--- title: ByteDance Seed: Seed 2.1 Turbo | Text Generation | ModelsLab description: Build with ByteDance Seed: Seed 2.1 Turbo API by ByteDance Seed. Text generation, chat, code, and reasoning. Plans from $21/month. url: https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/bytedance-seed/bytedance-seed-seed-2-1-turbo.md canonical: https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/bytedance-seed/bytedance-seed-seed-2-1-turbo type: product component: Playground/LLM/Index generated_at: 2026-08-26T02:19:36.175681Z --- ByteDance Seed: Seed 2.1 Turbo --- [LLMs.txt](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/bytedance-seed/bytedance-seed-seed-2-1-turbo/llms.txt) [.md](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/bytedance-seed/bytedance-seed-seed-2-1-turbo.md) ByteDance Seed: Seed 2.1 Turbo --- 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 ### ByteDance Seed: Seed 2.1 Turbo bytedance-seed bytedance-seed-seed-2-1-turbo Copy model ID PricingInput $0.50 / 1M tokens Output $2.50 / 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 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 is suited for end-to-end software delivery, multi-step task execution, and understanding visual and... ### Technical Specifications Model IDbytedance-seed-seed-2-1-turbo CategoryLLM Models TaskText Generation Price$1.5 per million tokens AddedAugust 12, 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 ByteDance Seed: Seed 2.1 Turbo into your application with a single API call. Get your API key from the [pricing page](https://modelslab-frontend-v2-927501783998.us-east4.run.app/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": "bytedance-seed-seed-2-1-turbo", "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 ByteDance Seed: Seed 2.1 Turbo API costs $1.5 per million tokens. Pay only for what you use with no minimum commitments. [View pricing plans](https://modelslab-frontend-v2-927501783998.us-east4.run.app/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-frontend-v2-927501783998.us-east4.run.app/models?feature=llmaster) [More from ByteDance Seed](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [View Pricing](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) ByteDance Seed: Seed 2.1 Turbo FAQ --- ### What is ByteDance Seed: Seed 2.1 Turbo? Seed 2.1 Turbo is a multimodal model from ByteDance Seed for coding and long-horizon agent workflows. It is suited for end-to-end software delivery, multi-step task execution, and understanding visual and... ### How do I use the ByteDance Seed: Seed 2.1 Turbo API? You can integrate ByteDance Seed: Seed 2.1 Turbo into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "bytedance-seed-seed-2-1-turbo" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does ByteDance Seed: Seed 2.1 Turbo cost? ByteDance Seed: Seed 2.1 Turbo costs $1.5 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 ByteDance Seed: Seed 2.1 Turbo model ID? The model ID for ByteDance Seed: Seed 2.1 Turbo is "bytedance-seed-seed-2-1-turbo". Use this ID in your API requests to specify this model. ### Do I need a paid plan to use ByteDance Seed: Seed 2.1 Turbo? 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 - 2026-08-26*