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DeepSeek V4.1 Flash 1017OPEN
DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the deepseek-flash API model name.
Prices update automatically — checked daily against provider list prices.
- $0.26 per 1M tokens, assuming 3 input for 1 output the convention used by Artificial Analysis
- cheaper than 53% of the 203 open-weight models tracked here
- 4 of 16 DeepSeek models tracked here, from cheapest
Benchmarks & performance
Independent benchmark scores for DeepSeek V4.1 Flash 1017, measured by Artificial Analysis. Higher is better. Measurement mode: Max.
For the same budget, DeepSeek V4.1 Flash 1017 delivers 10 times more capability. Open weights also mean you can self-host it and pay nothing per token.
Models at this level cost $2 per 1M tokens (median of 23) — this one costs $0.26.
Cheaper and better on this index: Claude Haiku 5.5 · Claude Haiku 5.5 (batch) · GLM 5.3 Flash and 2 more
About this model
DeepSeek V4.1 Flash 1017 is an open-weight AI model by DeepSeek. You can download and self-host it for free; the prices below are hosted-API list prices, tracked daily, for when you prefer convenience over self-hosting.
Frequently asked questions
What is DeepSeek V4.1 Flash 1017?
DeepSeek V4.1 Flash 1017 is an AI language model from DeepSeek. It is open-weight: you can download it and run it on your own hardware, for free. It scores 39.5 on the Artificial Analysis intelligence index.
Is DeepSeek V4.1 Flash 1017 free?
The weights are free and open — you can self-host DeepSeek V4.1 Flash 1017 and pay nothing per token. If you prefer a hosted API, list prices are $0.15 per million input tokens and $0.6 per million output tokens.
What is DeepSeek V4.1 Flash 1017 good at?
Independent benchmarks from Artificial Analysis give it Humanity's Last Exam 39.2%, Long Context Reasoning 84%, SciCode 51.9%.
How fast is DeepSeek V4.1 Flash 1017?
It generates about 222.4 tokens per second, with a median 0.69s delay before the first token. Measured independently by Artificial Analysis.
Can I self-host DeepSeek V4.1 Flash 1017?
Yes. DeepSeek V4.1 Flash 1017 has open weights, so you can download it and run it on your own GPU or server with tools like Ollama, vLLM or llama.cpp — with no per-token cost.