Side-by-side analysis of Deepseek Deepseek V3 1 Terminus, Openai O3 Mini across performance, benchmarks, capabilities, and infrastructure requirements.
Source: inferbase.ai
Side-by-side analysis of Deepseek Deepseek V3 1 Terminus, Openai O3 Mini across performance, benchmarks, capabilities, and infrastructure requirements.
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 optimizing the model's performance in coding and search agents. It is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes.
OpenAI o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and coding. This model supports the `reasoning_effort` parameter, which can be set to "high", "medium", or "low" to control the thinking time of the model.
| Specification | DeepSeek V3.1 Terminus | O3 MINI |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Parameters | 671B | — |
| Context window | 164K | 200K |
| Max output | — | 100K |
| Input modalities | text | text, file |
| Output modalities | text | text |
| License | mit | proprietary |
| Model type | chat | chat |
| Capability | DeepSeek V3.1 Terminus | O3 MINI |
|---|---|---|
| chain_of_thought | — | Yes |
| code_generation | Yes | Yes |
| extended_thinking | — | Yes |
| function_calling | Yes | Yes |
| json_mode | Yes | — |
| reasoning | Yes | Yes |
| streaming | Yes | — |
| text_generation | Yes | — |
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