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GPT-4o vs Grok-4
Comprehensive side-by-side LLM comparison
GPT-4o leads with 12.7% higher average benchmark score. Grok-4 offers 131.9K more tokens in context window than GPT-4o. GPT-4o is $5.50 cheaper per million tokens. Overall, GPT-4o is the stronger choice for coding tasks.
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OpenAI
GPT-4o is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 77.4% across 8 benchmarks. It excels particularly in MGSM (90.5%), HumanEval (90.2%), MMLU (88.7%). It supports a 132K token context window for handling large documents. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2024, it represents OpenAI's latest advancement in AI technology.
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xAI
Grok-4 is a multimodal language model developed by xAI. It achieves strong performance with an average score of 63.1% across 7 benchmarks. It excels particularly in AIME 2025 (91.7%), HMMT25 (90.0%), GPQA (87.5%). It supports a 264K token context window for handling large documents. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents xAI's latest advancement in AI technology.
1 year newer
GPT-4o
OpenAI
2024-05-13
Grok-4
xAI
2025-07-09
Pricing Comparison
Cost per million tokens (USD)
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GPT-4o
Input:$2.50
Output:$10.00($5.50 cheaper)
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Grok-4
Input:$3.00
Output:$15.00
Performance Metrics
Context window and performance specifications
Average performance across 14 common benchmarks
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GPT-4o
Average Score:44.2%(+12.7%)
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Grok-4
Average Score:31.5%
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Knowledge Cutoff
Training data recency comparison
Grok-4
2024-12-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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GPT-4o
2 providers
Azure
Throughput: 92 tok/s
Latency: 0.54ms
OpenAI
Throughput: 100 tok/s
Latency: 0.5ms
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GPT-4o
Avg Score:44.2%(+12.7%)
Providers:2
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Grok-4
Avg Score:31.5%
Providers:2