AI Agent StoreDeepSeek · Hosted serving variant
DeepSeek V4.1 Flash Fast
AI Gateway offers this version of V4.1 Flash for faster serving. We do not yet have comparable speed measurements, and results for the standard service are not assigned to this version.
First reviewed 2026-10-03 · Checked 2026-10-15. The launch date has not been confirmed.
We still need comparable independent tests. You can compare the confirmed features and limits below, but we cannot yet give this version an Agent Fit or Practical Value rating. Test it on your own tasks before switching; results for another version or thinking setting may not apply.
What you can use today
Token prices measure the small pieces of text the model reads or produces. Capacity is the amount the service accepts in a request; check the limits below for any fallback to another model. A dash means the rate is unverified.
Exact AI Gateway route ID: deepseek/deepseek-v4.1-flash-fast. The current Gateway route accepts text and images, supports tools and lists 1,048,576 context with 32,768 maximum output tokens. Its none/low/medium/high options are service controls; no matched effort study is available.
Thinking settings listed by AI Gateway: none, low, medium, high. These controls apply to this AI Gateway service. We have not confirmed how they match the model maker’s settings, which is the default, or how they perform in comparable independent tests. Verify the exact Gateway catalog entry ↗
The exact route has returned to the Gateway catalog after its October9 absence. Its current output allowance and prices differ from the earlier offer; recheck your request limits before switching it back on.
Limits belong to this hosted route and may differ from another deployment of V4.1 Flash.
Gateway’s October13 quote is $0.60 input, $2.40 output and $0.014 cache read per million tokens. These are service-specific rates, separate from DeepSeek’s native price schedule. Your bill can also include tools, retries and charged thinking tokens. Check the offer used by your application.
Check availability and plans ↗
Test it before switching
Give each model the same examples, tools and definition of success. Record correct outcomes, response time, retries and total cost. A cheaper token price does not guarantee a cheaper completed task.
Compare caching and long-context costs ↗