Model Comparison

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

xAI

Grok-3

xAI

Grok-3 is a multimodal language model developed by xAI. This model demonstrates exceptional performance with an average score of 85.7% across 5 benchmarks. It excels particularly in AIME 2024 (93.3%), AIME 2025 (93.3%), GPQA (84.6%). The model shows particular specialization in general tasks with an average performance of 90.4%. 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 2025, 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-3

xAI

2025-02-17

OpenAI

o3

OpenAI

2025-04-16

1 month newer

Pricing Comparison

Cost per million tokens (USD)

xAI

Grok-3

Input:$3.00
Output:$15.00
OpenAI

o3

$8.00 cheaper
Input:$2.00
Output:$8.00

Performance Metrics

Context window and performance specifications

xAI

Grok-3

Max Context:136.0K
OpenAI

o3

Larger context
Max Context:300.0K

Average performance across 4 common benchmarks

xAI

Grok-3

+1.2%
Average Score:87.3%
OpenAI

o3

Average Score:86.1%

Performance comparison across key benchmark categories

xAI

Grok-3

general
+22.9%
90.4%
vision
+1.3%
78.0%
OpenAI

o3

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

o3

2024-05-31

Grok-3

2024-11-17

More recent knowledge cutoff means awareness of newer technologies and frameworks

Provider Availability & Performance

Available providers and their performance metrics

xAI

Grok-3

1 providers

xAI

Throughput: 100 tok/s
Latency: 0.7ms
OpenAI

o3

1 providers

OpenAI

Throughput: 50 tok/s
Latency: 20ms
xAI

Grok-3

+1.2%
Avg Score:87.3%
Providers:1
OpenAI

o3

Avg Score:86.1%
Providers:1