ZenMuxGPT-5.4 model ID, context window & pricing
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Quick facts
Model ID openai/gpt-5.4
Source ZenMux
Context Window 1050000
Pricing $3.75 input / $18.75 output per 1M tokens
Capabilities tool calling, reasoning, temperature control
Model overview
GPT-5.4 is an AI model from ZenMux with 1050000 token context window and text, image input support.
Published pricing is $3.75 input and $18.75 output per 1M tokens.
- Workloads that use text, image inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID openai/gpt-5.4
Provider ZenMux
Family -
Status -
Knowledge Cutoff 2025-08-31
Release Date 2026-03-20
Input Modalities text, image
Output Modalities text
Context Window 1050000
Input Limit -
Output Limit 128000
Tool Calling Yes
Reasoning Yes
Structured Output -
Temperature Control Yes
Open Weights No
Input Cost / 1M tokens $3.75
Output Cost / 1M tokens $18.75
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens -
Cache Write Cost / 1M tokens -