Mycelis
Mycelis
OpenAI
GPT-5.4 is a commercial model from OpenAI. Focus areas: Enterprise, Reasoning, Coding, Vision. Context window: 1,000,000 tokens.
Context window
1M
Reasoning level
9 / 10
MMLU
92.5
HumanEval
92.0
Pricing
$2.50 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.