Model Comparison

Comprehensive side-by-side analysis of model capabilities and performance

OpenAI

GPT-4.5

OpenAI

GPT-4.5 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 64.1% across 26 benchmarks. It excels particularly in GSM8k (97.0%), MMLU (90.8%), CharXiv-D (90.0%). The model shows particular specialization in code tasks with an average performance of 88.1%. 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.

OpenAI

GPT-5 nano

OpenAI

GPT-5 nano is a multimodal language model developed by OpenAI. The model shows competitive results across 5 benchmarks. It excels particularly in AIME 2025 (85.2%), HMMT 2025 (75.6%), GPQA (71.2%). It supports a 528K token context window for handling large documents. The model is available through 2 API providers. 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.

OpenAI

GPT-4.5

OpenAI

2025-02-27

OpenAI

GPT-5 nano

OpenAI

2025-08-07

5 months newer

Pricing Comparison

Cost per million tokens (USD)

OpenAI

GPT-4.5

Input:$75.00
Output:$150.00
OpenAI

GPT-5 nano

$224.55 cheaper
Input:$0.05
Output:$0.40

Performance Metrics

Context window and performance specifications

OpenAI

GPT-4.5

Max Context:132.1K
OpenAI

GPT-5 nano

Larger context
Max Context:528.0K

Average performance across 1 common benchmarks

OpenAI

GPT-4.5

Average Score:69.5%
OpenAI

GPT-5 nano

+1.7%
Average Score:71.2%

Performance comparison across key benchmark categories

OpenAI

GPT-4.5

math
+75.1%
84.7%
general
59.3%
OpenAI

GPT-5 nano

math
9.6%
general
+0.9%
60.2%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores
Knowledge Cutoff
Training data recency comparison

GPT-5 nano

2024-05-30

More recent knowledge cutoff means awareness of newer technologies and frameworks

Provider Availability & Performance

Available providers and their performance metrics

OpenAI

GPT-4.5

1 providers

OpenAI

Throughput: 50 tok/s
Latency: 20ms
OpenAI

GPT-5 nano

2 providers

ZeroEval

Throughput: 500 tok/s
Latency: 0.3ms

OpenAI

Throughput: 500 tok/s
Latency: 0.3ms
OpenAI

GPT-4.5

Avg Score:69.5%
Providers:1
OpenAI

GPT-5 nano

+1.7%
Avg Score:71.2%
Providers:2