# 🚀 New Models Now Live in Pickaxe: GPT-5.4 Mini & Nano **URL:** \ **Category:** Releases & Features\ **Tags:** openai\ **Created:** [April 21, 2026, 7:43pm UTC](https://community.pickaxe.co/t/new-models-now-live-in-pickaxe-gpt-5-4-mini-nano/8459 "2026-04-21T19:43:38Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![abhi](https://yyz2.discourse-cdn.com/flex004/user_avatar/community.pickaxe.co/abhi/32/5009_2.png) [@abhi](https://community.pickaxe.co/u/abhi)\ **Post date:** [April 21, 2026, 7:43pm UTC](https://community.pickaxe.co/t/new-models-now-live-in-pickaxe-gpt-5-4-mini-nano/8459/1 "2026-04-21T19:43:38Z")
We’ve added the latest models from OpenAI to the Pickaxe builder. You can now start building with **GPT-5.4 Mini** and **GPT-5.4 Nano** right away. ![CleanShot 2026-04-21 at 15.11.14@2x](https://canada1.discourse-cdn.com/flex004/uploads/pickaxeproject/original/2X/b/b9dd9bcca28c4f98479bdb745cac6eb856305479.jpeg) ### What this means for you These models are designed for speed, efficiency, and cost control without sacrificing too much capability. - **GPT-5.4 Mini** A strong balance of performance and cost. Great for most production use cases where you want solid outputs without heavy spend. - **GPT-5.4 Nano** Lightweight and fast. Ideal for high-volume tools, simple workflows, or when keeping costs extremely low matters. ### Where to find them Head to your “ **Edit Agent** ” Builder **→ Prompt → Model dropdown** , and you’ll see both models available to select. If you’re already building tools, this is a good moment to experiment. Try swapping models and see how responses change in speed, tone, and cost. If you’re new to how models fit into your Pickaxe setup, this guide might help you get oriented: Click here - [Agent Builder | Pickaxe Learn](https://pickaxe.co/learn/agent-builder) Would love to hear what you build with these. If something feels off or surprisingly good, share it here.