Comparison
DeepSeek V4 Pro vs GPT-5.4 mini
DeepSeek V4 Pro costs 42% less per input token than GPT-5.4 mini. DeepSeek V4 Pro is 81% cheaper on output tokens. DeepSeek V4 Pro has the larger context window than GPT-5.4 mini.
| Field | DeepSeek V4 Pro | GPT-5.4 mini |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Context window | 1M | 400K |
| Max output | 384K | 128K |
| Input / 1M | $0.43542% cheaper | $0.75 |
| Output / 1M | $0.8781% cheaper | $4.50 |
| Cached input / 1M | $0.003695% cheaper | $0.075 |
| Batch discount | — | 50% |
| Release date | — | 2026-03-17 |
Worked cost examples
Estimated monthly cost on three common usage shapes
| Workload | DeepSeek V4 Pro | GPT-5.4 mini |
|---|---|---|
Chatbot 800 input / 200 output tokens per request, 100,000 requests/month | $52.20cheaper | $150.00 |
RAG pipeline 6,000 input / 700 output tokens per request, 30,000 requests/month | $96.57cheaper | $229.50 |
Batch summarization 20,000 input / 1,500 output tokens per request, 5,000 requests/month | $50.03cheaper | $108.75 |
DeepSeek V4 Pro vs GPT-5.4 mini FAQ
- Is DeepSeek V4 Pro cheaper than GPT-5.4 mini?
- DeepSeek V4 Pro costs $0.435 per 1M input tokens versus $0.75 for GPT-5.4 mini — DeepSeek V4 Pro is 42% cheaper per input token.
- Which is cheaper for output tokens, DeepSeek V4 Pro or GPT-5.4 mini?
- DeepSeek V4 Pro charges $0.87 per 1M output tokens; GPT-5.4 mini charges $4.50 per 1M output tokens.
- Which has the larger context window, DeepSeek V4 Pro or GPT-5.4 mini?
- DeepSeek V4 Pro does, with a 1,000,000-token context window.
- Do DeepSeek V4 Pro and GPT-5.4 mini offer cache pricing?
- DeepSeek V4 Pro discounts cached input to $0.0036 per 1M tokens. GPT-5.4 mini discounts cached input to $0.075 per 1M tokens.
Looking for another matchup? See all comparisons.