Mycelis
Mycelis
OpenAI
GPT-5.4 mini is a commercial model from OpenAI. Focus areas: Coding, Fast, Reasoning. Context window: 400,000 tokens.
Context window
400k
Reasoning level
8 / 10
MMLU
86.5
HumanEval
84.0
Pricing
$0.75 per 1M input tokens
Usable the moment you add a key — your own (BYOK) or one managed by Mycelis. No GPU deployment or infrastructure needed.