Model Comparison

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

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.

Moonshot AI

Kimi-k1.5

Moonshot AI

Kimi-k1.5 is a multimodal language model developed by Moonshot AI. This model demonstrates exceptional performance with an average score of 81.7% across 9 benchmarks. It excels particularly in MATH-500 (96.2%), CLUEWSC (91.4%), C-Eval (88.3%). The model shows particular specialization in math tasks with an average performance of 85.5%. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.

Moonshot AI

Kimi-k1.5

Moonshot AI

2025-01-20

xAI

Grok-4 Heavy

xAI

2025-07-09

5 months newer

Performance comparison across key benchmark categories

xAI

Grok-4 Heavy

general
79.5%
code
+0.1%
79.4%
Moonshot AI

Kimi-k1.5

general
+5.9%
85.4%
code
79.3%
Knowledge Cutoff
Training data recency comparison

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

xAI

Grok-4 Heavy

0 providers
Moonshot AI

Kimi-k1.5

0 providers
xAI

Grok-4 Heavy

Avg Score:0.0%
Providers:0
Moonshot AI

Kimi-k1.5

Avg Score:0.0%
Providers:0