Process massive datasets with GPT-5.4 Mini, featuring an expansive 400K context window for long-document analysis. This model delivers cost-effective pricing at $0.75/1M input and $4.50/1M output tokens, native tool calling support. Access GPT-5.4 Mini via the ZenMux API with up to 128K output tokens.
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GPT-5.4 Mini by ZenMux costs $0.75 per 1M input tokens and $4.50 per 1M output tokens.