DeepSeek V4 Pro vs Gemini 3.1 Pro
DeepSeek V4 Pro and Gemini 3.1 Pro are both current production-tier models. DeepSeek V4 Pro is meaningfully cheaper at $0.43 / $0.87 per 1M. Gemini 3.1 Pro leads on general knowledge, long-context retrieval, instruction following.
Specs side by side
| Metric | DeepSeek DeepSeek V4 Pro | Google Gemini 3.1 Pro |
|---|---|---|
| Input price (per 1M) | $0.435 | $2 |
| Output price (per 1M) | $0.87 | $12 |
| Context window | 1M tokens | 2M tokens |
| Speed tier | balanced | balanced |
| 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 $2 / $12 per 1M)
- You need open weights for self-hosting or fine-tuning
Choose Gemini 3.1 Pro if…
- You need 2M context (2× more than DeepSeek V4 Pro)
- EU data residency is required
- HIPAA eligibility is required
- You need image input / vision
- General knowledge is central to your workload
- Long-context retrieval is central to your workload
Benchmark delta
DeepSeek V4 Pro leads on
DeepSeek V4 Pro has no meaningful benchmark lead in this pair.
Gemini 3.1 Pro leads on
- General knowledge
- Long-context retrieval
- Instruction following
- Multilingual
- Tool use
FAQ — DeepSeek V4 Pro vs Gemini 3.1 Pro
DeepSeek V4 Pro vs Gemini 3.1 Pro — which is better?
DeepSeek V4 Pro and Gemini 3.1 Pro are both current production-tier models. DeepSeek V4 Pro is meaningfully cheaper at $0.43 / $0.87 per 1M. Gemini 3.1 Pro leads on general knowledge, long-context retrieval, instruction following. 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 Gemini 3.1 Pro?
DeepSeek V4 Pro costs $0.43 / $0.87 per 1M vs Gemini 3.1 Pro at $2 / $12 per 1M. DeepSeek V4 Pro is cheaper on output tokens by roughly 1279%. Both support prompt caching, which reduces effective cost by 80-90% on repeat system prompts.
Does DeepSeek V4 Pro or Gemini 3.1 Pro have the bigger context window?
Gemini 3.1 Pro has a 2M-token context window — 2× the 1M context of DeepSeek V4 Pro. Enough for entire codebases, books, or multi-document RAG.
Is there a free tier for DeepSeek V4 Pro or Gemini 3.1 Pro?
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. Gemini 3.1 Pro: no — Paid-only since 2026-04-01 (previously had free tier via AI Studio).
Which is better for coding — DeepSeek V4 Pro or Gemini 3.1 Pro?
Gemini 3.1 Pro leads on coding benchmarks (DeepSeek V4 Pro: 91/100, Gemini 3.1 Pro: 94/100). For production coding agents also weigh tool-use performance — DeepSeek V4 Pro scores 86, Gemini 3.1 Pro scores 91.