GPT-5 Mini

OpenAI's lightweight general-purpose model with a 400k token context window, positioned between GPT-5 Nano and the full GPT-5 in the GPT-5 family.

Strengths

Balances reasoning capability with reduced computational overhead compared to the full GPT-5 model.

Best for

Tasks requiring lower-latency reasoning where you trade some capability for speed, or applications with constraints on compute resources.

Limitations

Smaller and less capable than GPT-5; GPT-5 Nano offers faster inference if latency is the primary concern.