identity

open weights

deepseek-v3.1DeepSeek

Name: deepseek-v3.1
Brand: DeepSeek
SKU: deepseek/deepseek-v3.1
Price: 0.2000 USD
Availability: InStock

from /1M in$0.20deepinfra inc.

context164Ktokens

providers11 region

price spread1.5x2 endpoints

endpoints: 2
regions: 1
api: chat
released: August 2025

capabilities 2/8

visionreasoningtoolscachingweb searchjson schemacomputer useimage gen

The same weights cost 1.5x more on deepinfra inc. than on deepinfra inc.. That is what the endpoints table is for.

endpoints

2 / 1 region

Providers serving deepseek-v3.1, with pricing and measured performance. Best value in each column is coloured.
#							flags
1	DeepInfra Inc.	Global	164K	$0.20	$0.76	$0.10	zdr
2	DeepInfra Inc.	Global	164K	$0.30	$1.00	$0.30	zdr

provider price, no markupper 1M tokensblank where no qualifying sample

measured

through Sep 12

no measured traffic for this model yet. the endpoints table above carries provider pricing

benchmarks

artificial analysis

Benchmark scores, each normalised to 100
eval	Score as a share of 100	/100
MMLU Pro		83.3
GPQA Diamond		73.5
LiveCodeBench		57.7
Math Index		49.7
AIME 2025		49.7
τ²-Bench		34.8
Terminal-Bench Hard		24.2
Intelligence Index		13.7
Humanity's Last Exam		6.7
9 evals	mean	43.7

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 2025-08-21.

call it

model=

deepinfra/deepseek-ai/DeepSeek-V3.1:flex

this model has no managed policy yet, so call the provider endpoint directly. every id in the endpoints table works the same way

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

quickstart

openai compatible

main.py

1from openai import OpenAI2 3client = OpenAI(4    api_key="YOUR_REQUESTY_API_KEY",5    base_url="https://router.requesty.ai/v1",6)7 8response = client.chat.completions.create(9    model="deepinfra/deepseek-ai/DeepSeek-V3.1:flex",10    messages=[11        {"role": "user", "content": "Explain quantum computing in one paragraph."},12    ],13)14 15print(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-V3.1 by DeepSeek-AI is a state-of-the-art, hybrid-inference artificial intelligence model that allows users to toggle between fast conversational responses and deep logical reasoning modes within a single architecture.

questions 5

Which providers serve deepseek-v3.1?

deepseek-v3.1 is available from 1 provider through Requesty: DeepInfra Inc.. All endpoints share one OpenAI-compatible API and one key, and Requesty fails over between them automatically.

How much does deepseek-v3.1 cost?

Pricing starts at $0.20 per million input tokens and $0.76 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-v3.1 open weights?

Yes. deepseek-v3.1 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-v3.1?

deepseek-v3.1 supports up to 164K tokens of context. Some providers expose a smaller window; check the per-endpoint context column above.

How do I use deepseek-v3.1 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 "deepinfra/deepseek-ai/DeepSeek-V3.1:flex" or any endpoint id from the table above. The quickstart section shows Python, JavaScript and cURL snippets.

more from deepseek 6

Other DeepSeek models
model	context	from /M	providers
deepseek-v4.1-flash	1.0M	$0.22	3
deepseek-v4-flash-vision-exp	1.0M	$0.22	1
deepseek-v4-pro-0813	1.0M	$1.30	4
deepseek-v4-flash-0731	1.0M	$0.07	8
deepseek-v4-pro-0424	1.0M	$1.04	4
deepseek-v4-flash-0424	1.0M	$0.07	4

route deepseek-v3.1 through one endpoint

One key for 1 provider 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