xAI: Grok 4 vs Anthropic: Claude Opus 4.1
Head-to-head API cost, context, and performance comparison. Synced at 12:39:51 PM.
Executive Summary
When evaluating xAI: Grok 4 against Anthropic: Claude Opus 4.1, the pricing structure is a key differentiator. xAI: Grok 4 is approximately 80% 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
Verdict
If you are looking for pure performance and capability, Tie is statistically superior. However, if API burn rate is the primary concern, xAI: Grok 4 wins out aggressively in pricing.
People Also Ask
Is xAI: Grok 4 cheaper than Anthropic: Claude Opus 4.1?
Yes. xAI: Grok 4 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 xAI: Grok 4 model has the advantage in memory, offering a massive 256,000 token limit for document ingestion.