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GPT-5.4 Mini API pricing

Compare the published GPT-5.4 Mini API list rate with corouter's outlet rate, review context and modalities, and estimate a monthly token bill.

OpenAI
GPT-5.4 Mini
OpenAI
80%
Model ID
gpt-5.4-mini
Context window
400K
Vendor
OpenAI
Modalities
ChatReasoning
List pricecorouter
Input / Mtok$0.750$0.150
Cached input / Mtok$0.075$0.015
Output / Mtok$4.50$0.900

Prices in USD per million tokens, verified against official pricing pages on 2026-07-29.

Where this model fits

  • Long-context passes where the per-token rate dominates the bill
  • Background jobs and batch cleanup that run unattended
  • Draft-then-refine pipelines that hand off to a larger model

Estimates only. Actual billing depends on your real token counts, cache hit rate, and the prices in effect at request time.

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