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GPT-4.1 vs Kimi K2 0905
Comprehensive side-by-side LLM comparison
GPT-4.1 leads with 36.3% higher average benchmark score. GPT-4.1 offers 556.1K more tokens in context window than Kimi K2 0905. Kimi K2 0905 is $6.90 cheaper per million tokens. GPT-4.1 supports multimodal inputs. Overall, GPT-4.1 is the stronger choice for coding tasks.
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OpenAI
GPT-4.1 is a multimodal language model developed by OpenAI. The model shows competitive results across 30 benchmarks. It excels particularly in MMLU (90.2%), CharXiv-D (87.9%), IFEval (87.4%). With a 1.1M token context window, it can handle extensive documents and complex multi-turn conversations. 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.
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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.
4 months newer
GPT-4.1
OpenAI
2025-04-14
Kimi K2 0905
Moonshot AI
2025-09-05
Pricing Comparison
Cost per million tokens (USD)
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GPT-4.1
Input:$2.00
Output:$8.00
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Kimi K2 0905
Input:$0.60
Output:$2.50($6.90 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 33 common benchmarks
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GPT-4.1
Average Score:51.6%(+36.3%)
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Kimi K2 0905
Average Score:15.3%
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Knowledge Cutoff
Training data recency comparison
GPT-4.1
2024-06-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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GPT-4.1
1 providers
OpenAI
Throughput: 100 tok/s
Latency: 10ms
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Kimi K2 0905
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GPT-4.1
Avg Score:51.6%(+36.3%)
Providers:1
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Kimi K2 0905
Avg Score:15.3%
Providers:2