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GPT-4.5 vs Grok-2
Comprehensive side-by-side LLM comparison
GPT-4.5 leads with 5.8% higher average benchmark score. Grok-2 offers 3.9K more tokens in context window than GPT-4.5. Grok-2 is $213.00 cheaper per million tokens. Overall, GPT-4.5 is the stronger choice for coding tasks.
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OpenAI
GPT-4.5 was developed as an intermediate advancement between GPT-4 and GPT-5, designed to incorporate incremental improvements in reasoning, factuality, and instruction-following. Built to bridge generational capabilities while maintaining compatibility with existing applications, it represents a refinement of the GPT-4 architecture with enhanced performance characteristics.
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xAI
Grok 2 was developed as the second generation of xAI's language model family, designed to provide enhanced reasoning, knowledge, and conversational abilities. Built with architectural improvements and expanded training, it represents a significant advancement in xAI's model capabilities.
6 months newer
Grok-2
xAI
2024-08-13
GPT-4.5
OpenAI
2025-02-27
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Pricing Comparison
Cost per million tokens (USD)
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GPT-4.5
Input:$75.00
Output:$150.00
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Grok-2
Input:$2.00
Output:$10.00($213.00 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 5 common benchmarks
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GPT-4.5
Average Score:79.2%(+5.8%)
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Grok-2
Average Score:73.4%
Provider Availability & Performance
Available providers and their performance metrics
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GPT-4.5
1 providers
OpenAI
Throughput: 50 tok/s
Latency: 20ms
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Grok-2
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GPT-4.5
Avg Score:79.2%(+5.8%)
Providers:1
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Grok-2
Avg Score:73.4%
Providers:1