Comprehensive side-by-side LLM comparison
DeepSeek-V3.1 leads with 10.5% higher average benchmark score. GPT-4.1 offers 752.7K more tokens in context window than DeepSeek-V3.1. DeepSeek-V3.1 is $8.73 cheaper per million tokens. GPT-4.1 supports multimodal inputs. Overall, DeepSeek-V3.1 is the stronger choice for coding tasks.
DeepSeek
DeepSeek-V3.1 was developed as an incremental advancement over DeepSeek-V3, designed to refine the mixture-of-experts architecture with improved training techniques. Built to enhance quality and efficiency while maintaining the open-source philosophy, it represents continued iteration on DeepSeek's flagship model line.
OpenAI
GPT-4.1 represents an iterative improvement in the GPT-4 series, developed to refine the foundational capabilities established by GPT-4. Built to incorporate learnings and optimizations from the deployment of previous versions, it continues the evolution of OpenAI's flagship model line with enhanced reliability and performance.
3 months newer

DeepSeek-V3.1
DeepSeek
2025-01-10

GPT-4.1
OpenAI
2025-04-14
Cost per million tokens (USD)

DeepSeek-V3.1

GPT-4.1
Context window and performance specifications
Average performance across 7 common benchmarks

DeepSeek-V3.1

GPT-4.1
Performance comparison across key benchmark categories

DeepSeek-V3.1

GPT-4.1
GPT-4.1
2024-06-01
Available providers and their performance metrics

DeepSeek-V3.1
DeepInfra
Novita

GPT-4.1

DeepSeek-V3.1

GPT-4.1

DeepSeek-V3.1

GPT-4.1
OpenAI