GPT‑5.4 mini and nano
Fast and efficient models optimized for coding and subagents
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GPT-5.4 brings powerful reasoning, coding, and agentic workflows into one frontier model, now live in ChatGPT, API, and Codex. With GPT-5.4 mini (2x faster) and nano (lowest cost), build responsive AI systems for coding, subagents, and multimodal tasks. Featuring computer use, web search, and massive context, it’s designed for real-world, high-scale execution.
PH · launched Mar 18, 2026 · 267 upvotes (top 49%) · 0 views
Niche: large language models · 191 launches, 4 in the last 7 days ▼ -33% · Explore this niche →
Category and tags
- Horizontal
- Model & infra
- Developer
- AI-native
- Commercial product
- API
- Developer Tools
- Artificial Intelligence
Visit website ↗ Source listing ↗
More like this: all 191 launches in large language models →
Could you build this?
No This is a frontier foundation model from OpenAI requiring hundreds of millions of dollars in compute, specialized post-training, and cutting-edge deep learning research.
What it would actually take: Building a frontier LLM like GPT-5.4 requires massive GPU clusters (thousands of H100s/B200s), petabytes of curated multimodal training datasets, distributed training frameworks (Megatron-LM, DeepSpeed), and world-class AI research teams specializing in pre-training, reinforcement learning from human feedback (RLHF), and agentic reasoning.
Competitors
Other products that read as similar to this one : 361 launches clear the similarity bar, closest 8 shown.
Attention rank: #161 of 362 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 132 days after the earliest competitor.
- GPT-5.6 · ph · 2026-07-10 · 337 upvotes · similarity 0.54
- GPT-5.5 by OpenAI · ph · 2026-04-26 · 476 upvotes · similarity 0.54
- nano-gpt-alternatives · github · 2026-09-21 · 12 upvotes · similarity 0.54
- nano-gpt-api-examples · github · 2026-09-21 · 8 upvotes · similarity 0.52
- MicroGPT in 243 Lines · hn · 2026-02-13 · 10 upvotes · similarity 0.51
- NanoEuler · hn · 2026-06-28 · 55 upvotes · similarity 0.50
- NanoEuler · hn · 2026-06-19 · 6 upvotes · similarity 0.50
- GLM Mini · ph · 2026-09-14 · 1 upvotes · similarity 0.48
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