DeepSeek V4.1 Flash
DeepSeek V4.1 Flash is DeepSeek's MIT-licensed open-weight multimodal MoE for reasoning, coding, agents, and native image understanding. The complete checkpoint is approximately 763B parameters, including a 552B backbone; its Causal Encoder-Decoder architecture activates 8B parameters during input prefill and 16B during output decoding. CSA2 and FP4 KV caching reduce long-context cache cost. The model supports a 1M-token context window and is available through official FP8 weights, the DeepSeek API, and Ollama Cloud. It remains a data-center-class deployment despite the low active-parameter count.
Task Fit
Tool use, repo work, terminal workflows, and coding benchmarks.
Code generation, debugging, refactoring, and benchmark signal.
General writing, Q&A, and assistant use.
Document QA benefits from long context and instruction following.
Image or visual understanding, not necessarily image generation.
Not marked for image generation in the current library.
Not marked for video generation in the current library.
Not marked for voice in the current library.
Source Confidence
Variants and Quant Artifacts
Choose the artifact first; hardware fit follows from RAM, VRAM, format, and runtime.
| Quant | Format | Quality | Min RAM | Reco RAM | Runtime | Action |
|---|---|---|---|---|---|---|
| FP8 | safetensors | balanced | 768GB | 1TB | transformers, vllm, sglang, docker-model-runner | Plan with this |
Recommended Hardware
No compatible local hardware found in the current hardware pool.
Benchmarks
Source and Review
Execution evidence
Run DeepSeek V4.1 Flash with a documented recipe
Recipes connect hardware, a model artifact, tools, settings, verification, and a reportable result.
No verified recipe is linked to this record yet.
Compatibility estimates remain available in the planner. A recipe appears here only after its exact stack and verification protocol are documented.
Similar Models
DeepSeek V4 Flash 0731 is the official open-weight release that superseded the preview model and added the DSpark speculative decoding module. Its 304B-parameter, approximately 13B-active MoE checkpoint uses mixed FP4/FP8 weights, supports a 1M-token context window, three reasoning-effort levels, and agentic tool use. The downloadable weights remain available, but DeepSeek retired the hosted V4 Flash API alias in September 2026 in favor of DeepSeek V4.1 Flash.
Moonshot AI's Kimi K2.7 Code. Auto-imported from Hugging Face seed; review memory and benchmark details before using for final ranking.
Moonshot AI's Kimi K2.6. Auto-imported from Hugging Face seed; review memory and benchmark details before using for final ranking.