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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

o3

OpenAI

o3 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 67.5% across 22 benchmarks. It excels particularly in COLLIE (98.4%), AIME 2024 (91.6%), ARC-AGI (88.0%). 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.

OpenAI

o3

OpenAI

2025-04-16

Moonshot AI

Kimi K2 0905

Moonshot AI

2025-09-05

4 months newer

Pricing Comparison

Cost per million tokens (USD)

Moonshot AI

Kimi K2 0905

$6.90 cheaper
Input:$0.60
Output:$2.50
OpenAI

o3

Input:$2.00
Output:$8.00

Performance Metrics

Context window and performance specifications

Moonshot AI

Kimi K2 0905

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

o3

Max Context:300.0K

Average performance across 2 common benchmarks

Moonshot AI

Kimi K2 0905

Average Score:73.9%
OpenAI

o3

+13.5%
Average Score:87.5%

Performance comparison across key benchmark categories

Moonshot AI

Kimi K2 0905

code
+13.2%
94.5%
math
+26.1%
89.1%
general
+9.0%
80.1%
OpenAI

o3

code
81.3%
math
63.0%
general
71.1%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores
Knowledge Cutoff
Training data recency comparison

o3

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 0905

1 providers

Novita

OpenAI

o3

1 providers

OpenAI

Throughput: 50 tok/s
Latency: 20ms
Moonshot AI

Kimi K2 0905

Avg Score:73.9%
Providers:1
OpenAI

o3

+13.5%
Avg Score:87.5%
Providers:1