Comprehensive side-by-side LLM comparison
Claude Opus 4 leads with 14.2% higher average benchmark score. GPT-4.1 offers 752.3K more tokens in context window than Claude Opus 4. GPT-4.1 is $80.00 cheaper per million tokens. Claude Opus 4 is available on 4 providers. Overall, Claude Opus 4 is the stronger choice for coding tasks.
Anthropic
Claude Opus 4 was developed as the flagship model in the Claude 4 generation, designed to push the boundaries of AI capability in complex reasoning, analysis, and multi-step problem-solving. Built to handle the most demanding enterprise tasks, it represents Anthropic's highest tier of intelligence and capability.
OpenAI
GPT-4.1 represents an iterative improvement in the GPT-4 series, developed to refine the foundational capabilities established by GPT-4. Built to incorporate learnings and optimizations from the deployment of previous versions, it continues the evolution of OpenAI's flagship model line with enhanced reliability and performance.
1 month newer

GPT-4.1
OpenAI
2025-04-14

Claude Opus 4
Anthropic
2025-05-22
Cost per million tokens (USD)

Claude Opus 4

GPT-4.1
Context window and performance specifications
Average performance across 6 common benchmarks

Claude Opus 4

GPT-4.1
Performance comparison across key benchmark categories

Claude Opus 4

GPT-4.1
GPT-4.1
2024-06-01
Available providers and their performance metrics

Claude Opus 4
Anthropic
Bedrock
ZeroEval

Claude Opus 4

GPT-4.1

Claude Opus 4

GPT-4.1

GPT-4.1
OpenAI