OpenAI: GPT-5 Mini

OpenAIID: openai/gpt-5-mini

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.

Pricing per 1M Tokens

Input (Prompt)$0.25
Output (Completion)$2.00
Cache Read$0.02
Cache WriteFree
ImageN/A

Specifications

Context Length400K
Max Output Tokens128K
Input ModalitiesText + Image + File
Output ModalitiesText
TokenizerGPT
Instruct TypeN/A
Top Provider Context400K
Top Provider Max Output128K
ModeratedYes

Compare this model

See how OpenAI: GPT-5 Mini stacks up against other models.

vs OpenAI: GPT-5.4 Nanovs OpenAI: GPT-5.4 Minivs OpenAI: GPT-5.4 Provs OpenAI: GPT-5.4vs OpenAI: GPT-5.3 Chat

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Last updated: March 23, 2026

First tracked: March 23, 2026