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Model Comparison

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

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.

Moonshot AI

Kimi K2-Instruct-0905

Moonshot AI

Kimi K2-Instruct-0905 is a language model developed by Moonshot AI. It achieves strong performance with an average score of 64.1% across 29 benchmarks. It excels particularly in MATH-500 (97.4%), MMLU-Redux (92.7%), IFEval (89.8%). It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.

xAI

Grok-4

xAI

2025-07-09

Moonshot AI

Kimi K2-Instruct-0905

Moonshot AI

2025-09-05

1 month newer

Performance Metrics

Context window and performance specifications

xAI

Grok-4

Larger context
Max Context:264.0K
Moonshot AI

Kimi K2-Instruct-0905

Max Context:-
Parameters:1.0T

Average performance across 3 common benchmarks

xAI

Grok-4

+26.6%
Average Score:86.1%
Moonshot AI

Kimi K2-Instruct-0905

Average Score:59.4%

Performance comparison across key benchmark categories

xAI

Grok-4

math
+26.7%
91.7%
code
+22.1%
79.0%
general
63.7%
reasoning
15.9%
Moonshot AI

Kimi K2-Instruct-0905

math
65.0%
code
56.9%
general
+6.1%
69.9%
reasoning
+44.2%
60.1%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores
Knowledge Cutoff
Training data recency comparison

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

xAI

Grok-4

2 providers

xAI

Throughput: 100 tok/s
Latency: 0.7ms

ZeroEval

Throughput: 100 tok/s
Latency: 0.7ms
Moonshot AI

Kimi K2-Instruct-0905

0 providers
xAI

Grok-4

+26.6%
Avg Score:86.1%
Providers:2
Moonshot AI

Kimi K2-Instruct-0905

Avg Score:59.4%
Providers:0