GPT 5.4 vs GPT 5.4 Mini
GPT 5.4 Mini is 3.3× cheaper on input tokens than GPT 5.4. GPT 5.4 has a longer context window (1M vs 272K). Both models are accessible via the haimaker.ai OpenAI-compatible API at https://api.haimaker.ai/v1.
GPT 5.4
openai/gpt-5.4
Chat
Function CallingVisionReasoning
GPT 5.4 Mini
openai/gpt-5.4-mini
Chat
Function CallingVisionReasoningWeb Search
Side-by-side specifications
| Spec | GPT 5.4 | GPT 5.4 Mini |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Full ID | openai/gpt-5.4 | openai/gpt-5.4-mini |
| Mode | chat | chat |
| Parameters | N/A | N/A |
| Context window | 1M | 272K |
| Max output | 128K | 128K |
| Input price (per 1M) | $2.50 | $0.75 |
| Output price (per 1M) | $15.00 | $4.50 |
| License | N/A | N/A |
| Architecture | N/A | N/A |
Feature support
| Feature | GPT 5.4 | GPT 5.4 Mini |
|---|---|---|
| Function Calling | ✓ Supported | ✓ Supported |
| Reasoning | ✓ Supported | ✓ Supported |
| Vision | ✓ Supported | ✓ Supported |
| Web Search | — | ✓ Supported |
Frequently asked questions
Which is cheaper, GPT 5.4 or GPT 5.4 Mini?
GPT 5.4 Mini is cheaper at $0.75 per 1M input tokens vs $2.50 for GPT 5.4.
Which has the larger context window, GPT 5.4 or GPT 5.4 Mini?
GPT 5.4 accepts up to 1M input tokens vs 272K for GPT 5.4 Mini.
Can I use both GPT 5.4 and GPT 5.4 Mini via the same API?
Yes. haimaker.ai exposes both openai/gpt-5.4 and openai/gpt-5.4-mini on the same OpenAI-compatible endpoint at https://api.haimaker.ai/v1, so you can switch between them by changing the model parameter in your request.
Try GPT 5.4 or GPT 5.4 Mini via the haimaker API
One OpenAI-compatible endpoint. Switch between them by changing the model parameter.