DeepSeek V4 Flash
Low-latency MoE variant of DeepSeek V4 - fewer experts activated per token for faster inference
Context window
128K
Input / 1M tokens
Free
Output / 1M tokens
Free
Provider
DeepSeek
Open-source variant of DeepSeek V4. API pricing significantly cheaper than US frontier models.
DeepSeek V4 Flash is the low-latency variant of DeepSeek V4. By activating fewer experts per forward pass, it trades some of the full model's capability for meaningfully lower inference latency. The sparser activation also produces cleaner representation geometry, making it particularly effective for techniques like steering vectors and activation-based control. Popular with researchers exploring LLM interpretability.
Strengths
- ✓Lower latency than full DeepSeek V4
- ✓Sparser MoE activation - cleaner residual stream representations
- ✓Effective for LLM steering and interpretability research
- ✓Open-source weights
- ✓Strong performance-to-cost ratio
Best for developers who...
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