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DeepSeek V3.1 vs o3-mini
Side-by-side comparison of specs, pricing, and capabilities
| Spec | 🧠 DeepSeek V3.1 | 🧠 o3-mini |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Category | 🧠 Reasoning | 🧠 Reasoning |
| Parameters | 671B | Undisclosed |
| Context Window | 128K tokens | 200K tokens |
| License | 🔓 open | 🔒 proprietary |
| Input Price | $0.27 | $1.10 |
| Output Price | $1.10 | $4.40 |
| API Available | ✅ | ✅ |
| Released | Jun 1, 2025 | Jan 31, 2025 |
| Trending Score | 🔥 88 | 🔥 80 |
DeepSeek V3.1 Strengths
- ✓Incredible cost efficiency
- ✓Open weights
- ✓Top-tier math/coding
- ✓MoE architecture
o3-mini Strengths
- ✓Good reasoning at low cost
- ✓Configurable thinking effort
- ✓Fast for a reasoning model
About DeepSeek V3.1
671B MoE model with only 37B active parameters. Open-weight, excels at math, coding, and Chinese language tasks.
View full details →About o3-mini
Cost-effective reasoning model. Provides strong reasoning capabilities at a fraction of o3's cost.
View full details →❓ Frequently Asked Questions
Which is better, DeepSeek V3.1 or o3-mini?
It depends on your use case. DeepSeek V3.1 (DeepSeek) has a trending score of 88, while o3-mini (OpenAI) scores 80. DeepSeek V3.1 costs $0.27 per 1M input tokens. Check the comparison table above for detailed specs.
Is DeepSeek V3.1 cheaper than o3-mini?
DeepSeek V3.1 costs $0.27 input / $1.10 output per 1M tokens, while o3-mini costs $1.10 input / $4.40 output.
Can I use both DeepSeek V3.1 and o3-mini?
Yes! Many developers use multiple models for different tasks. You might use one for complex reasoning and another for high-volume, cost-sensitive workloads.