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Grok-4 vs Llama 3.1 8B Instruct
Comprehensive side-by-side LLM comparison
Grok-4 leads with 57.1% higher average benchmark score. Grok-4 offers 1.9K more tokens in context window than Llama 3.1 8B Instruct. Llama 3.1 8B Instruct is $17.94 cheaper per million tokens. Grok-4 supports multimodal inputs. Llama 3.1 8B Instruct is available on 9 providers. Overall, Grok-4 is the stronger choice for coding tasks.
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xAI
Grok 4 represents the fourth generation of xAI's language models, developed to continue advancing the frontier of AI reasoning and knowledge. Built to handle increasingly complex tasks with enhanced reliability, it demonstrates xAI's commitment to pushing AI capabilities forward.
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Meta
Llama 3.1 8B was developed as an efficient open-source model, designed to bring capable instruction-following to applications with limited computational resources. Built with 8 billion parameters, it provides a lightweight option for developers seeking reliable performance without the overhead of larger models.
11 months newer
Llama 3.1 8B Instruct
Meta
2024-07-23
Grok-4
xAI
2025-07-09
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Pricing Comparison
Cost per million tokens (USD)
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Grok-4
Input:$3.00
Output:$15.00
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Llama 3.1 8B Instruct
Input:$0.03
Output:$0.03($17.94 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Grok-4
Average Score:87.5%(+57.1%)
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Llama 3.1 8B Instruct
Average Score:30.4%
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Knowledge Cutoff
Training data recency comparison
Llama 3.1 8B Instruct
2023-12-31
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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Grok-4
2 providers
xAI
Throughput: 100 tok/s
Latency: 0.7ms
ZeroEval
Throughput: 100 tok/s
Latency: 0.7ms
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Grok-4
Avg Score:87.5%(+57.1%)
Providers:2
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Llama 3.1 8B Instruct
Avg Score:30.4%
Providers:9