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GPT-4 Turbo vs Grok-4 Heavy
Comprehensive side-by-side LLM comparison
Both models show comparable benchmark performance. Grok-4 Heavy supports multimodal inputs. GPT-4 Turbo is available on 2 providers. Both models have their strengths depending on your specific coding needs.
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OpenAI
GPT-4 Turbo is a language model developed by OpenAI. It achieves strong performance with an average score of 78.1% across 6 benchmarks. It excels particularly in MGSM (88.5%), HumanEval (87.1%), MMLU (86.5%). It supports a 132K token context window for handling large documents. The model is available through 2 API providers. Released in 2024, it represents OpenAI's latest advancement in AI technology.
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xAI
Grok-4 Heavy is a multimodal language model developed by xAI. It achieves strong performance with an average score of 79.5% across 6 benchmarks. It excels particularly in AIME 2025 (100.0%), HMMT25 (96.7%), GPQA (88.4%). 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-4 Turbo
OpenAI
2024-04-09
Grok-4 Heavy
xAI
2025-07-09
Performance Metrics
Context window and performance specifications
Average performance across 11 common benchmarks
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GPT-4 Turbo
Average Score:42.6%
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Grok-4 Heavy
Average Score:43.4%(+0.8%)
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Knowledge Cutoff
Training data recency comparison
GPT-4 Turbo
2023-12-31
Grok-4 Heavy
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-4 Turbo
2 providers
Azure
Throughput: 97 tok/s
Latency: 0.6ms
OpenAI
Throughput: 100 tok/s
Latency: 0.5ms
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GPT-4 Turbo
Avg Score:42.6%
Providers:2
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Grok-4 Heavy
Avg Score:43.4%(+0.8%)
Providers:0