Mycelis
OpenAI
GPT-5.1 Codex is a commercial model from OpenAI. Focus areas: Coding, Enterprise. Context window: 400,000 tokens.
Context window
400k
Reasoning level
8 / 10
MMLU
84.0
HumanEval
92.0
Pricing
$1.25 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.