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Model Comparison

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

OpenAI

GPT-4.5

OpenAI

GPT-4.5 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 63.1% across 27 benchmarks. It excels particularly in GSM8k (97.0%), MMLU (90.8%), CharXiv-D (90.0%). The model shows particular specialization in code tasks with an average performance of 88.1%. It supports a 132K 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.

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

GPT-4.5

OpenAI

2025-02-27

Moonshot AI

Kimi K2 0905

Moonshot AI

2025-09-05

6 months newer

Pricing Comparison

Cost per million tokens (USD)

OpenAI

GPT-4.5

Input:$75.00
Output:$150.00
Moonshot AI

Kimi K2 0905

$221.90 cheaper
Input:$0.60
Output:$2.50

Performance Metrics

Context window and performance specifications

OpenAI

GPT-4.5

Max Context:132.1K
Moonshot AI

Kimi K2 0905

Larger context
Max Context:524.3K
Parameters:1.0T

Average performance across 4 common benchmarks

OpenAI

GPT-4.5

Average Score:71.2%
Moonshot AI

Kimi K2 0905

+11.9%
Average Score:83.1%

Performance comparison across key benchmark categories

OpenAI

GPT-4.5

code
88.1%
math
84.7%
general
59.1%
Moonshot AI

Kimi K2 0905

code
+6.4%
94.5%
math
+4.4%
89.1%
general
+21.0%
80.1%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores

Provider Availability & Performance

Available providers and their performance metrics

OpenAI

GPT-4.5

1 providers

OpenAI

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

Kimi K2 0905

1 providers

Novita

OpenAI

GPT-4.5

Avg Score:71.2%
Providers:1
Moonshot AI

Kimi K2 0905

+11.9%
Avg Score:83.1%
Providers:1