GPT-5.4 mini vs Opus 4.8

GPT-5.4 mini vs Opus 4.8 compared on intelligence, speed, and cost. Try both models on Zo, the always-on AI computer that does real work for you.

GPT-5.4 mini
OpenAI
vs
Opus 4.8
Anthropic

Intelligence

Opus 4.8 is smarter
vs

Speed

GPT-5.4 mini is faster
vs
Standard

Cost

GPT-5.4 mini is cheaper
$$
vs
$$$

How to read this

Intelligence comes from SWE-bench Verified, the coding benchmark used by the model picker. Speed means the model is fast enough for the picker threshold. Cost shows the relative tier across Zo models: green is cheaper, amber is pricier.

Model details

400k tokens
Context
1M tokens
Aug 2025
Knowledge
Jan 2026
Mar 2026
Released
May 2026
$0.75/1M
Input
$5.00/1M
$4.50/1M
Output
$25.00/1M

Both GPT-5.4 mini and Opus 4.8 are available on Zo Computer. Try them both to see which one works best for your use case.

Learn more about GPT-5.4 miniLearn more about Opus 4.8View all models on Zo
GPT-5.4 mini vs Opus 4.8 | Zo Computer