DeepSeek-V4.1-Flash (2026-10-17)
- In Input modalities: TextImage Out Output modalities: Text
- Reasoning· low, high, max
- Reasoning can be off
- Tool use
- Structured output
- Open weights
Prices
9 offerings · prices as listeddeepseek-v4.1-flash-1017| Conditions/ 1M tokens | Input | Output |
|---|---|---|
| Peak hours Standard | $0.283 | $1.131 |
| Off-peak hours | $0.141 | $0.565 |
Prices from Alibaba Cloud Model Studio pricing (opens in a new tab) (checked Nov 2, 2026)
deepseek-flash| Conditions/ 1M tokens | Input | Cache read | Output |
|---|---|---|---|
| Peak hours no longer listed since Oct 18, 2026 | $0.30 | $0.006 | $1.20 |
| Off-peak hours no longer listed since Oct 18, 2026 | $0.15 | $0.003 | $0.60 |
Prices from DeepSeek API models & pricing (opens in a new tab) (checked Oct 18, 2026)
deepseek-flash| Conditions/ 1M tokens | Input | Cache read | Output |
|---|---|---|---|
| Peak hours no longer listed since Oct 18, 2026 | ¥2.00 | ¥0.040 | ¥8.00 |
| Off-peak hours no longer listed since Oct 18, 2026 | ¥1.00 | ¥0.020 | ¥4.00 |
Prices from DeepSeek API：模型 & 价格 (opens in a new tab) (checked Oct 18, 2026)
deepseek-v4.1-flash-1017| Conditions/ 1M tokens | Input | Output |
|---|---|---|
| Standard | ¥2.00 | ¥8.00 |
| Off-peak hours | ¥1.00 | ¥4.00 |
Prices from 阿里云百炼：模型价格 (opens in a new tab) (checked Nov 2, 2026)
deepseek-v4.1-flash-1017| Conditions/ 1M tokens | Input | Output |
|---|---|---|
| Peak hours Standard | $0.30 | $1.20 |
| Off-peak hours | $0.15 | $0.60 |
Prices from Alibaba Cloud Model Studio pricing (opens in a new tab) (checked Nov 2, 2026)
deepseek-v4.1-flash-1017| Conditions/ 1M tokens | Input | Output |
|---|---|---|
| Peak hours no longer listed since Oct 23, 2026 | $0.283 | $1.131 |
| Off-peak hours no longer listed since Oct 23, 2026 | $0.141 | $0.565 |
Prices from Alibaba Cloud Model Studio pricing (opens in a new tab) (checked Nov 2, 2026)
Standard: the price a request with no conditions pays (the headline price elsewhere on the site).
Details
- Built-in tools
- Web search
- Knowledge cutoff
- May 2025
- Licence
- mit
- Family
- deepseek-flash
- Aliases
- deepseek-v4-flash, deepseek-v4-flash-vision-exp
- Model ID
Not stated on DeepSeek’s pages: max input, max thinking budget.
Run locally
Weights: deepseek-ai/DeepSeek-V4.1-Flash-1017- Parameters 763.2B
- Active 228.1B (estimated) · 384 experts, 6 per token
- Native precision FP8
- Layers 40
- KV cache per token 80 KB
- Config positions 1024K (config.json max_position_embeddings)
- API context 977K (maker’s API)
- Needs
- ≈ 397.1 GB (weights 377.6 + KV cache 0.6 + overhead 18.9)
- Usable
- 21.6 GB (90% of its memory)
- Try
- it’s too large for this hardware; see the smallest that runs it below
| Precision | Weights | Needs at 8K | On your hardware | Longest context |
|---|---|---|---|---|
| FP8 (native)maker’s file | 475.3 GB | ≈ 499.6 | ✕Doesn’t fit | — |
| Q6_K | 583.7 GB | ≈ 613.5 | ✕Doesn’t fit | — |
| Q5_K_M | 505.5 GB | ≈ 531.5 | ✕Doesn’t fit | — |
| Q5_0 | 488.7 GB | ≈ 513.7 | ✕Doesn’t fit | — |
| Q4_K_M | 431.8 GB | ≈ 454.0 | ✕Doesn’t fit | — |
| Q4_0 | 399.8 GB | ≈ 420.4 | ✕Doesn’t fit | — |
| IQ4_XS | 377.6 GB | ≈ 397.1 | ✕Doesn’t fit | — |
| Q3_K_Mquality drops | 347.4 GB | ≈ 365.4 | ✕Doesn’t fit | — |
| IQ3_XXSquality drops | 271.9 GB | ≈ 286.1 | ✕Doesn’t fit | — |
| Q2_Kquality drops | 266.5 GB | ≈ 280.5 | ✕Doesn’t fit | — |
| IQ2_XXSquality drops | 183.0 GB | ≈ 192.8 | ✕Doesn’t fit | — |
Click a row to choose a precision. “Maker’s file” sizes are the maker’s own files; others are parameters × bits per weight.
Compared with other hardware
Each at the highest precision it runs. Click one for details.
Smallest that runs it (Q4_K_M, 8K): no single listed machine; about 7 × 80 GB GPUs.
Run commands
The maker publishes no files at this precision. Choose its native precision or one of its own builds, or quantise it yourself with llama.cpp.
Memory to fine-tune
Batch 1, 2,048-token sequences, gradient checkpointing; LoRA and QLoRA train rank-16 adapters on the attention projections.
Estimates; facts from the maker’s Hugging Face repositories, as of 2026-11-06. How it’s estimated
Cited scores
From third-party leaderboards, not measured by us- Epoch Capabilities Index 159.3
#19 of 118 listed models · CI 157–161.8
- Epoch AI · Chess Puzzles 46%
#24 of 85 listed models · max effort · ±5.01
- Epoch AI · FrontierMath Tier 4 v2 46.3%
#21 of 65 listed models · max effort · ±7.88
- Epoch AI · FrontierMath Tiers 1–3 71.2%
#27 of 84 listed models · max effort · ±2.69
- Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Oct 28 – Nov 5, 2026
- LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Oct 28, 2026
- changes we made
Changes
All changes →- Now priced on Cloudflare Workers AI Input $0.30 · Cache read $0.006 · Output $1.20
- New language model
Sources
- DeepSeek API models & pricing (opens in a new tab) api-docs.deepseek.com · checked Nov 2, 2026
- DeepSeek | 深度求索in Chinese (opens in a new tab) deepseek.com · checked Oct 30, 2026
- models.dev: deepseek-flash (community data, MIT) (opens in a new tab) github.com · checked Oct 17, 2026
- deepseek-ai/DeepSeek-V4.1-Flash-1017 config.json (opens in a new tab) huggingface.co · checked Nov 1, 2026
- deepseek-ai/DeepSeek-V4.1-Flash-1017 model card (opens in a new tab) huggingface.co · checked Oct 31, 2026
- DeepSeek API models & pricing (opens in a new tab) api-docs.deepseek.com · checked Oct 18, 2026
- DeepSeek API：模型 & 价格in Chinese (opens in a new tab) api-docs.deepseek.com · checked Oct 18, 2026
- deepseek-ai/DeepSeek-V4.1-Flash-1017 model card (opens in a new tab) huggingface.co · checked Nov 5, 2026
- deepseek-ai/DeepSeek-V4.1-Flash-1017 files (opens in a new tab) huggingface.co · checked Nov 4, 2026
- DeepSeek API change log (opens in a new tab) api-docs.deepseek.com · checked Nov 2, 2026
- 阿里云百炼：模型价格in Chinese (opens in a new tab) help.aliyun.com · checked Nov 2, 2026
- Alibaba Cloud Model Studio pricing (opens in a new tab) alibabacloud.com · checked Nov 2, 2026
- Cloudflare Workers AI pricing (opens in a new tab) developers.cloudflare.com · checked Nov 4, 2026
- 模型上下架与更新-大模型服务平台百炼-阿里云_大模型服务平台百炼(Model Studio)-大模型服务平台百炼(Model Studio)-阿里云帮助中心in Chinese (opens in a new tab) help.aliyun.com · checked Oct 30, 2026
- Explore Qwen3, Wan2.6 & Latest Models on Model Studio - Alibaba Cloud Model Studio - Alibaba Cloud_Alibaba Cloud Model Studio(Model Studio) - Alibaba Cloud Model Studio - Alibaba Cloud Documentation Center (opens in a new tab) alibabacloud.com · checked Nov 2, 2026
- DeepSeek (opens in a new tab) alibabacloud.com · checked Nov 1, 2026
- Text generation models - Qwen, DeepSeek, GLM | Model Studio - Alibaba Cloud Model Studio - Alibaba Cloud Documentation Center (opens in a new tab) docs.modelstudio.console.alibabacloud.com · checked Nov 1, 2026
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