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GPT-4.5 vs o1-pro
Comprehensive side-by-side LLM comparison
o1-pro leads with 29.4% higher average benchmark score. Overall, o1-pro 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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OpenAI
o1-pro was developed as an enhanced version of the o1 reasoning model, designed to provide extended reasoning capabilities with greater depth and reliability. Built for professionals and advanced users tackling complex analytical tasks, it offers enhanced thinking time and reasoning quality for the most demanding applications.
2 months newer
o1-pro
OpenAI
2024-12-17
GPT-4.5
OpenAI
2025-02-27
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Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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GPT-4.5
Average Score:53.1%
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o1-pro
Average Score:82.5%(+29.4%)
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Knowledge Cutoff
Training data recency comparison
o1-pro
2023-09-30
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-4.5
1 providers
OpenAI
Throughput: 50 tok/s
Latency: 20ms
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o1-pro
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GPT-4.5
Avg Score:53.1%
Providers:1
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o1-pro
Avg Score:82.5%(+29.4%)
Providers:0