Comprehensive side-by-side LLM comparison
GPT-5 mini leads with 46.4% higher average benchmark score. GPT-5 mini supports multimodal inputs. GPT-5 mini is available on 2 providers. Overall, GPT-5 mini is the stronger choice for coding 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.
xAI
Grok 1.5 was developed by xAI as an advanced language model, designed to provide helpful and accurate information with a focus on reasoning and factual knowledge. Built to serve as a conversational AI with strong analytical capabilities, it represents xAI's early generation of foundation models.
1 year newer

Grok-1.5
xAI
2024-03-28

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

GPT-5 mini

Grok-1.5
GPT-5 mini
2024-05-30
Available providers and their performance metrics

GPT-5 mini
OpenAI
ZeroEval


GPT-5 mini

Grok-1.5

GPT-5 mini

Grok-1.5
Grok-1.5