DeepSeek: DeepSeek V4.1 Flash 1017
Deepseek · deepseek/deepseek-v4.1-flash-1017
Runs in the cloud, on our API — not on your own machine.
open weights tools reasoning optional
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. V4.1 Flash is a sparse mixture-of-experts model...
What it costs
Final AI-token prices, per million tokens. Bring your own provider key in the app to pay provider rates directly. The catalog carries 2 further price bands with no stated threshold, so they are not shown here as rates.
What it can do
Effort: max, high, low and none — high by default. More effort means more thinking tokens, billed at the output rate.
Benchmarks
| Benchmark | What it measures | Score |
|---|---|---|
| GPQA Diamond | graduate-level science questions | 93.2% ± 1.6 |
| AIME | competition mathematics | 99.4% ± 0.4 |
| SimpleQA | short factual questions — the test for making things up | 42.5% ± 1.6 |
Scores by Epoch AI, CC BY 4.0. The ± is the margin of error: models inside each other's margins are tied, not ranked. Epoch's notes on this row: source “epoch”.
Dates
Using it
In the 00 app — pick it per agent, and per tier, then build your own agents on it. Get 00.
As a drop-in API — the same model at an OpenAI-compatible endpoint. Two settings:
- Create a workspace API key in the Overblast console — usage bills that workspace's AI tokens, at the prices on this page.
- Point your base URL at
https://brain.deployd.network/ai/v1. Chat completions with streaming, embeddings,/images,/audio/transcriptionsand/videos.
curl https://brain.deployd.network/ai/v1/chat/completions \
-H "Authorization: Bearer ob_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "deepseek/deepseek-v4.1-flash-1017",
"messages": [{ "role": "user", "content": "Hello" }]
}'
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