DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further …
Model details →DeepSeek: DeepSeek V3.1 Terminus vs Microsoft: Phi 4
DeepSeek: DeepSeek V3.1 Terminus wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
[Microsoft Research](/microsoft) Phi-4 is designed to perform well in complex reasoning tasks and can operate efficiently in situations with limited memory or where quick responses are needed. At 14 billion parameters, it was trained on a…
Model details →Side-by-side comparison
| Capability | DeepSeek: DeepSeek V3.1 Terminus | Microsoft: Phi 4 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 164K | 16K | 🏆 DeepSeek: DeepSeek V3.1 Terminus |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.21 | $0.07 | 🏆 Microsoft: Phi 4 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.79 | $0.14 | 🏆 Microsoft: Phi 4 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | — | 🏆 DeepSeek: DeepSeek V3.1 Terminus |
| Vision input Accepts image inputs alongside text. | — | — | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | — | 🏆 DeepSeek: DeepSeek V3.1 Terminus |
Frequently asked questions
Is DeepSeek: DeepSeek V3.1 Terminus better than Microsoft: Phi 4?
DeepSeek: DeepSeek V3.1 Terminus wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between DeepSeek: DeepSeek V3.1 Terminus and Microsoft: Phi 4?
Input: $0.21 vs $0.07 per 1M tokens. Output: $0.79 vs $0.14 per 1M tokens.
What context windows do DeepSeek: DeepSeek V3.1 Terminus and Microsoft: Phi 4 support?
DeepSeek: DeepSeek V3.1 Terminus supports up to 164K tokens. Microsoft: Phi 4 supports up to 16K tokens.
Do both DeepSeek: DeepSeek V3.1 Terminus and Microsoft: Phi 4 support tool calling?
DeepSeek: DeepSeek V3.1 Terminus: yes. Microsoft: Phi 4: not advertised.