Comprehensive side-by-side LLM comparison
GPT-5 mini offers 511.6K more tokens in context window than DeepSeek-V2.5. DeepSeek-V2.5 is $1.83 cheaper per million tokens. GPT-5 mini supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
DeepSeek
DeepSeek-V2.5 was developed as an enhanced iteration of the DeepSeek-V2 architecture, designed to incorporate improvements in model quality and efficiency. Built to advance the DeepSeek foundation model series, it provides refined capabilities for general-purpose language understanding and generation tasks.
OpenAI
GPT-5 Mini was created as a more accessible version of GPT-5, designed to provide strong capabilities with improved efficiency and lower operational costs. Built to extend GPT-5's advancements to a broader range of applications, it balances advanced performance with practical deployment considerations.
1 year newer

DeepSeek-V2.5
DeepSeek
2024-05-08

GPT-5 mini
OpenAI
2025-08-07
Cost per million tokens (USD)

DeepSeek-V2.5

GPT-5 mini
Context window and performance specifications
GPT-5 mini
2024-05-30
Available providers and their performance metrics

DeepSeek-V2.5
DeepInfra
DeepSeek
Hyperbolic

DeepSeek-V2.5

GPT-5 mini

DeepSeek-V2.5

GPT-5 mini

GPT-5 mini
OpenAI
ZeroEval