# DeepSeek V4.1 Flash 1017: API availability

DeepSeek V4.1 Flash 1017: API availability. First seen 17 Oct 2026. Its weights are publicly available. The context window is 1,048,576 tokens. Pricing is $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.) per million input tokens and $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.) per million output tokens. 9 evidence links.

- Kind: API availability
- Developer: DeepSeek
- Confidence: Confirmed
- First seen: 2026-10-17T08:07:56.195Z
- API availability: 2026-10-17T00:00:00.000Z
- Model: [DeepSeek V4.1 Flash 1017](https://alexgetman.com/models/deepseek/deepseek-v4-1-flash-1017/)
- Canonical: https://alexgetman.com/signals/2026/10/17/deepseek-v4-1-flash-1017-2/
- 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

- [Hugging Face · deepseek-ai](https://huggingface.co/deepseek-ai/DeepSeek-V4.1-Flash-1017)
- [DeepSeek · updates](https://api-docs.deepseek.com/updates/#deepseek-v41-flash-1017-update)
- [OpenRouter](https://openrouter.ai/deepseek/deepseek-v4.1-flash-1017)
- [Vercel AI Gateway](https://vercel.com/ai-gateway)
- [DeepSeek · API docs sitemap](https://api-docs.deepseek.com/news/news261017/)
- [models.dev · catalogue](https://models.dev/#deepseek-v4.1-flash-1017)
- [Alibaba Model Studio API](https://www.alibabacloud.com/help/en/model-studio/models)
- [OpenCode · discovery](https://opencode.ai/data/deepseek/deepseek-v4-1-flash-1017)
- [Artificial Analysis · benchmarks](https://artificialanalysis.ai/models)