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GPT-4.5 vs GPT-4o mini
Comprehensive side-by-side LLM comparison
GPT-4.5 leads with 16.6% higher average benchmark score. GPT-4o mini offers 12.3K more tokens in context window than GPT-4.5. GPT-4o mini is $224.25 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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OpenAI
GPT-4o Mini was created as a smaller, more efficient variant of GPT-4o, designed to bring multimodal capabilities to applications requiring faster response times and lower costs. Built to democratize access to advanced vision and text understanding, it enables developers to build sophisticated applications with reduced resource requirements.
7 months newer
GPT-4o mini
OpenAI
2024-07-18
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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GPT-4o mini
Input:$0.15
Output:$0.60($224.25 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 6 common benchmarks
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GPT-4.5
Average Score:72.3%(+16.6%)
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GPT-4o mini
Average Score:55.7%
Performance comparison across key benchmark categories
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GPT-4.5
Coding38.0%(+29.3%)
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GPT-4o mini
Coding8.7%
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Knowledge Cutoff
Training data recency comparison
GPT-4o mini
2023-10-01
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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GPT-4o mini
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GPT-4.5
Avg Score:72.3%(+16.6%)
Providers:1
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GPT-4o mini
Avg Score:55.7%
Providers:1