Comprehensive side-by-side LLM comparison
GPT-5 leads with 12.4% higher average benchmark score. GPT-5 supports multimodal inputs. GPT-5 is available on 2 providers. Overall, GPT-5 is the stronger choice for coding tasks.
DeepSeek
DeepSeek-R1-Zero was introduced as an experimental variant trained with minimal human supervision, designed to develop reasoning patterns through self-guided reinforcement learning. Built to explore how models can discover analytical strategies independently, it represents research into autonomous reasoning capability development.
OpenAI
GPT-5 represents the next generation of OpenAI's foundational models, developed to advance the frontier of AI capabilities in reasoning, knowledge, and general intelligence. Built to push beyond the limitations of GPT-4, it incorporates architectural and training improvements designed to enhance performance across diverse tasks and domains.
6 months newer

DeepSeek R1 Zero
DeepSeek
2025-01-20

GPT-5
OpenAI
2025-08-07
Context window and performance specifications
Average performance across 1 common benchmarks

DeepSeek R1 Zero

GPT-5
GPT-5
2024-09-30
Available providers and their performance metrics

DeepSeek R1 Zero

GPT-5
OpenAI

DeepSeek R1 Zero

GPT-5

DeepSeek R1 Zero

GPT-5
ZeroEval