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.

xAI

Grok-2

xAI

Grok-2 is a multimodal language model developed by xAI. It achieves strong performance with an average score of 76.5% across 8 benchmarks. It excels particularly in DocVQA (93.6%), HumanEval (88.4%), MMLU (87.5%). It supports a 136K 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 2024, it represents xAI's latest advancement in AI technology.

xAI

Grok-2

xAI

2024-08-13

OpenAI

GPT-4.5

OpenAI

2025-02-27

6 months newer

Pricing Comparison

Cost per million tokens (USD)

OpenAI

GPT-4.5

Input:$75.00
Output:$150.00
xAI

Grok-2

$213.00 cheaper
Input:$2.00
Output:$10.00

Performance Metrics

Context window and performance specifications

OpenAI

GPT-4.5

Max Context:132.1K
xAI

Grok-2

Larger context
Max Context:136.0K

Average performance across 5 common benchmarks

OpenAI

GPT-4.5

+5.8%
Average Score:79.2%
xAI

Grok-2

Average Score:73.4%

Performance comparison across key benchmark categories

OpenAI

GPT-4.5

code
88.1%
math
+12.1%
84.7%
vision
75.2%
general
59.3%
xAI

Grok-2

code
+0.3%
88.4%
math
72.5%
vision
+4.6%
79.8%
general
+13.7%
73.0%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores

Provider Availability & Performance

Available providers and their performance metrics

OpenAI

GPT-4.5

1 providers

OpenAI

Throughput: 50 tok/s
Latency: 20ms
xAI

Grok-2

1 providers

xAI

Throughput: 85 tok/s
Latency: 0.7ms
OpenAI

GPT-4.5

+5.8%
Avg Score:79.2%
Providers:1
xAI

Grok-2

Avg Score:73.4%
Providers:1