# DeepSeek-V4.1-Flash spotted on models.dev

DeepSeek-V4.1-Flash from DeepSeek was first recorded on 18 Oct 2026. Its release date is not established. Catalogues list a 1,048,576 tokens context window. 15 evidence links.

- Kind: Sighting
- Developer: DeepSeek
- Confidence: Confirmed
- First seen: 2026-10-18T01:38:16.545Z
- Model: [DeepSeek-V4.1-Flash](https://alexgetman.com/models/deepseek/deepseek-flash/)
- Canonical: https://alexgetman.com/signals/2026/10/18/deepseek-v4-1-flash-1017-non-reasoning/
- Input · USD / 1M tokens: $0.15 (Off-peak: Off-peak rates are half of the peak rates. Peak hours are 01:00 - 04:00 and 06:00 - 10:00 UTC, Monday through Friday, excluding Chinese public holidays. All other hours are off-peak, including weekends and Chinese public holidays in full.); $0.30 (Peak: Off-peak rates are half of the peak rates. Peak hours are 01:00 - 04:00 and 06:00 - 10:00 UTC, Monday through Friday, excluding Chinese public holidays. All other hours are off-peak, including weekends and Chinese public holidays in full.)
- Output · USD / 1M tokens: $0.60 (Off-peak: Off-peak rates are half of the peak rates. Peak hours are 01:00 - 04:00 and 06:00 - 10:00 UTC, Monday through Friday, excluding Chinese public holidays. All other hours are off-peak, including weekends and Chinese public holidays in full.); $1.20 (Peak: Off-peak rates are half of the peak rates. Peak hours are 01:00 - 04:00 and 06:00 - 10:00 UTC, Monday through Friday, excluding Chinese public holidays. All other hours are off-peak, including weekends and Chinese public holidays in full.)
- Cached input · USD / 1M tokens: $0.003 (Off-peak: Off-peak rates are half of the peak rates. Peak hours are 01:00 - 04:00 and 06:00 - 10:00 UTC, Monday through Friday, excluding Chinese public holidays. All other hours are off-peak, including weekends and Chinese public holidays in full.); $0.006 (Peak: Off-peak rates are half of the peak rates. Peak hours are 01:00 - 04:00 and 06:00 - 10:00 UTC, Monday through Friday, excluding Chinese public holidays. All other hours are off-peak, including weekends and Chinese public holidays in full.)

## Evidence links

- [models.dev · catalogue](https://models.dev/#deepseek-flash)
- [models.dev · catalogue](https://models.dev/#deepseek-v4.1-flash-1017)
- [models.dev · catalogue](https://models.dev/#DeepSeek-V4.1-Flash-1017)
- [OpenRouter](https://openrouter.ai/deepseek/deepseek-v4.1-flash-1017)
- [Alibaba Model Studio API](https://www.alibabacloud.com/help/en/model-studio/models)
- [models.dev · catalogue](https://models.dev/#deepseek-v4-1-flash-1017)
- [Hacker News · front page](https://artificialanalysis.ai/models/deepseek-v4-1-flash-1017)
- [Hugging Face · inference providers](https://huggingface.co/deepseek-ai/DeepSeek-V4.1-Flash-1017)
- [DesignArena · website](https://www.designarena.ai/leaderboard/website)
- [Artificial Analysis · benchmarks](https://artificialanalysis.ai/models)
- [models.dev · catalogue](https://models.dev/#umans-deepseek-v4.1-flash-1017)
- [models.dev · catalogue](https://models.dev/#morph-dsv41flash-1017)
- [OpenRouter](https://openrouter.ai/deepseek/deepseek-v4.1-flash-1017:batch)
- [models.dev · catalogue](https://models.dev/#deepseek-flash-1017)
- [models.dev · catalogue](https://models.dev/#DeepSeek-V4.1-flash-1017)