Comprehensive side-by-side LLM comparison
GPT-5 mini leads with 51.5% higher average benchmark score. GPT-5 mini offers 507.5K more tokens in context window than GPT-3.5 Turbo. Both models have similar pricing. GPT-5 mini supports multimodal inputs. Overall, GPT-5 mini is the stronger choice for coding tasks.
OpenAI
GPT-3.5 Turbo was developed as an optimized version of GPT-3.5, designed to provide a balance of capability and efficiency for conversational and completion tasks. Built to serve as a cost-effective option for applications requiring reliable language understanding and generation, it became widely adopted for chatbots, content generation, and general-purpose AI assistance.
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.
2 years newer

GPT-3.5 Turbo
OpenAI
2023-03-21

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

GPT-3.5 Turbo

GPT-5 mini
Context window and performance specifications
Average performance across 1 common benchmarks

GPT-3.5 Turbo

GPT-5 mini
GPT-3.5 Turbo
2021-09-30
GPT-5 mini
2024-05-30
Available providers and their performance metrics

GPT-3.5 Turbo
Azure
OpenAI


GPT-3.5 Turbo

GPT-5 mini

GPT-3.5 Turbo

GPT-5 mini
GPT-5 mini
OpenAI
ZeroEval