--- title: Meta: Muse Spark Open API | Text Generation | ModelsLab description: Build with Meta: Muse Spark Open API by Meta. Text generation, chat, code, and reasoning. Plans from $21/month. url: https://modelslab.com/models/meta/meta-muse-spark-open.md canonical: https://modelslab.com/models/meta/meta-muse-spark-open type: product component: Playground/LLM/Index generated_at: 2026-10-21T06:18:21.729555Z --- Meta: Muse Spark Open --- [LLMs.txt](https://modelslab.com/models/meta/meta-muse-spark-open/llms.txt) [.md](https://modelslab.com/models/meta/meta-muse-spark-open.md) Meta: Muse Spark Open --- 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 images, PDFs and text files Send ### Meta: Muse Spark Open meta meta-muse-spark-open Copy model ID PricingInput $1.25 / 1M tokens Output $4.25 / 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. [OpenAI](https://modelslab.com/models/openai) [GPT 5.2](https://modelslab.com/models/openai/gpt-5.2) [OpenAI](https://modelslab.com/models/openai) [GPT 5.1](https://modelslab.com/models/openai/gpt5.1) [Google](https://modelslab.com/models/google) [Gemini 3 Pro Preview](https://modelslab.com/models/google/gemini-3-pro-preview) [OpenAI](https://modelslab.com/models/openai) [GPT-5.1-Codex-Max](https://modelslab.com/models/openai/gpt-5.1-codex-max) ### Lower cost per run Open-source models we host, unlimited on the $149/month plan. [ModelsLab](https://modelslab.com/models/modelslab) Popular [Modelslab: Custom LLM](https://modelslab.com/models/modelslab/uncensored-chat)Open Source Model [Qwen](https://modelslab.com/models/open_router) [Qwen: Qwen3 235B A22B Instruct 2507](https://modelslab.com/models/qwen/qwen-qwen3-235b-a22b-2507)Closed Source Model [Google](https://modelslab.com/models/google) [Gemini 2.5 Flash](https://modelslab.com/models/google/gemini-2.5-flash)Closed Source Model [OpenAI](https://modelslab.com/models/openai) [gpt-oss-20b](https://modelslab.com/models/openai/gpt-oss-20b)Closed Source Model [DeepSeek](https://modelslab.com/models/open_router) [DeepSeek: DeepSeek V4 Flash 0423](https://modelslab.com/models/deepseek/deepseek-deepseek-v4-flash)Closed Source Model [Google](https://modelslab.com/models/open_router) [Google: Gemini 3.1 Flash Lite](https://modelslab.com/models/google/google-gemini-3.1-flash-lite)Closed Source Model Related Models --- Discover similar models you might be interested in [View all LLM Models](https://modelslab.com/models?feature=llmaster) [#### IBM Granite/IBM: Granite 4.0 Micro ibm-granite-granite-4.0-h-micro From $0.06/M tokens](https://modelslab.com/models/ibm-granite/ibm-granite-granite-4.0-h-micro) [#### Meta/Meta Llama 3.2 11B Vision Instruct Turbo meta-llama-Llama-3.2-11B-Vision-Instruct-Turbo From $0.05/M tokens](https://modelslab.com/models/meta/meta-llama-Llama-3.2-11B-Vision-Instruct-Turbo) [#### Qwen/Qwen: Qwen3.5-122B-A10B qwen-qwen3.5-122b-a10b From $1.17/M tokens](https://modelslab.com/models/qwen/qwen-qwen3.5-122b-a10b) [#### OpenAI/OpenAI: GPT-4o (2024-08-06) openai-gpt-4o-2024-08-06 From $6.25/M tokens](https://modelslab.com/models/openai/openai-gpt-4o-2024-08-06) [#### Google/Google: Nano Banana 2.1 google-gemini-nano-banana-2.1 From $4.50/M tokens](https://modelslab.com/models/google/google-gemini-nano-banana-2.1) [#### Meta/Meta: Llama 3.2 1B Instruct meta-llama-llama-3.2-1b-instruct From $0.11/M tokens](https://modelslab.com/models/meta/meta-llama-llama-3.2-1b-instruct) [#### DeepSeek/DeepSeek R1 Distill Qwen 14B deepseek-ai-DeepSeek-R1-Distill-Qwen-14B From $1.60/M tokens](https://modelslab.com/models/deepseek/deepseek-ai-DeepSeek-R1-Distill-Qwen-14B) [#### Mistral AI/Mistral: Ministral 3 3B 2512 mistralai-ministral-3b-2512 From $0.10/M tokens](https://modelslab.com/models/mistralai/mistralai-ministral-3b-2512) [#### Tencent/Tencent: Hy3 tencent-hy3 From $0.33/M tokens](https://modelslab.com/models/tencent/tencent-hy3) [#### OpenAI/OpenAI: GPT-6.1 Sol Pro openai-gpt-6.1-sol-pro From $6.00/M tokens](https://modelslab.com/models/openai/openai-gpt-6.1-sol-pro) [#### Moonshot AI/MoonshotAI: Kimi K3 moonshotai-kimi-k3 From $6.09/M tokens](https://modelslab.com/models/moonshotai/moonshotai-kimi-k3) [#### Qwen/Qwen: Qwen3.8 Max (0902) qwen-qwen3.8-max-0902 From $4.00/M tokens](https://modelslab.com/models/qwen/qwen-qwen3.8-max-0902) [#### DeepSeek/DeepSeek: DeepSeek V4 Pro 0423 deepseek-deepseek-v4-pro From $1.43/M tokens](https://modelslab.com/models/deepseek/deepseek-deepseek-v4-pro) [#### Google/Google: Nano Banana 2 (Gemini 3.1 Flash Image) google-gemini-3.1-flash-image From $1.75/M tokens](https://modelslab.com/models/google/google-gemini-3.1-flash-image) [#### Mistral AI/Mistral (7B) Instruct v0.3 mistralai-Mistral-7B-Instruct-v0.3 From $0.20/M tokens](https://modelslab.com/models/mistralai/mistralai-Mistral-7B-Instruct-v0.3) [#### Tencent/Tencent: Hy3 preview tencent-hy3-preview From $0.39/M tokens](https://modelslab.com/models/tencent/tencent-hy3-preview) [#### Scaledown/ScaleDown: Summarize scaledown-summarize From $0.02/M tokens](https://modelslab.com/models/scaledown/scaledown-summarize) [#### Moonshot AI/MoonshotAI: Kimi K2 0711 moonshotai-kimi-k2 From $1.44/M tokens](https://modelslab.com/models/moonshotai/moonshotai-kimi-k2) About Meta: Muse Spark Open --- Muse Spark Open is a coding-optimized open-weight model. Trained specifically for agentic coding workflows, it delivers higher first-attempt accuracy, reliable tool calling, and deep codebase understanding across the repos developers... ### Technical Specifications Model IDmeta-muse-spark-open CategoryLLM Models TaskText Generation Price$2.75 per million tokens AddedOctober 15, 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 Meta: Muse Spark Open 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": "meta-muse-spark-open", "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 Meta: Muse Spark Open API costs $2.75 per million tokens. Plans start at $21/month, and open-source models are unlimited on the $149/month plan. [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 Meta](https://modelslab.com/models/open_router) [View Pricing](https://modelslab.com/pricing) Meta: Muse Spark Open FAQ --- ### What is Meta: Muse Spark Open? Muse Spark Open is a coding-optimized open-weight model. Trained specifically for agentic coding workflows, it delivers higher first-attempt accuracy, reliable tool calling, and deep codebase understanding across the repos developers... ### How do I use the Meta: Muse Spark Open API? You can integrate Meta: Muse Spark Open into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "meta-muse-spark-open" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does Meta: Muse Spark Open cost? Meta: Muse Spark Open costs $2.75 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 Meta: Muse Spark Open model ID? The model ID for Meta: Muse Spark Open is "meta-muse-spark-open". Use this ID in your API requests to specify this model. ### Do I need a paid plan to use Meta: Muse Spark Open? 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 - 2026-10-21*