DeepSeek V3.1
DeepSeek V3.1 (DeepSeek, 2025) is an chat model. DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...
by DeepSeek · 164K token context window
Best for
- low-latency chat and routing
- request routing and triage
- text classification
Ways to use DeepSeek V3.1 in osFoundry
Connect with your own key (BYOK)
Open the key dialog and paste your DeepSeek API key. osFoundry discovers DeepSeek V3.1 automatically — assign it to a Maestro role (router, direct, orchestrator, or fallback) in the Pipeline tab and it is live in every chat. Your key, your provider account — no token markup.
Use it in a Room App
Room Apps declare AI features in their manifest, then call them with invokeAI:
import { invokeAI } from '@osfoundry/app-sdk'
// 'summarize' is an AI feature declared in your app manifest.
const result = await invokeAI('summarize', userText)
Call it from your own apps
Once a model is wired into your workspace you can host it as an API and reach it from your own services, scripts, or CI — outside osFoundry.
Run DeepSeek V3.1 yourself
DeepSeek V3.1 is also available as open weights — self-host it for full data control and no per-token cost. See that page for GPU requirements and a cost comparison against API pricing.
DeepSeek V3.1 vs similar models
Licence
Hosted — usage subject to provider terms — Hosted-only model — usage governed by the provider's API terms. Bring your own provider key.
No weights distributed; usage subject to provider terms.
Frequently asked about DeepSeek V3.1
How much does DeepSeek V3.1 cost?
DeepSeek V3.1 is metered at $ 0.210 /1M for input, and $ 0.790 /1M for output. Bring your own DeepSeek API key — osFoundry passes through provider pricing without markup.
Can I use DeepSeek V3.1 commercially?
Commercial use is allowed with conditions. Hosted-only model — usage governed by the provider's API terms. Bring your own provider key. No weights distributed; usage subject to provider terms.
What is the context window of DeepSeek V3.1?
DeepSeek V3.1 supports a 164K token context window.
Can I run DeepSeek V3.1 locally?
No — DeepSeek V3.1 is hosted only and accessed via the DeepSeek API. An open-weights equivalent is available to self-host — see the cross-link above.
What is DeepSeek V3.1 best at?
DeepSeek V3.1 is well-suited to low-latency chat and routing, request routing and triage, text classification.
How do I use DeepSeek V3.1 in osFoundry?
Paste your DeepSeek API key in the key dialog (or deploy the open weights for self-hostable models), assign DeepSeek V3.1 to a Maestro role in the Pipeline tab, then use it in chat, Room Apps via invokeAI, or your own apps.
Published by DeepSeek on August 21, 2025. Source: https://openrouter.ai/deepseek/deepseek-chat-v3.1