

200K tokens

OpenAI: o1

200K tokens

Capabilities

Anthropic: Claude Opus 4.1

3/4

OpenAI: o1

3/4

Max Output

OpenAI: o1 leads

Anthropic: Claude Opus 4.1

32K tokens

OpenAI: o1

100K tokens

Recency

Anthropic: Claude Opus 4.1

Aug 2025

OpenAI: o1

Dec 2024

Related comparisons