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GPT-4.5 vs Phi-3.5-MoE-instruct
Comprehensive side-by-side LLM comparison
GPT-4.5 leads with 17.1% higher average benchmark score. GPT-4.5 supports multimodal inputs. 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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Microsoft
Phi-3.5 MoE was created using a mixture-of-experts architecture, designed to provide enhanced capabilities while maintaining efficiency through sparse activation. Built to combine the benefits of larger models with practical computational requirements, it represents Microsoft's exploration of efficient scaling techniques.
6 months newer
Phi-3.5-MoE-instruct
Microsoft
2024-08-23
GPT-4.5
OpenAI
2025-02-27
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Performance Metrics
Context window and performance specifications
Average performance across 5 common benchmarks
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GPT-4.5
Average Score:86.1%(+17.1%)
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Phi-3.5-MoE-instruct
Average Score:69.0%
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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Phi-3.5-MoE-instruct
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GPT-4.5
Avg Score:86.1%(+17.1%)
Providers:1
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Phi-3.5-MoE-instruct
Avg Score:69.0%
Providers:0