Comprehensive side-by-side LLM comparison
GPT-5 leads with 30.1% higher average benchmark score. GPT-5 offers 511.6K more tokens in context window than DeepSeek-V2.5. DeepSeek-V2.5 is $10.83 cheaper per million tokens. GPT-5 supports multimodal inputs. Overall, GPT-5 is the stronger choice for coding tasks.
DeepSeek
DeepSeek-V2.5 is a language model developed by DeepSeek. It achieves strong performance with an average score of 71.1% across 15 benchmarks. It excels particularly in GSM8k (95.1%), MT-Bench (90.2%), HumanEval (89.0%). The model is available through 3 API providers. Released in 2024, it represents DeepSeek's latest advancement in AI technology.
OpenAI
GPT-5 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 70.1% across 35 benchmarks. It excels particularly in SWE-Lancer (IC-Diamond subset) (100.0%), COLLIE (99.0%), Tau2 Telecom (96.7%). It supports a 528K 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 2025, it represents OpenAI's latest advancement in AI technology.
1 year newer
DeepSeek-V2.5
DeepSeek
2024-05-08
GPT-5
OpenAI
2025-08-07
Cost per million tokens (USD)
DeepSeek-V2.5
GPT-5
Context window and performance specifications
Average performance across 46 common benchmarks
DeepSeek-V2.5
GPT-5
GPT-5
2024-09-30
Available providers and their performance metrics
DeepSeek-V2.5
DeepInfra
DeepSeek
Hyperbolic
DeepSeek-V2.5
GPT-5
DeepSeek-V2.5
GPT-5
GPT-5
OpenAI
ZeroEval