GPT-5.4 API Pricing
GPT-5.4 delivers powerful reasoning, coding, and professional knowledge work. Supports multimodal inputs (text and image) with adjustable reasoning depth. Token-based pricing: $1.25/M input tokens, $9.00/M output tokens. Two endpoints: standard async (/gpt-5-4) and live streaming (/gpt-5-4/stream) via SSE.
About GPT-5.4
GPT-5.4 is OpenAI's latest flagship model delivering powerful reasoning, coding, and professional knowledge work. Supports multimodal inputs (text and image) and adjustable reasoning depth. Token-based pricing: $1.25 per million input tokens and $9.00 per million output tokens — well below official OpenAI pricing.
Interactive Savings Calculator
Estimate monthly API spend and compare absolute developer savings.
$12500.00
$1.25/M input tokens, $9.00/M output tokens$17500.00
~$1.75/M input tokens, ~$14.00/M output tokensDetailed Pricing Breakdown
| Provider | Estimated Rate | Notes |
|---|---|---|
| muapiapp | $1.25/M input tokens, $9.00/M output tokens | Token-based billing. Minimum $0.00023 per call. ~71% of official input pricing, ~64% of official output pricing. Supports Prompt Caching (0.1x for hits, 1.25x for creation). |
| OpenAI (official) | ~$1.75/M input tokens, ~$14.00/M output tokens | Official pricing via api.openai.com. |
| Fal.ai | Not available | GPT-5.4 is not available on Fal.ai. |
Developer Integration Snippets
Model FAQ
Compare similar models
Ready to scale your production?
Get instant access to developer keys. Integrate high-speed dynamic models in minutes with our robust SDKs.