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GPT-4o vs Grok 3

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OpenAI · 128k context  |  xAI · 128k context

Pricing Comparison

MetricGPT-4oGrok 3
Input / 1M tokens$2.5$3
Output / 1M tokens$10$15
Cached input / 1M$1.25—
Context window128k128k
ProviderOpenAIxAI

Cost Calculator

💰 GPT-4o saves $900.00/month (29% cheaper)
OGPT-4oCHEAPER
Per request$0.007500
Daily$75.00
Monthly$2,250.00
Yearly$27,375.00
XGrok 3
Per request$0.0105
Daily$105.00
Monthly$3,150.00
Yearly$38,325.00
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Choose GPT-4o when…

  • ✓ Cheaper for RAG & document retrieval (lower input cost)
  • ✓ 17% cheaper per input token
  • ✓ Cheaper for generation-heavy workloads (lower output cost)
  • ✓ Supports prompt caching — save up to 90% on repeated prompts
  • ✓ Optimized for: Multimodal tasks
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Choose Grok 3 when…

  • ✓ Larger context window (128k vs 128k) — better for long documents
  • ✓ Optimized for: Real-time web research

Related Comparisons

GPT-4o vs GPT-5GPT-4o vs GPT-5 MiniGPT-4o vs GPT-4.1GPT-4o vs GPT-4.1 MiniGrok 3 vs GPT-5Grok 3 vs GPT-5 Mini