$0.25/M input tokens$2/M output tokens$10/K web search
GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost. GPT-5 Mini is the successor to OpenAI's o4-mini model.
OpenAI: GPT-5 Mini – Recent Activity and Usage Stats | OpenRouter
Recent activity on GPT-5 Mini
Total usage per day on OpenRouter
Prompt
2.67B
Reasoning
322M
Completion
152M
Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.