Comparison
GPT-4o vs GPT-5.4 mini
Per input token, GPT-5.4 mini runs 70% cheaper than GPT-4o. GPT-5.4 mini is 55% cheaper on output tokens. GPT-5.4 mini has the larger context window than GPT-4o.
| Field | GPT-4o Legacy | GPT-5.4 mini |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Context window | 128K | 400K |
| Max output | — | 128K |
| Input / 1M | $2.50 | $0.7570% cheaper |
| Output / 1M | $10.00 | $4.5055% cheaper |
| Cached input / 1M | $1.25 | $0.07594% cheaper |
| Batch discount | — | 50% |
| Release date | — | 2026-03-17 |
Worked cost examples
Estimated monthly cost on three common usage shapes
| Workload | GPT-4o | GPT-5.4 mini |
|---|---|---|
Chatbot 800 input / 200 output tokens per request, 100,000 requests/month | $400.00 | $150.00cheaper |
RAG pipeline 6,000 input / 700 output tokens per request, 30,000 requests/month | $660.00 | $229.50cheaper |
Batch summarization 20,000 input / 1,500 output tokens per request, 5,000 requests/month | $325.00 | $108.75cheaper |
GPT-4o vs GPT-5.4 mini FAQ
- Is GPT-4o cheaper than GPT-5.4 mini?
- GPT-4o costs $2.50 per 1M input tokens versus $0.75 for GPT-5.4 mini — GPT-5.4 mini is 233% cheaper per input token.
- Which is cheaper for output tokens, GPT-4o or GPT-5.4 mini?
- GPT-4o charges $10.00 per 1M output tokens; GPT-5.4 mini charges $4.50 per 1M output tokens.
- Which has the larger context window, GPT-4o or GPT-5.4 mini?
- GPT-5.4 mini does, with a 400,000-token context window.
- Do GPT-4o and GPT-5.4 mini offer cache pricing?
- GPT-4o discounts cached input to $1.25 per 1M tokens. GPT-5.4 mini discounts cached input to $0.075 per 1M tokens.
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