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GPT-4.5 vs o3-mini
Comprehensive side-by-side LLM comparison
GPT-4.5 leads with 4.6% higher average benchmark score. o3-mini offers 167.9K more tokens in context window than GPT-4.5. o3-mini is $219.50 cheaper per million tokens. GPT-4.5 supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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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
o3-mini was created as an efficient variant of the o3 reasoning model, designed to provide advanced thinking capabilities with reduced computational requirements. Built to make next-generation reasoning accessible to a broader range of applications, it balances analytical depth with practical speed and cost considerations.
28 days newer
o3-mini
OpenAI
2025-01-30
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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o3-mini
Input:$1.10
Output:$4.40($219.50 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 20 common benchmarks
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GPT-4.5
Average Score:57.1%(+4.6%)
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o3-mini
Average Score:52.5%
Performance comparison across key benchmark categories
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GPT-4.5
Coding38.0%
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o3-mini
Coding49.3%(+11.3%)
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Knowledge Cutoff
Training data recency comparison
o3-mini
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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o3-mini
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GPT-4.5
Avg Score:57.1%(+4.6%)
Providers:1
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o3-mini
Avg Score:52.5%
Providers:2