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deepseek-v4.1-flash-1017DeepSeek

from /1M in$0.10deepinfra
context1.0M393K out
best ttft386mstogether ai
price spread5.1x9 endpoints
endpoints
9
regions
2
best tok/s
239
api
chat
released
October 2026
eu routing
available

capabilities 6/8

visionreasoningtoolscachingweb searchjson schemacomputer useimage gen

The same weights cost 5.1x more on sference than on deepinfra. That is what the endpoints table is for.

endpoints

9 / 2 regions
Providers serving deepseek-v4.1-flash-1017, with pricing and measured performance. Best value in each column is coloured.
#flags
1DeepInfraGlobal1.0M$0.10$0.29$0.00291.70s86.0zdr
2DeepInfraGlobal1.0M$0.15$0.44$0.00441.70s86.0zdr
3RunwareGlobal1.0M$0.15$0.60$0.012.09s117.0zdr
4MeliousEU1M$0.23$1.14$0.02590ms66.0zdr
5DeepSeekGlobal1M$0.30$1.20$0.00601.19s139.0-no-train
6Fireworks AIGlobal1.0M$0.30$1.20$0.00601.88s135.0-zdr
7Together AIGlobal1.0M$0.30$1.20$0.0060386ms184.0zdr
8sferenceEU1.0M$0.50$1.50$0.05520ms239.0-zdr
9TensorXEU1.0M$0.50$1.50$0.131.88s138.0zdr
provider price, no markupper 1M tokensblank where no qualifying sample

measured

through Nov 2
median
-202ms1.44s3.08s08-3109-2811-022.80s2.31s1.80s1.42s1.28s1.21s749ms652ms
hover the plot for weekly values
time to first token per provider: current value, window low and high, and change across the window
providernowlowhighchange
Together AI386ms370ms2.80s+381%
sference520ms71ms794ms+955%
Melious590ms608ms689ms+7.2%
DeepSeek1.19s752ms1.50s+70%
DeepInfra1.70s1.05s1.93s+36%
TensorX1.88s1.00s1.48s+19%
Fireworks AI1.88s1.19s2.31s+71%
Runware2.09s1.60s2.10s-5.4%

median wait before the first token lands. this is the number a user feels, and it moves with provider load through the day.

Lines are steps: each sample is one week of traffic held flat, not a slide from the week before. Click a name in the key to drop it from the plot. Measured through Nov 2.

benchmarks

artificial analysis
Benchmark scores, each normalised to 100
evalScore as a share of 100/100
SciCode55.9
Humanity's Last Exam43.3
Intelligence Index32.5
3 evalsmean43.9

Scores from Artificial Analysis and public leaderboards, normalised to 100. Bar colour is the band, not the rank: green 80 and up, blue 55 and up, amber 30 and up. Benchmarks measure narrow skills, so test on your own workload before committing. Released 2026-10-17.

call it

model=
deepseek-v4.1-flash-1017

requesty routes this id across every provider serving deepseek-v4.1-flash-1017, picking on price and health and failing over automatically. the id stays valid when a provider changes underneath it

Base url is https://router.requesty.ai/v1 for every id here. One key reaches the whole catalog.

quickstart

openai compatible
main.py
from openai import OpenAI client = OpenAI(    api_key="YOUR_REQUESTY_API_KEY",    base_url="https://router.requesty.ai/v1",) response = client.chat.completions.create(    model="deepseek-v4.1-flash-1017",    messages=[        {"role": "user", "content": "Explain quantum computing in one paragraph."},    ],) print(response.choices[0].message.content)

Change the base url, use your Requesty key, set the model to any id in the call pane. Existing OpenAI SDK code needs no other edit, and the same key reaches every other model in the catalog, so switching later is a one-parameter change. Browse all models

notes

reference

DeepSeek V4.1 Flash 1017 is a minor update to DeepSeek V4.1 Flash with substantial gains in reasoning, coding, agentic tasks and visual benchmarks, plus shorter outputs and faster task completion. 552B parameter Mixture of Experts with native vision, 1M token context, thinking and non thinking modes, tool calling, structured JSON output and prompt caching. Served on DeepInfra in FP8 with zero retention. Open weights on Hugging Face. Priority service tier at 1.5x standard pricing.

questions 7

Which providers serve deepseek-v4.1-flash-1017?
deepseek-v4.1-flash-1017 is available from 8 providers through Requesty: DeepInfra, Runware, Melious, DeepSeek, Fireworks AI, Together AI. All endpoints share one OpenAI-compatible API and one key, and Requesty fails over between them automatically.
How much does deepseek-v4.1-flash-1017 cost?
Pricing starts at $0.10 per million input tokens and $0.29 per million output tokens on the cheapest provider. Prices vary by provider and region; the table above shows every endpoint. Requesty charges exactly what the upstream provider charges, with no markup.
Is deepseek-v4.1-flash-1017 open weights?
Yes. deepseek-v4.1-flash-1017 is an open-weights model from DeepSeek, which is why multiple inference providers can host it. Provider choice affects price, latency, and data-privacy terms, all compared above.
What is the context window of deepseek-v4.1-flash-1017?
deepseek-v4.1-flash-1017 supports up to 1.0M tokens of context, with up to 393K output tokens per response. Some providers expose a smaller window; check the per-endpoint context column above.
Which provider is fastest for deepseek-v4.1-flash-1017?
In recent production traffic through Requesty, Together AI had the lowest median time to first token (386ms) for deepseek-v4.1-flash-1017. Latency shifts over time, so Requesty's latency-based routing picks the fastest healthy provider per request automatically.
How do I use deepseek-v4.1-flash-1017 with the OpenAI SDK?
Install the OpenAI SDK, set base_url to "https://router.requesty.ai/v1", set your API key to your Requesty key, and set the model to "deepseek-v4.1-flash-1017" or any endpoint id from the table above. The quickstart section shows Python, JavaScript and cURL snippets.
Should I call deepseek-v4.1-flash-1017 by its managed id or a provider id?
Use the managed id, "deepseek-v4.1-flash-1017". Requesty picks which of the 8 providers serves each request based on price and health, and fails over when one degrades, so the id keeps working while the routing changes underneath it. There is also an EU-only id, "deepseek-v4.1-flash-1017@eu", which routes the same way but only through EU-hosted providers. Send a provider id like "deepinfra/deepseek-v4.1-flash-1017" only when you need one specific deployment and want no failover.

more from deepseek 6

Other DeepSeek models
modelcontextfrom /Mproviders
deepseek-v4.1-flash1.0M$0.1511
deepseek-v4-flash-vision-exp1.0M$0.221
deepseek-v4-pro-08131.0M$1.305
deepseek-v4-flash-07311.0M$0.0710
deepseek-v4-pro-04241.0M$1.044
deepseek-v4-flash-04241.0M$0.074

route deepseek-v4.1-flash-1017 through one endpoint

One key for 8 providers on this model and 600+ others. No markup on provider prices, automatic failover, caching built in. Weekly aggregates in the measured pane come from production traffic routed through Requesty, one line per provider on a shared axis. Methodology

deepseek-v4.1-flash-10178 providers9 endpointsfrom $0.10 /1M inctx 1.0Mttft 386msspread 5.1xupdated Nov 2