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GPT-4o vs Kimi K2 0905
Comprehensive side-by-side LLM comparison
GPT-4o leads with 12.8% higher average benchmark score. Kimi K2 0905 offers 392.2K more tokens in context window than GPT-4o. Kimi K2 0905 is $9.40 cheaper per million tokens. GPT-4o supports multimodal inputs. Overall, GPT-4o is the stronger choice for coding tasks.
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OpenAI
GPT-4o is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 77.4% across 8 benchmarks. It excels particularly in MGSM (90.5%), HumanEval (90.2%), MMLU (88.7%). It supports a 132K 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 2024, it represents OpenAI's latest advancement in AI technology.
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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 2 API providers. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.
1 year newer
GPT-4o
OpenAI
2024-05-13
Kimi K2 0905
Moonshot AI
2025-09-05
Pricing Comparison
Cost per million tokens (USD)
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GPT-4o
Input:$2.50
Output:$10.00
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Kimi K2 0905
Input:$0.60
Output:$2.50($9.40 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 9 common benchmarks
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GPT-4o
Average Score:68.8%(+12.8%)
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Kimi K2 0905
Average Score:56.0%
Provider Availability & Performance
Available providers and their performance metrics
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GPT-4o
2 providers
Azure
Throughput: 92 tok/s
Latency: 0.54ms
OpenAI
Throughput: 100 tok/s
Latency: 0.5ms
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GPT-4o
Avg Score:68.8%(+12.8%)
Providers:2
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Kimi K2 0905
Avg Score:56.0%
Providers:2