--- title: Deepseek V3.1 Terminus API | Text Generation | ModelsLab description: Build with Deepseek V3.1 Terminus 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-Terminus.md canonical: https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-V3.1-Terminus.md type: product component: Playground/LLM/Index generated_at: 2026-04-15T00:21:54.591130Z --- Deepseek V3.1 Terminus --- [LLMs.txt](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-V3.1-Terminus/llms.txt) [.md](https://modelslab.com/models/deepseek-ai/deepseek-ai-DeepSeek-V3.1-Terminus.md) deepseek-ai-DeepSeek-V3.1-Terminus deepseek-ai Closed Source Model Deepseek V3.1 Terminus --- 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 Terminus deepseek-ai deepseek-ai-DeepSeek-V3.1-Terminus 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) [M(](https://modelslab.com/models/together_ai/mistralai-Mistral-7B-Instruct-v0.3)[Together AI](https://modelslab.com/models/together_ai) [Mistral (7B) Instruct v0.3 Closed Source Model](https://modelslab.com/models/together_ai/mistralai-Mistral-7B-Instruct-v0.3) [Q2](https://modelslab.com/models/together_ai/Qwen-Qwen2-1.5B-Instruct)[Together AI](https://modelslab.com/models/together_ai) [Qwen 2 Instruct (1.5B) Closed Source Model](https://modelslab.com/models/together_ai/Qwen-Qwen2-1.5B-Instruct) [ML](https://modelslab.com/models/together_ai/meta-llama-Meta-Llama-3-8B-Instruct)[Together AI](https://modelslab.com/models/together_ai) [Meta Llama 3 8B Instruct Closed Source Model](https://modelslab.com/models/together_ai/meta-llama-Meta-Llama-3-8B-Instruct) [L4](https://modelslab.com/models/together_ai/meta-llama-Llama-4-Maverick-17B-128E)[Together AI](https://modelslab.com/models/together_ai) [Llama 4 Maverick 17B 128E Closed Source Model](https://modelslab.com/models/together_ai/meta-llama-Llama-4-Maverick-17B-128E) [DV](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-V3.2-Exp)[Together AI](https://modelslab.com/models/together_ai) [Deepseek V3.2 Exp Closed Source Model](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-V3.2-Exp) [OO](https://modelslab.com/models/open_router/openai-o4-mini)[Open Router](https://modelslab.com/models/open_router) [OpenAI: o4 Mini Closed Source Model](https://modelslab.com/models/open_router/openai-o4-mini) [NN](https://modelslab.com/models/together_ai/nvidia-NVIDIA-Nemotron-Nano-9B-v2)[Together AI](https://modelslab.com/models/together_ai) [Nvidia Nemotron Nano 9B V2 Closed Source Model](https://modelslab.com/models/together_ai/nvidia-NVIDIA-Nemotron-Nano-9B-v2) [OG](https://modelslab.com/models/open_router/openai-gpt-4o-audio-preview)[Open Router](https://modelslab.com/models/open_router) [OpenAI: GPT-4o Audio Closed Source Model](https://modelslab.com/models/open_router/openai-gpt-4o-audio-preview) [TR](https://modelslab.com/models/open_router/thedrummer-rocinante-12b)[Open Router](https://modelslab.com/models/open_router) [TheDrummer: Rocinante 12B Closed Source Model](https://modelslab.com/models/open_router/thedrummer-rocinante-12b) [NA](https://modelslab.com/models/open_router/nex-agi-deepseek-v3.1-nex-n1)[Open Router](https://modelslab.com/models/open_router) [Nex AGI: DeepSeek V3.1 Nex N1 Closed Source Model](https://modelslab.com/models/open_router/nex-agi-deepseek-v3.1-nex-n1) [MK](https://modelslab.com/models/open_router/moonshotai-kimi-k2-thinking)[Open Router](https://modelslab.com/models/open_router) [MoonshotAI: Kimi K2 Thinking Closed Source Model](https://modelslab.com/models/open_router/moonshotai-kimi-k2-thinking) [ML](https://modelslab.com/models/open_router/meta-llama-llama-3.2-11b-vision-instruct)[Open Router](https://modelslab.com/models/open_router) [Meta: Llama 3.2 11B Vision Instruct Closed Source Model](https://modelslab.com/models/open_router/meta-llama-llama-3.2-11b-vision-instruct) [Q7](https://modelslab.com/models/qwen/Qwen-Qwen2.5-7B-Instruct-Turbo)[ModelsLab](https://modelslab.com/models/qwen) [Qwen2.5 7B Instruct Turbo Closed Source Model](https://modelslab.com/models/qwen/Qwen-Qwen2.5-7B-Instruct-Turbo) [MV](https://modelslab.com/models/open_router/anthracite-org-magnum-v4-72b)[Open Router](https://modelslab.com/models/open_router) [Magnum v4 72B Closed Source Model](https://modelslab.com/models/open_router/anthracite-org-magnum-v4-72b) [WP](https://modelslab.com/models/open_router/writer-palmyra-x5)[Open Router](https://modelslab.com/models/open_router) [Writer: Palmyra X5 Closed Source Model](https://modelslab.com/models/open_router/writer-palmyra-x5) [Q7](https://modelslab.com/models/together_ai/Qwen-Qwen2.5-72B-Instruct-Turbo)[Together AI](https://modelslab.com/models/together_ai) [Qwen2.5 72B Instruct Turbo Closed Source Model](https://modelslab.com/models/together_ai/Qwen-Qwen2.5-72B-Instruct-Turbo) [DR](https://modelslab.com/models/open_router/deepseek-deepseek-r1-distill-llama-70b)[Open Router](https://modelslab.com/models/open_router) [DeepSeek: R1 Distill Llama 70B Closed Source Model](https://modelslab.com/models/open_router/deepseek-deepseek-r1-distill-llama-70b) [DR](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-R1-Original)[Together AI](https://modelslab.com/models/together_ai) [DeepSeek R1 (Original) Closed Source Model](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-R1-Original) About Deepseek V3.1 Terminus --- Deepseek V3.1 Terminus is a text generation AI model by Deepseek Ai available on ModelsLab. Access Deepseek V3.1 Terminus through our API with pay-per-use pricing and no minimum commitments. ### Technical Specifications Model IDdeepseek-ai-DeepSeek-V3.1-TerminusCategoryLLM ModelsTaskText GenerationAddedApril 4, 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 Terminus 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-Terminus", "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-Terminus/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 Terminus FAQ --- ### What is Deepseek V3.1 Terminus? Deepseek V3.1 Terminus 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 Terminus API? You can integrate Deepseek V3.1 Terminus 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-Terminus" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### What is the Deepseek V3.1 Terminus model ID? The model ID for Deepseek V3.1 Terminus is "deepseek-ai-DeepSeek-V3.1-Terminus". Use this ID in your API requests to specify this model. ### Does Deepseek V3.1 Terminus have a free tier? Yes, ModelsLab offers a free tier that lets you try Deepseek V3.1 Terminus 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*