GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K...
Specifications
| Provider | OpenAI |
|---|---|
| Context window | 1,050,000 tokens (1.1M) |
| Input price | $30 / 1M tokens |
| Output price | $180 / 1M tokens |
| Input modalities | text, image, file |
| Output modalities | text |
| Model ID | openai/gpt-5.4-pro |
Pricing is per 1M tokens, indicative pricing via OpenRouter (updated 2026-08-22); a provider's own list price may differ.
Frequently asked questions
How much does GPT-5.4 Pro cost?
Indicative pricing (via OpenRouter, updated 2026-08-22) is $30 per 1M input tokens and $180 per 1M output tokens. A provider's own list price may differ. On Vincony, GPT-5.4 Pro is available on credit-based pricing alongside 800+ other models.
What is GPT-5.4 Pro's context window?
GPT-5.4 Pro supports a context window of up to 1,050,000 tokens (1.1M), which is how much text it can consider at once.
Who makes GPT-5.4 Pro?
GPT-5.4 Pro is built by OpenAI. You can access it — and compare it against other providers' models — through Vincony's multi-model platform.
How do I use GPT-5.4 Pro?
You can use GPT-5.4 Pro directly through OpenAI, or via Vincony, which aggregates 800+ models (including GPT-5.4 Pro) into one interface with side-by-side comparison and credit-based pricing.