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GPT-4 vs GPT-4.5
Comprehensive side-by-side LLM comparison
GPT-4.5 leads with 21.4% higher average benchmark score. GPT-4.5 offers 66.6K more tokens in context window than GPT-4. GPT-4 is $135.00 cheaper per million tokens. Overall, GPT-4.5 is the stronger choice for coding tasks.
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OpenAI
GPT-4 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 77.7% across 12 benchmarks. It excels particularly in AI2 Reasoning Challenge (ARC) (96.3%), HellaSwag (95.3%), Uniform Bar Exam (90.0%). The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly.
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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.
1 year newer
GPT-4
OpenAI
2023-06-13
GPT-4.5
OpenAI
2025-02-27
Pricing Comparison
Cost per million tokens (USD)
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GPT-4
Input:$30.00
Output:$60.00($135.00 cheaper)
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GPT-4.5
Input:$75.00
Output:$150.00
Performance Metrics
Context window and performance specifications
Average performance across 36 common benchmarks
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GPT-4
Average Score:25.9%
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GPT-4.5
Average Score:47.3%(+21.4%)
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Knowledge Cutoff
Training data recency comparison
GPT-4
2022-12-31
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
2 providers
Azure
Throughput: 104 tok/s
Latency: 0.3ms
OpenAI
Throughput: 100 tok/s
Latency: 0.5ms
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GPT-4
Avg Score:25.9%
Providers:2
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GPT-4.5
Avg Score:47.3%(+21.4%)
Providers:1