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GPT-4.5 vs o3-mini
Comprehensive side-by-side LLM comparison
GPT-4.5 leads with 6.8% 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. Overall, GPT-4.5 is the stronger choice for coding tasks.
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OpenAI
GPT-4.5 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 63.1% across 27 benchmarks. It excels particularly in GSM8k (97.0%), MMLU (90.8%), CharXiv-D (90.0%). It supports a 132K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents OpenAI's latest advancement in AI technology.
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OpenAI
o3-mini is a language model developed by OpenAI. The model shows competitive results across 26 benchmarks. It excels particularly in COLLIE (98.7%), MATH (97.9%), IFEval (93.9%). It supports a 300K token context window for handling large documents. The model is available through 2 API providers. Released in 2025, it represents OpenAI's latest advancement in AI technology.
28 days newer
o3-mini
OpenAI
2025-01-30
GPT-4.5
OpenAI
2025-02-27
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 33 common benchmarks
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GPT-4.5
Average Score:51.6%(+6.8%)
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o3-mini
Average Score:44.9%
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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:51.6%(+6.8%)
Providers:1
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o3-mini
Avg Score:44.9%
Providers:2