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GPT-4.5 vs Kimi K2 Instruct
Comprehensive side-by-side LLM comparison
Kimi K2 Instruct leads with 12.6% higher average benchmark score. Kimi K2 Instruct offers 130.0K more tokens in context window than GPT-4.5. Kimi K2 Instruct is $222.13 cheaper per million tokens. GPT-4.5 supports multimodal inputs. Overall, Kimi K2 Instruct is the stronger choice for coding tasks.
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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%). 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.
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Moonshot AI
Kimi K2 Instruct is a language model developed by Moonshot AI. It achieves strong performance with an average score of 66.7% across 38 benchmarks. It excels particularly in MATH-500 (97.4%), GSM8k (97.3%), CBNSL (95.6%). It supports a 262K token context window for handling large documents. The model is available through 1 API provider. It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.
4 months newer
GPT-4.5
OpenAI
2025-02-27
Kimi K2 Instruct
Moonshot AI
2025-07-11
Pricing Comparison
Cost per million tokens (USD)
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GPT-4.5
Input:$75.00
Output:$150.00
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Kimi K2 Instruct
Input:$0.57
Output:$2.30($222.13 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 53 common benchmarks
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GPT-4.5
Average Score:32.2%
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Kimi K2 Instruct
Average Score:44.7%(+12.6%)
Provider Availability & Performance
Available providers and their performance metrics
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GPT-4.5
1 providers
OpenAI
Throughput: 50 tok/s
Latency: 20ms
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Kimi K2 Instruct
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GPT-4.5
Avg Score:32.2%
Providers:1
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Kimi K2 Instruct
Avg Score:44.7%(+12.6%)
Providers:1