DeepSeek V4 Pro vs GPT-5.4 Mini
DeepSeek V4 Pro and GPT-5.4 Mini are both current production-tier models. DeepSeek V4 Pro is meaningfully cheaper at $0.43 / $0.87 per 1M. DeepSeek V4 Pro has a 1M context window — about 3× the 400k of GPT-5.4 Mini. DeepSeek V4 Pro leads on coding, reasoning.
Specs side by side
| Metric | DeepSeek DeepSeek V4 Pro | OpenAI GPT-5.4 Mini |
|---|---|---|
| Input price (per 1M) | $0.435 | $0.75 |
| Output price (per 1M) | $0.87 | $4.5 |
| Context window | 1M tokens | 400k tokens |
| Speed tier | balanced | fast |
| Open weights | Yes | No |
| EU region | No | Yes |
| Free tier | No | No |
| Prompt caching | Yes | Yes |
| Vision input | No | Yes |
| Extended thinking | Yes | Yes |
When to choose each
Choose DeepSeek V4 Pro if…
- Cost is a priority ($0.43 / $0.87 per 1M vs $0.75 / $4.5 per 1M)
- You need 1M context (3× more than GPT-5.4 Mini)
- You need open weights for self-hosting or fine-tuning
- Coding is central to your workload
- Reasoning is central to your workload
Choose GPT-5.4 Mini if…
- EU data residency is required
- HIPAA eligibility is required
- You need image input / vision
Benchmark delta
DeepSeek V4 Pro leads on
- Coding
- Reasoning
GPT-5.4 Mini leads on
GPT-5.4 Mini has no meaningful benchmark lead in this pair.
FAQ — DeepSeek V4 Pro vs GPT-5.4 Mini
DeepSeek V4 Pro vs GPT-5.4 Mini — which is better?
DeepSeek V4 Pro and GPT-5.4 Mini are both current production-tier models. DeepSeek V4 Pro is meaningfully cheaper at $0.43 / $0.87 per 1M. DeepSeek V4 Pro has a 1M context window — about 3× the 400k of GPT-5.4 Mini. DeepSeek V4 Pro leads on coding, reasoning. The right pick depends on your use case — see "When to choose each" above for a data-driven decision.
How does DeepSeek V4 Pro pricing compare to GPT-5.4 Mini?
DeepSeek V4 Pro costs $0.43 / $0.87 per 1M vs GPT-5.4 Mini at $0.75 / $4.5 per 1M. DeepSeek V4 Pro is cheaper on output tokens by roughly 417%. Both support prompt caching, which reduces effective cost by 80-90% on repeat system prompts.
Does DeepSeek V4 Pro or GPT-5.4 Mini have the bigger context window?
DeepSeek V4 Pro has a 1M-token context window — 3× the 400k context of GPT-5.4 Mini. Enough for entire codebases, books, or multi-document RAG.
Is there a free tier for DeepSeek V4 Pro or GPT-5.4 Mini?
DeepSeek V4 Pro: no — No free tier on the official API — but at $0.435/$0.87 per 1M it is near-free vs frontier peers. GPT-5.4 Mini: no — Near-free at $0.75/$4.50 per 1M; starter credits only.
Which is better for coding — DeepSeek V4 Pro or GPT-5.4 Mini?
DeepSeek V4 Pro leads on coding benchmarks (DeepSeek V4 Pro: 91/100, GPT-5.4 Mini: 84/100). For production coding agents also weigh tool-use performance — DeepSeek V4 Pro scores 86, GPT-5.4 Mini scores 86.