Model Comparison

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

OpenAI

GPT-4

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 shows particular specialization in reasoning tasks with an average performance of 93.0%. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly.

xAI

Grok-4

xAI

Grok-4 is a multimodal language model developed by xAI. It achieves strong performance with an average score of 63.1% across 7 benchmarks. It excels particularly in AIME 2025 (91.7%), HMMT25 (90.0%), GPQA (87.5%). It supports a 264K 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 xAI's latest advancement in AI technology.

OpenAI

GPT-4

OpenAI

2023-06-13

xAI

Grok-4

xAI

2025-07-09

2 years newer

Pricing Comparison

Cost per million tokens (USD)

OpenAI

GPT-4

Input:$30.00
Output:$60.00
xAI

Grok-4

$72.00 cheaper
Input:$3.00
Output:$15.00

Performance Metrics

Context window and performance specifications

OpenAI

GPT-4

Max Context:65.5K
xAI

Grok-4

Larger context
Max Context:264.0K

Average performance across 1 common benchmarks

OpenAI

GPT-4

Average Score:35.7%
xAI

Grok-4

+51.8%
Average Score:87.5%

Performance comparison across key benchmark categories

OpenAI

GPT-4

reasoning
+77.1%
93.0%
code
67.0%
general
+6.9%
76.2%
xAI

Grok-4

reasoning
15.9%
code
+12.0%
79.0%
general
69.3%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores
Knowledge Cutoff
Training data recency comparison

GPT-4

2022-12-31

Grok-4

2024-12-31

More recent knowledge cutoff means awareness of newer technologies and frameworks

Provider Availability & Performance

Available providers and their performance metrics

OpenAI

GPT-4

2 providers

Azure

Throughput: 104 tok/s
Latency: 0.3ms

OpenAI

Throughput: 100 tok/s
Latency: 0.5ms
xAI

Grok-4

2 providers

xAI

Throughput: 100 tok/s
Latency: 0.7ms

ZeroEval

Throughput: 100 tok/s
Latency: 0.7ms
OpenAI

GPT-4

Avg Score:35.7%
Providers:2
xAI

Grok-4

+51.8%
Avg Score:87.5%
Providers:2