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OpenAI: GPT-4o vs Anthropic: Claude Opus 4.1

Head-to-head API cost, context, and performance comparison. Synced at 11:18:09 AM.

Executive Summary

When evaluating OpenAI: GPT-4o against Anthropic: Claude Opus 4.1, the pricing structure is a key differentiator. OpenAI: GPT-4o is approximately 86% more cost-effective per 1 million tokens overall.

However, when looking at raw reasoning capabilities, Anthropic: Claude Opus 4.1 leads with a statistical ELO score of 1320. For tasks involving complex logic, coding, or instruction-following, developers might prefer Anthropic: Claude Opus 4.1, provided their budget allows for the API burn rate.

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Raw Technical comparison

Metric
OpenAI: GPT-4o
Anthropic: Claude Opus 4.1
Performance (ELO)
1315
1320
Input Cost / 1M
$2.50
$15.00
Output Cost / 1M
$10.00
$75.00
Context Window
128,000 tokens
200,000 tokens

Verdict

If you are looking for pure performance and capability, Anthropic: Claude Opus 4.1 is statistically superior. However, if API burn rate is the primary concern, OpenAI: GPT-4o wins out aggressively in pricing.

People Also Ask

Is OpenAI: GPT-4o cheaper than Anthropic: Claude Opus 4.1?

Yes. OpenAI: GPT-4o is cheaper for both input and output generation compared to Anthropic: Claude Opus 4.1. Exploring alternatives often yields cost reductions.

Which model has the larger context window?

The Anthropic: Claude Opus 4.1 model has the advantage in memory, offering a massive 200,000 token limit for document ingestion.

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