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Model Comparison

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

Moonshot AI

Kimi K2 0905

Moonshot AI

Kimi K2 0905 is a language model developed by Moonshot AI. This model demonstrates exceptional performance with an average score of 84.0% across 6 benchmarks. It excels particularly in HumanEval (94.5%), MMLU (90.2%), MATH (89.1%). It supports a 524K 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

o1-preview

OpenAI

o1-preview is a language model developed by OpenAI. It achieves strong performance with an average score of 64.8% across 8 benchmarks. It excels particularly in MGSM (90.8%), MMLU (90.8%), MATH (85.5%). The model shows particular specialization in math tasks with an average performance of 88.1%. It supports a 161K token context window for handling large documents. The model is available through 2 API providers. Released in 2024, it represents OpenAI's latest advancement in AI technology.

OpenAI

o1-preview

OpenAI

2024-09-12

Moonshot AI

Kimi K2 0905

Moonshot AI

2025-09-05

11 months newer

Pricing Comparison

Cost per million tokens (USD)

Moonshot AI

Kimi K2 0905

$71.90 cheaper
Input:$0.60
Output:$2.50
OpenAI

o1-preview

Input:$15.00
Output:$60.00

Performance Metrics

Context window and performance specifications

Moonshot AI

Kimi K2 0905

Larger context
Max Context:524.3K
Parameters:1.0T
OpenAI

o1-preview

Max Context:160.8K

Average performance across 4 common benchmarks

Moonshot AI

Kimi K2 0905

+8.9%
Average Score:81.8%
OpenAI

o1-preview

Average Score:72.9%

Performance comparison across key benchmark categories

Moonshot AI

Kimi K2 0905

math
+1.0%
89.1%
general
+20.2%
80.1%
OpenAI

o1-preview

math
88.1%
general
59.9%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores

Provider Availability & Performance

Available providers and their performance metrics

Moonshot AI

Kimi K2 0905

1 providers

Novita

OpenAI

o1-preview

2 providers

Azure

Throughput: 16 tok/s
Latency: 0.54ms

OpenAI

Throughput: 66 tok/s
Latency: 16.2ms
Moonshot AI

Kimi K2 0905

+8.9%
Avg Score:81.8%
Providers:1
OpenAI

o1-preview

Avg Score:72.9%
Providers:2