Model Comparison

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

Moonshot AI

Kimi K2 Instruct

Moonshot AI

Kimi K2 Instruct is a language model developed by Moonshot AI. It achieves strong performance with an average score of 66.7% across 38 benchmarks. It excels particularly in MATH-500 (97.4%), GSM8k (97.3%), CBNSL (95.6%). It supports a 144K token context window for handling large documents. The model is available through 1 API provider. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.

OpenAI

o4-mini

OpenAI

o4-mini is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 66.5% across 14 benchmarks. It excels particularly in AIME 2024 (93.4%), AIME 2025 (92.7%), MathVista (84.3%). 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.

Moonshot AI

Kimi K2 Instruct

Moonshot AI

2025-01-01

OpenAI

o4-mini

OpenAI

2025-04-16

3 months newer

Performance Metrics

Context window and performance specifications

Moonshot AI

Kimi K2 Instruct

Larger context
Max Context:144.0K
Parameters:1.0T
OpenAI

o4-mini

Max Context:-

Average performance across 5 common benchmarks

Moonshot AI

Kimi K2 Instruct

Average Score:51.8%
OpenAI

o4-mini

+18.4%
Average Score:70.2%

Performance comparison across key benchmark categories

Moonshot AI

Kimi K2 Instruct

math
+2.3%
86.6%
general
62.0%
agents
58.8%
OpenAI

o4-mini

math
84.3%
general
+2.4%
64.4%
agents
+1.7%
60.5%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores
Knowledge Cutoff
Training data recency comparison

o4-mini

2024-05-31

More recent knowledge cutoff means awareness of newer technologies and frameworks

Provider Availability & Performance

Available providers and their performance metrics

Moonshot AI

Kimi K2 Instruct

1 providers

Novita

Throughput: 45 tok/s
Latency: 0.95ms
OpenAI

o4-mini

0 providers
Moonshot AI

Kimi K2 Instruct

Avg Score:51.8%
Providers:1
OpenAI

o4-mini

+18.4%
Avg Score:70.2%
Providers:0