xAI: Grok 4.3 vs xAI: Grok 3 Beta
Head-to-head API cost, context, and performance comparison. Synced at 1:45:05 AM.
Executive Summary
When evaluating xAI: Grok 4.3 against xAI: Grok 3 Beta, the pricing structure is a key differentiator. xAI: Grok 4.3 is approximately 79% more cost-effective per 1 million tokens overall.
However, when looking at raw reasoning capabilities, xAI: Grok 4.3 leads with a statistical ELO score of 1579. For tasks involving complex logic, coding, or instruction-following, developers might prefer xAI: Grok 4.3, 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, xAI: Grok 4.3 is statistically superior. However, if API burn rate is the primary concern, xAI: Grok 4.3 wins out aggressively in pricing.
People Also Ask
Is xAI: Grok 4.3 cheaper than xAI: Grok 3 Beta?
Yes. xAI: Grok 4.3 is cheaper for both input and output generation compared to xAI: Grok 3 Beta. Exploring alternatives often yields cost reductions.
Which model has the larger context window?
The xAI: Grok 4.3 model has the advantage in memory, offering a massive 1,000,000 token limit for document ingestion.