Model Comparison

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

OpenAI

GPT-5 mini

OpenAI

GPT-5 mini is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 60.0% across 5 benchmarks. It excels particularly in AIME 2025 (91.1%), HMMT 2025 (87.8%), GPQA (82.3%). 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.

xAI

Grok-4 Heavy

xAI

Grok-4 Heavy is a multimodal language model developed by xAI. It achieves strong performance with an average score of 79.5% across 6 benchmarks. It excels particularly in AIME 2025 (100.0%), HMMT25 (96.7%), GPQA (88.4%). The model shows particular specialization in general tasks with an average performance of 79.5%. 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.

xAI

Grok-4 Heavy

xAI

2025-07-09

OpenAI

GPT-5 mini

OpenAI

2025-08-07

29 days newer

Performance Metrics

Context window and performance specifications

OpenAI

GPT-5 mini

Larger context
Max Context:528.0K
xAI

Grok-4 Heavy

Max Context:-

Average performance across 3 common benchmarks

OpenAI

GPT-5 mini

Average Score:63.4%
xAI

Grok-4 Heavy

+16.3%
Average Score:79.7%

Performance comparison across key benchmark categories

OpenAI

GPT-5 mini

general
69.5%
xAI

Grok-4 Heavy

general
+10.1%
79.5%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores
Knowledge Cutoff
Training data recency comparison

GPT-5 mini

2024-05-30

Grok-4 Heavy

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-5 mini

2 providers

ZeroEval

Throughput: 200 tok/s
Latency: 1ms

OpenAI

Throughput: 200 tok/s
Latency: 1ms
xAI

Grok-4 Heavy

0 providers
OpenAI

GPT-5 mini

Avg Score:63.4%
Providers:2
xAI

Grok-4 Heavy

+16.3%
Avg Score:79.7%
Providers:0