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GPT-4.5 vs o4-mini
Comprehensive side-by-side LLM comparison
o4-mini leads with 16.6% higher average benchmark score. o4-mini offers 167.9K more tokens in context window than GPT-4.5. o4-mini is $219.50 cheaper per million tokens. Overall, o4-mini 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
o4-mini was created as part of the next generation of OpenAI's reasoning models, designed to continue advancing the balance between analytical capability and operational efficiency. Built to bring cutting-edge reasoning techniques to applications requiring quick turnaround, it represents the evolution of compact reasoning-focused models.
1 month newer
GPT-4.5
OpenAI
2025-02-27
o4-mini
OpenAI
2025-04-16
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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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o4-mini
Input:$1.10
Output:$4.40($219.50 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 9 common benchmarks
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GPT-4.5
Average Score:56.7%
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o4-mini
Average Score:73.3%(+16.6%)
Performance comparison across key benchmark categories
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GPT-4.5
Coding38.0%
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o4-mini
Coding68.1%(+30.1%)
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Knowledge Cutoff
Training data recency comparison
o4-mini
2024-05-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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GPT-4.5
1 providers
OpenAI
Throughput: 50 tok/s
Latency: 20ms
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o4-mini
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GPT-4.5
Avg Score:56.7%
Providers:1
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o4-mini
Avg Score:73.3%(+16.6%)
Providers:1