Last refreshed 2026-10-17. Next refresh: weekly.
Why use DeepSeek V4.1 Flash 1017 on OpenRouter?
OpenRouter offers DeepSeek V4.1 Flash 1017 with pay-as-you-go pricing at $0.30/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare DeepSeek V4.1 Flash 1017 across 4 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: deepseek/deepseek-v4.1-flash-1017deepseek/deepseek-v4.1-flash-1017Request example
deepseek/deepseek-v4.1-flash-1017.Gotchas
- Use provider model ID "deepseek/deepseek-v4.1-flash-1017", not the LLMReference slug "deepseek-v4.1-flash-1017".
Compare DeepSeek V4.1 Flash 1017 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| DeepSeek Platform | $0.30 | $1.20 |
| Vercel AI Gateway | $0.30 | $1.20 |
| OpenRouter | $0.30 | $1.20 |
| DeepInfra | $0.20 | $0.60 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.30 |
| Output tokens | $1.20 |
| Image input | $1.00 |
Capabilities
About DeepSeek V4.1 Flash 1017
DeepSeek V4.1 Flash 1017 is the October 17, 2026 update to DeepSeek V4.1 Flash, released under the MIT license with weights on Hugging Face and ModelScope. DeepSeek describes it as a minor update trained with reinforcement learning from self-feedback for end-to-end project development, with shorter task runtime and output length. It supports 1M-token context, up to 384K output tokens, vision input, thinking and non-thinking modes, tool calls and JSON output. The DeepSeek API serves it as deepseek-flash, and the legacy names deepseek-v4-flash and deepseek-v4-flash-vision-exp also route to it.