--- title: Deepseek V3.1 Base API | Text Generation | ModelsLab description: Build with Deepseek V3.1 Base API by Deepseek Ai. Text generation, chat, code, and reasoning. Pay-per-use. Free tier. url: https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-V3.1-Base.md canonical: https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-V3.1-Base.md type: product component: Playground/LLM/Index generated_at: 2026-04-15T00:20:59.676697Z --- Deepseek V3.1 Base --- [LLMs.txt](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-V3.1-Base/llms.txt) [.md](https://modelslab.com/models/deepseek-ai/deepseek-ai-DeepSeek-V3.1-Base.md) deepseek-ai-DeepSeek-V3.1-Base deepseek-ai Closed Source Model Deepseek V3.1 Base --- Choose a prompt below to get started or type your own message Explain quantum computing in simple terms Write a Python function to sort a list Create a marketing email for a SaaS product Compare REST vs GraphQL APIs Send ### Deepseek V3.1 Base deepseek-ai deepseek-ai-DeepSeek-V3.1-Base Copy model ID PricingInput $0.00 / 1M tokens Output $0.00 / 1M tokens API EndpointsOpenAI Compatible `https://modelslab.com/api/v7/llm/chat/completions`Endpoint Anthropic Compatible `https://modelslab.com/api/v7/llm/v1/messages`Messages `https://modelslab.com/api/v7/llm/v1/messages/count_tokens`Count Tokens `https://modelslab.com/api/v7/llm/v1/models`Models Use with Claude Code cURL Example ParametersSystem MessageYou are a helpful AI assistant specialized in providing accurate and detailed responses. Temperature0.7 Max Tokens1000 Top P0.9 Frequency Penalty0 Presence Penalty0 Model Info Support Related Models --- Discover similar models you might be interested in [View all LLM Models](https://modelslab.com/models?feature=llmaster) [OG](https://modelslab.com/models/open_router/openai-gpt-5-chat)[Open Router](https://modelslab.com/models/open_router) [OpenAI: GPT-5 Chat Closed Source Model](https://modelslab.com/models/open_router/openai-gpt-5-chat) [QQ](https://modelslab.com/models/open_router/qwen-qwen3-vl-235b-a22b-thinking)[Open Router](https://modelslab.com/models/open_router) [Qwen: Qwen3 VL 235B A22B Thinking Closed Source Model](https://modelslab.com/models/open_router/qwen-qwen3-vl-235b-a22b-thinking) [QQ](https://modelslab.com/models/open_router/qwen-qwen3-vl-30b-a3b-thinking)[Open Router](https://modelslab.com/models/open_router) [Qwen: Qwen3 VL 30B A3B Thinking Closed Source Model](https://modelslab.com/models/open_router/qwen-qwen3-vl-30b-a3b-thinking) [QQ](https://modelslab.com/models/open_router/qwen-qwen3.5-27b)[Open Router](https://modelslab.com/models/open_router) [Qwen: Qwen3.5-27B Closed Source Model](https://modelslab.com/models/open_router/qwen-qwen3.5-27b) [Q1](https://modelslab.com/models/together_ai/Qwen-Qwen2.5-1.5B-Instruct)[Together AI](https://modelslab.com/models/together_ai) [Qwen2.5 1.5B Instruct Closed Source Model](https://modelslab.com/models/together_ai/Qwen-Qwen2.5-1.5B-Instruct) [DV](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-V3.1)[Together AI](https://modelslab.com/models/together_ai) [Deepseek V3.1 Closed Source Model](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-V3.1) [GL](https://modelslab.com/models/open_router/google-lyria-3-pro-preview)[Open Router](https://modelslab.com/models/open_router) [Google: Lyria 3 Pro Preview Closed Source Model](https://modelslab.com/models/open_router/google-lyria-3-pro-preview) [AC](https://modelslab.com/models/open_router/anthropic-claude-opus-4.5)[Open Router](https://modelslab.com/models/open_router) [Anthropic: Claude Opus 4.5 Closed Source Model](https://modelslab.com/models/open_router/anthropic-claude-opus-4.5) [QQ](https://modelslab.com/models/open_router/qwen-qwen3.5-plus-02-15)[Open Router](https://modelslab.com/models/open_router) [Qwen: Qwen3.5 Plus 2026-02-15 Closed Source Model](https://modelslab.com/models/open_router/qwen-qwen3.5-plus-02-15) [GN](https://modelslab.com/models/open_router/google-gemini-3.1-flash-image-preview)[Open Router](https://modelslab.com/models/open_router) [Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) Closed Source Model](https://modelslab.com/models/open_router/google-gemini-3.1-flash-image-preview) [XM](https://modelslab.com/models/open_router/xiaomi-mimo-v2-flash)[Open Router](https://modelslab.com/models/open_router) [Xiaomi: MiMo-V2-Flash Closed Source Model](https://modelslab.com/models/open_router/xiaomi-mimo-v2-flash) [MM](https://modelslab.com/models/together_ai/MiniMaxAI-MiniMax-M2.5)[Together AI](https://modelslab.com/models/together_ai) [MiniMax M2.5 FP4 Closed Source Model](https://modelslab.com/models/together_ai/MiniMaxAI-MiniMax-M2.5) [AO](https://modelslab.com/models/open_router/allenai-olmo-2-0325-32b-instruct)[Open Router](https://modelslab.com/models/open_router) [AllenAI: Olmo 2 32B Instruct Closed Source Model](https://modelslab.com/models/open_router/allenai-olmo-2-0325-32b-instruct) [QQ](https://modelslab.com/models/open_router/qwen-qwen-plus-2025-07-28-thinking)[Open Router](https://modelslab.com/models/open_router) [Qwen: Qwen Plus 0728 (thinking) Closed Source Model](https://modelslab.com/models/open_router/qwen-qwen-plus-2025-07-28-thinking) [MS](https://modelslab.com/models/open_router/mistralai-mistral-saba)[Open Router](https://modelslab.com/models/open_router) [Mistral: Saba Closed Source Model](https://modelslab.com/models/open_router/mistralai-mistral-saba) [AO](https://modelslab.com/models/open_router/allenai-olmo-3-32b-think)[Open Router](https://modelslab.com/models/open_router) [AllenAI: Olmo 3 32B Think Closed Source Model](https://modelslab.com/models/open_router/allenai-olmo-3-32b-think) [XG](https://modelslab.com/models/open_router/x-ai-grok-4.20-multi-agent)[Open Router](https://modelslab.com/models/open_router) [xAI: Grok 4.20 Multi-Agent Closed Source Model](https://modelslab.com/models/open_router/x-ai-grok-4.20-multi-agent) [OG](https://modelslab.com/models/open_router/openai-gpt-5-mini)[Open Router](https://modelslab.com/models/open_router) [OpenAI: GPT-5 Mini Closed Source Model](https://modelslab.com/models/open_router/openai-gpt-5-mini) About Deepseek V3.1 Base --- Deepseek V3.1 Base is a text generation AI model by Deepseek Ai available on ModelsLab. Access Deepseek V3.1 Base through our API with pay-per-use pricing and no minimum commitments. ### Technical Specifications Model IDdeepseek-ai-DeepSeek-V3.1-BaseCategoryLLM ModelsTaskText GenerationAddedApril 8, 2026 ### Key Features - Chat completion and multi-turn conversation API - Streaming response with token-by-token output - Function calling and tool use support - System prompts and role-based messaging - JSON mode and structured output ### Quick Start Integrate Deepseek V3.1 Base into your application with a single API call. Get your API key from the [pricing page](https://modelslab.com/pricing) to get started. PythonJavaScriptcURLPHP ``` import requests import json url = "https://modelslab.com/api/v7/llm/chat/completions" headers = { "Content-Type": "application/json" } data = { "model_id": "deepseek-ai-DeepSeek-V3.1-Base", "messages": [ { "role": "user", "content": "Hello!" } ], "max_tokens": 1000, "key": "YOUR_API_KEY" } try: response = requests.post(url, headers=headers, json=data) response.raise_for_status() # Raises an HTTPError for bad responses (4XX or 5XX) result = response.json() print("API Response:") print(json.dumps(result, indent=2)) except requests.exceptions.HTTPError as http_err: print(f"HTTP error occurred: {http_err} - {response.text}") except Exception as err: print(f"Other error occurred: {err}") ``` View the [full API documentation](https://modelslab.com/models/deepseek-ai/deepseek-ai-DeepSeek-V3.1-Base/api) for SDKs, code examples in Python, JavaScript, and more. ### Use Cases - AI chatbots and virtual assistants - Code generation and developer tools - Content writing and copywriting automation - Data analysis, summarization, and extraction [Browse LLM Models](https://modelslab.com/models?feature=llmaster) [More from Deepseek Ai](https://modelslab.com/models/open_router) [View Pricing](https://modelslab.com/pricing) Deepseek V3.1 Base FAQ --- ### What is Deepseek V3.1 Base? Deepseek V3.1 Base is a text generation AI model by Deepseek Ai available on ModelsLab. Access it through our API with pay-per-use pricing and no minimum commitments. ### How do I use the Deepseek V3.1 Base API? You can integrate Deepseek V3.1 Base into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "deepseek-ai-DeepSeek-V3.1-Base" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### What is the Deepseek V3.1 Base model ID? The model ID for Deepseek V3.1 Base is "deepseek-ai-DeepSeek-V3.1-Base". Use this ID in your API requests to specify this model. ### Does Deepseek V3.1 Base have a free tier? Yes, ModelsLab offers a free tier that lets you try Deepseek V3.1 Base and other AI models. Sign up to get free API credits and start building immediately. --- *This markdown version is optimized for AI agents and LLMs.* **Links:** - [Website](https://modelslab.com) - [API Documentation](https://docs.modelslab.com) - [Blog](https://modelslab.com/blog) --- *Generated by ModelsLab - 2026-04-15*