A compact variant of GPT-5, designed for efficient handling of lighter-weight reasoning and conversational tasks. GPT-5 Mini retains the instruction-following and safety features of its larger counterpart, but with reduced latency and cost. It is the direct successor to OpenAI’s o4-mini model, making it ideal for scalable, cost-sensitive deployments.
Retired on Apr 9, 2026: requests to this model ID now return an error. These models are live and work with the same API key.
A compact variant of GPT-5, designed for efficient handling of lighter-weight reasoning and conversational tasks. GPT-5 Mini retains the instruction-following and safety features of its larger counterpart, but with reduced latency and cost.
No. GPT-5 Mini (Free) was retired on NagaAI on Apr 9, 2026, and requests to it now return an error. Live models you can use instead with the same API key: GPT-6.1 Terra, GPT-6.1 Sol and LFM3-1.7B.
It takes text, images and files as input and returns text.