Pass IndexThe State of AISign in

DeepSeek-V3.1

DeepSeek-V3.1 is post-trained on the top of DeepSeek-V3.1-Base, which is built upon the original V3 base checkpoint through a two-phase long context extension approach, following the methodology outlined in the original DeepSeek-V3 report.

text → text · made by DeepSeek

$0.25$0.95per Mtok in / out
DeepInfra · 18 sellers

Sold by 30 ways

SellerLaneRate
Google Vertex AI 0 ways$0.3per Mtok in$0.85per Mtok out
Google Vertex AI cloudnot on the seller's list todaybatch$0.3per Mtok in$0.85per Mtok outcloud.google.com · read 2026-08-24
AWS Bedrock cloudstandard$0.58per Mtok in$1.68per Mtok outmodels.dev · read 2026-09-16
Google Vertex AI cloudstandard$0.6per Mtok in$1.7per Mtok out$0.06per Mtok cachedcloud.google.com · read 2026-08-24
Microsoft Azure AI cloudstandard$1.23per Mtok in$4.94per Mtok outraw.githubusercontent.com · read 2026-09-16
Thinking Machines Lab apitraining$1.7per Mtok in$4.21per Mtok out$0.34per Mtok cachedtinker-docs.thinkingmachines.ai · read 2026-08-25
Requesty aggregatornot on the seller's list todaydeepinfra flex$0.18per Mtok in$0.68per Mtok out$0.094per Mtok cachedrouter.requesty.ai · read 2026-08-25
Requesty aggregatordeepinfra$0.2per Mtok in$0.76per Mtok out$0.1per Mtok cachedrouter.requesty.ai · read 2026-09-15
DeepInfra aggregatorstandard$0.25per Mtok in$0.95per Mtok out$0.13per Mtok cachedapi.deepinfra.com · read 2026-08-25
Hugging Face Inference Providers 3 ways$0.27per Mtok in$1per Mtok out
Hugging Face Inference Providers aggregatordeepinfra$0.25per Mtok in$0.95per Mtok outrouter.huggingface.co · read 2026-08-25
Hugging Face Inference Providers aggregatorstandard$0.27per Mtok in$1per Mtok outmodels.dev · read 2026-09-16
Hugging Face Inference Providers aggregatornovita$0.27per Mtok in$1per Mtok outrouter.huggingface.co · read 2026-08-25
Nous Research aggregatorstandard$0.25per Mtok in$0.95per Mtok out$0.13per Mtok cachedinference-api.nousresearch.com · read 2026-09-12
OpenRouter 8 ways$0.25per Mtok in$0.95per Mtok out$0.13per Mtok cached
OpenRouter aggregatorstandard$0.25per Mtok in$0.95per Mtok out$0.13per Mtok cachedopenrouter.ai · read 2026-09-08
OpenRouter aggregatordeepinfra/fp4$0.25per Mtok in$0.95per Mtok out$0.13per Mtok cachedopenrouter.ai · read 2026-08-25
OpenRouter aggregatornovita/fp8$0.27per Mtok in$1per Mtok out$0.14per Mtok cachedopenrouter.ai · read 2026-08-25
OpenRouter aggregatorsiliconflow/fp8$0.27per Mtok in$1per Mtok outopenrouter.ai · read 2026-08-25
OpenRouter aggregatoratlas-cloud/fp8$0.3per Mtok in$0.95per Mtok out$0.13per Mtok cachedopenrouter.ai · read 2026-08-25
OpenRouter aggregatorcoreweave/fp8$0.55per Mtok in$1.65per Mtok out$0.55per Mtok cachedopenrouter.ai · read 2026-09-02
OpenRouter aggregatornot on the seller's list todaygoogle-vertex/us-west2$0.6per Mtok in$1.7per Mtok outopenrouter.ai · read 2026-08-25
OpenRouter aggregatormara$0.6per Mtok in$1.7per Mtok outopenrouter.ai · read 2026-08-25
OpenRouter aggregatorsambanova/fp8$0.65per Mtok in$1.5per Mtok outopenrouter.ai · read 2026-08-25
Vercel AI Gateway aggregatorstandard$0.25per Mtok in$0.95per Mtok out$0.13per Mtok cachedai-gateway.vercel.sh · read 2026-08-25
Novita AI aggregatorstandard$0.27per Mtok in$1per Mtok out$0.14per Mtok cachedapi.novita.ai · read 2026-08-25
SiliconFlow aggregatorstandard$0.27per Mtok in$1per Mtok outmodels.dev · read 2026-09-16
Baseten aggregatorstandard$0.5per Mtok in$1.5per Mtok outmodels.dev · read 2026-09-16
Fireworks AI aggregatorstandard$0.56per Mtok in$1.68per Mtok outraw.githubusercontent.com · read 2026-09-16
ElectronHub aggregatorstandard$0.6per Mtok in$1.6per Mtok outapi.electronhub.ai · read 2026-09-16
Together AI aggregatorstandard$0.6per Mtok in$1.7per Mtok outmodels.dev · read 2026-09-16
SambaNova Cloud aggregatorstandard$3per Mtok in$4.5per Mtok outraw.githubusercontent.com · read 2026-09-16
PPIO aggregatorstandard$4per Mtok in$12per Mtok outapi.ppinfra.com · read 2026-09-10

Measured 15 standings

PlaceBoardMetricScore
18thof 61AIME 2025Accuracy (± 95% CI) (think)90.83
19thof 105Vectara Hallucination LeaderboardHallucination Rate5.5
25thof 42Fictionlivebench — Epoch AI120k token score0.531
58thof 81Forecastbench — Epoch AIOverall score58
73rdof 102Simplebench — Epoch AIScore (AVG@5)0.4
108thof 147Design Arena · 3d (models)Elo1105
109thof 109Design Arena · svg (models)Elo992
114thof 155Design Arena · gamedev (models)Elo1107
117thof 156Design Arena · codecategories (models)Elo1127
117thof 150Design Arena · uicomponent (models)Elo1100
117thof 162Design Arena · website (models)Elo1135
122ndof 152Design Arena · dataviz (models)Elo1111
123rdof 402LMArena · TextScore (Elo)1417
127thof 170Weirdml — Epoch AIAccuracy37.5
449thof 656Epoch capabilities index — Epoch AIECI Score139.95

About

DeepSeek-V3.1 — a text model from DeepSeek, sold by 18 companies from $0.25 in and $0.95 out per million tokens, placed 19th of 105 on Vectara Hallucination Leaderboard.

It takes text and returns text, with a context window of 163,840 tokens. It was published in 2025. Its sellers say it can reason step by step and call a tool. The catalogue files it under reasoning and agents. Eighteen companies sell it. The cheapest is $0.25 in and $0.95 out per million tokens at DeepInfra. Beside the standard rate there are separately routed and regional lanes. It has been measured on 15 boards, and stands best at 19th of 105 on Vectara Hallucination Leaderboard.

Every current figure

Maker
DeepSeek
Register
model
Takes
text
Returns
text
Context
163,840 tokens
Published
2025
Parameters
685 billion
Licence
not read
Sellers
18
Maker's own price
not read
Price
$0.25 in and $0.95 out per million tokens — DeepInfra
Boards
15
Best place
19th of 105 — Vectara Hallucination Leaderboard

Known as 8 names

DeepSeek-v3.1 (Think)V3.1deepseek-ai/DeepSeek-V3.1deepseek/deepseek-chat-v3.1deepseek/deepseek-v3.1deepinfra/deepseek-ai/DeepSeek-V3.1deepinfra/deepseek-ai/DeepSeek-V3.1:flexDeepSeek: DeepSeek V3.1