--- title: OpenAI: GPT 5.6 Terra API | Text Generation | ModelsLab description: Build with OpenAI: GPT 5.6 Terra API by Openai. Text generation, chat, code, and reasoning. Pay-per-use. Free tier. url: https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/openai/openai-gpt-5.6-terra.md canonical: https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/openai/openai-gpt-5.6-terra.md type: product component: Playground/LLM/Index generated_at: 2026-07-11T20:56:54.604743Z --- OpenAI: GPT-5.6 Terra --- [LLMs.txt](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-5.6-terra/llms.txt) [.md](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/openai/openai-gpt-5.6-terra.md) OpenAI: GPT-5.6 Terra --- 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 ### OpenAI: GPT-5.6 Terra openai openai-gpt-5.6-terra Copy model ID PricingInput $2.50 / 1M tokens Output $15.00 / 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-frontend-v2-927501783998.us-east4.run.app/models?feature=llmaster) [#### open\_router/Magnum v4 72B anthracite-org-magnum-v4-72b From $4.00/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/anthracite-org-magnum-v4-72b) [#### open\_router/OpenAI: GPT-4o-mini Search Preview openai-gpt-4o-mini-search-preview From $0.38/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-4o-mini-search-preview) [#### open\_router/Mistral: Ministral 3 8B 2512 mistralai-ministral-8b-2512 From $0.15/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/mistralai-ministral-8b-2512) [#### open\_router/Z.ai: GLM 5 z-ai-glm-5 From $1.26/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/z-ai-glm-5) [#### open\_router/Google: Gemma 4 31B google-gemma-4-31b-it From $0.23/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/google-gemma-4-31b-it) [#### open\_router/Qwen: Qwen3.5 397B A17B qwen-qwen3.5-397b-a17b From $1.42/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/qwen-qwen3.5-397b-a17b) [#### together\_ai/Kimi K2.6 Fp4 moonshotai-Kimi-K2.6 From $2.85/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai/moonshotai-Kimi-K2.6) [#### open\_router/Google: Gemini 3.1 Flash Lite Preview google-gemini-3.1-flash-lite-preview From $0.88/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/google-gemini-3.1-flash-lite-preview) [#### open\_router/Qwen: Qwen3.7 Max qwen-qwen3.7-max From $2.50/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/qwen-qwen3.7-max) [#### open\_router/OpenAI: GPT-4o (2024-08-06) openai-gpt-4o-2024-08-06 From $6.25/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-4o-2024-08-06) [#### open\_router/Anthropic Claude Haiku Latest anthropic-claude-haiku-latest From $3.00/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/anthropic-claude-haiku-latest) [#### open\_router/OpenAI: GPT-4o openai-gpt-4o From $6.25/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-4o) [#### open\_router/MiniMax: MiniMax M1 minimax-minimax-m1 From $1.30/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/minimax-minimax-m1) [#### open\_router/Qwen: Qwen3.6 Max Preview qwen-qwen3.6-max-preview From $3.64/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/qwen-qwen3.6-max-preview) [#### open\_router/OpenAI: GPT-5.6 Sol Pro openai-gpt-5.6-sol-pro From $17.50/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-5.6-sol-pro) [#### open\_router/xAI: Grok Latest x-ai-grok-latest From $4.00/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/x-ai-grok-latest) [#### open\_router/OpenAI: GPT-3.5 Turbo 16k openai-gpt-3.5-turbo-16k From $3.50/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-3.5-turbo-16k) [#### arcee\_ai/Arcee AI Coder-Large arcee-ai-coder-large From $0.65/M tokens](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/arcee_ai/arcee-ai-coder-large) Open Source Alternatives --- Explore open-source models that offer similar capabilities with full transparency and flexibility [View all open source models](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models?feature=llm&provider=open-source-models) [MU Popular](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/uncensored-chat)[ModelsLab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab) [Modelslab: Uncensored Chat Open Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/uncensored-chat) About OpenAI: GPT-5.6 Terra --- GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic... ### Technical Specifications Model IDopenai-gpt-5.6-terra CategoryLLM Models TaskText Generation Price$8.75 per million tokens AddedJuly 9, 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 OpenAI: GPT-5.6 Terra 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": "openai-gpt-5.6-terra", "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 OpenAI: GPT-5.6 Terra API costs $8.750000 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 Openai](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [View Pricing](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) OpenAI: GPT-5.6 Terra FAQ --- ### What is OpenAI: GPT-5.6 Terra? GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic... ### How do I use the OpenAI: GPT-5.6 Terra API? You can integrate OpenAI: GPT-5.6 Terra into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "openai-gpt-5.6-terra" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does OpenAI: GPT-5.6 Terra cost? OpenAI: GPT-5.6 Terra costs $8.750000 per million tokens. ModelsLab uses pay-per-use pricing with no minimum commitments. A free tier is available to get started. ### What is the OpenAI: GPT-5.6 Terra model ID? The model ID for OpenAI: GPT-5.6 Terra is "openai-gpt-5.6-terra". Use this ID in your API requests to specify this model. ### Does OpenAI: GPT-5.6 Terra have a free tier? Yes, ModelsLab offers a free tier that lets you try OpenAI: GPT-5.6 Terra 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 - 2026-07-12*