--- title: Qwen: Qwen3 8B API | Text Generation | ModelsLab description: Dense 8.2B parameter LLM with 128K context, hybrid thinking modes for reasoning/math/coding, trained on 36T tokens across 119 languages; excels in efficient inference on consumer GPUs (16GB FP16).[1][2][3] url: https://modelslab.com/models/qwen/qwen-qwen3-8b.md canonical: https://modelslab.com/models/qwen/qwen-qwen3-8b type: product component: Playground/LLM/Index generated_at: 2026-09-11T05:17:42.833328Z --- Qwen: Qwen3 8B --- [LLMs.txt](https://modelslab.com/models/qwen/qwen-qwen3-8b/llms.txt) [.md](https://modelslab.com/models/qwen/qwen-qwen3-8b.md) Qwen: Qwen3 8B --- 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 text files Send ### Qwen: Qwen3 8B qwen qwen-qwen3-8b Copy model ID PricingInput $0.117 / 1M tokens Output $0.455 / 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 Tokens4000 Top P0.9 Frequency Penalty0 Presence Penalty0 Thinkinglow lowmediumhigh Deeper thinking spends more of the Max Tokens budget before the answer starts. Model Info Support Looking for something different? --- Models that trade off differently against the one you are viewing ### Better quality Newer flagship models that generally produce stronger results. 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It supports seamless switching between "thinking" mode for math,... ### Technical Specifications Model IDqwen-qwen3-8b CategoryLLM Models TaskText Generation Price$0.286 per million tokens AddedFebruary 20, 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 Qwen: Qwen3 8B 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": "qwen-qwen3-8b", "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}") ``` ### Pricing Qwen: Qwen3 8B API costs $0.286 per million tokens. Pay only for what you use with no minimum commitments. [View pricing plans](https://modelslab.com/pricing) ### 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 Qwen](https://modelslab.com/models/open_router) [View Pricing](https://modelslab.com/pricing) Qwen: Qwen3 8B FAQ --- ### What is Qwen: Qwen3 8B? Qwen3-8B is a dense 8.2B parameter causal language model from the Qwen3 series, designed for both reasoning-heavy tasks and efficient dialogue. It supports seamless switching between "thinking" mode for math,... ### How do I use the Qwen: Qwen3 8B API? You can integrate Qwen: Qwen3 8B into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "qwen-qwen3-8b" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does Qwen: Qwen3 8B cost? Qwen: Qwen3 8B costs $0.286 per million tokens. ModelsLab plans start at $21/month (Basic), and the $149/month Open Source plan includes unlimited generation on open-source models. ### What is the Qwen: Qwen3 8B model ID? The model ID for Qwen: Qwen3 8B is "qwen-qwen3-8b". Use this ID in your API requests to specify this model. ### Do I need a paid plan to use Qwen: Qwen3 8B? Yes. ModelsLab is subscription-based with no free tier — plans start at $21/month (Basic, 3,250 API calls). The $149/month Open Source Unlimited plan includes unlimited generation across open-source models; premium third-party models are billed per call from your wallet. --- *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 - 2026-09-11*