GPT-5.4 mini

by OpenAI

OpenAI's quick, low-cost option. Reliable and direct — a sensible default for everyday questions and routine work. Try GPT-5.4 mini on Zo.

Knowledge cutoffAug 2025
Context window400k tokens
Release dateMar 2026
Input
$0.75 / 1M tokens
Output
$4.50 / 1M tokens
Cached
$0.08 / 1M tokens

How we rate models

Quality. Three brains is top, one is basic. We anchor the rating on SWE-bench Verifiedthe industry-standard coding benchmark — how often a model solves real GitHub issues end-to-end.
Fast. Shown when the model can produce at least roughly 80 tokens per second (about 60 words a second). Not every model qualifies.
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Cost. Single dollar is the cheapest tier (green), four dollars is the priciest (amber) — reserved for premium models that cost well above the rest. Tiers sit on a fixed scale of what a typical request costs, so they're comparable across providers and don't shift as the lineup changes.

On Zo, you can choose between all the leading AI models for chatting, research, coding, and generating media. We believe in giving you the power to explore different models so that you can get the best results for any task.

GPT-5.4 mini | Zo Computer