GPT-5.4: pricing, specs, and how to use it (2026)
GPT-5.4 is an AI model from OpenAI, available alongside ChatGPT, Claude, Gemini, and 300+ other models inside Admix on one subscription from $8.99/mo.
Quick specs
| Provider | OpenAI |
| Model ID | openai/gpt-5.4 |
| Input price | $2.50 / 1M tokens |
| Output price | $15.00 / 1M tokens |
| Tier | pro |
| Accepts images | Yes |
| Category | Advanced |
How to use GPT-5.4 in Admix
Open Admix, pick GPT-5.4 from the model list, and start chatting. You can also run the same prompt through GPT-5.4 and other frontier models like Claude, GPT-5, and Gemini side by side, then pick the best answer or spot disagreement. One subscription, no separate API key.
Compare GPT-5.4 with other AI models
These are popular comparisons to make alongside GPT-5.4:
FAQ
What is GPT-5.4?
GPT-5.4 is an AI model from OpenAI, available inside Admix alongside 300+ other frontier and open-source AI models on one subscription.
How much does GPT-5.4 cost?
GPT-5.4 costs $2.50 per million input tokens and $15.00 per million output tokens. In Admix you use it inside one subscription starting at $8.99 per month, no separate API key required.
Can I compare GPT-5.4 with ChatGPT, Claude, or Gemini?
Yes. Admix lets you run the same prompt through GPT-5.4 and any of the other 300+ models in the catalog, then see the answers side by side.
Try GPT-5.4 in Admix
One subscription, 300+ AI models including GPT-5.4. Compare any of them side by side from $8.99/mo.
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