Model Comparison

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

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.

OpenAI

o3

OpenAI

o3 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 65.3% across 19 benchmarks. It excels particularly in AIME 2024 (91.6%), ARC-AGI (88.0%), MathVista (86.8%). The model shows particular specialization in vision tasks with an average performance of 76.7%. It supports a 300K 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

2024-08-13

OpenAI

o3

OpenAI

2025-04-16

8 months newer

Pricing Comparison

Cost per million tokens (USD)

xAI

Grok-2

Input:$2.00
Output:$10.00
OpenAI

o3

$2.00 cheaper
Input:$2.00
Output:$8.00

Performance Metrics

Context window and performance specifications

xAI

Grok-2

Max Context:136.0K
OpenAI

o3

Larger context
Max Context:300.0K

Average performance across 3 common benchmarks

xAI

Grok-2

Average Score:63.7%
OpenAI

o3

+20.6%
Average Score:84.3%

Performance comparison across key benchmark categories

xAI

Grok-2

vision
+3.2%
79.8%
general
+5.5%
73.0%
math
+21.2%
72.5%
OpenAI

o3

vision
76.7%
general
67.5%
math
51.3%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores
Knowledge Cutoff
Training data recency comparison

o3

2024-05-31

More recent knowledge cutoff means awareness of newer technologies and frameworks

Provider Availability & Performance

Available providers and their performance metrics

xAI

Grok-2

1 providers

xAI

Throughput: 85 tok/s
Latency: 0.7ms
OpenAI

o3

1 providers

OpenAI

Throughput: 50 tok/s
Latency: 20ms
xAI

Grok-2

Avg Score:63.7%
Providers:1
OpenAI

o3

+20.6%
Avg Score:84.3%
Providers:1