--- title: OpenAI: GPT 4o (extended) API | Text Generation | ModelsLab description: Build with OpenAI: GPT 4o (extended) API by Openai. Text generation, chat, code, and reasoning. Pay-per-use. Free tier. url: https://modelslab.com/models/openai/openai-gpt-4o-extended.md canonical: https://modelslab.com/models/openai/openai-gpt-4o-extended.md type: product component: Playground/LLM/Index generated_at: 2026-04-15T00:19:47.009603Z --- OpenAI: GPT-4o (extended) --- [LLMs.txt](https://modelslab.com/models/open_router/openai-gpt-4o-extended/llms.txt) [.md](https://modelslab.com/models/openai/openai-gpt-4o-extended.md) openai-gpt-4o-extended openai Closed Source Model $12.000000 / call OpenAI: GPT-4o (extended) --- 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-4o (extended) openai openai-gpt-4o-extended Copy model ID PricingInput $6.00 / 1M tokens Output $18.00 / 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) [QQ](https://modelslab.com/models/open_router/qwen-qwen-plus-2025-07-28)[Open Router](https://modelslab.com/models/open_router) [Qwen: Qwen Plus 0728 Closed Source Model](https://modelslab.com/models/open_router/qwen-qwen-plus-2025-07-28) [Q4](https://modelslab.com/models/together_ai/Qwen-Qwen3-4B-Instruct-2507)[Together AI](https://modelslab.com/models/together_ai) [Qwen3 4B Instruct 2507 Closed Source Model](https://modelslab.com/models/together_ai/Qwen-Qwen3-4B-Instruct-2507) [DR](https://modelslab.com/models/deepseek/deepseek-ai-DeepSeek-R1-Distill-Qwen-1.5B)[ModelsLab](https://modelslab.com/models/deepseek) [DeepSeek R1 Distill Qwen 1.5B Closed Source Model](https://modelslab.com/models/deepseek/deepseek-ai-DeepSeek-R1-Distill-Qwen-1.5B) [N3](https://modelslab.com/models/together_ai/nim-nvidia-llama-3.1-nemotron-70b-instruct)[Together AI](https://modelslab.com/models/together_ai) [nim/nvidia/llama-3.1-nemotron-70b-instruct Closed Source Model](https://modelslab.com/models/together_ai/nim-nvidia-llama-3.1-nemotron-70b-instruct) [G3](https://modelslab.com/models/together_ai/google-gemma-3-1b-it)[Together AI](https://modelslab.com/models/together_ai) [Gemma 3 1b it Closed Source Model](https://modelslab.com/models/together_ai/google-gemma-3-1b-it) [OG](https://modelslab.com/models/open_router/openai-gpt-5.4-pro)[Open Router](https://modelslab.com/models/open_router) [OpenAI: GPT-5.4 Pro Closed Source Model](https://modelslab.com/models/open_router/openai-gpt-5.4-pro) [QQ](https://modelslab.com/models/alibaba_cloud/qwen-qwen3.5-122b-a10b)[Alibaba](https://modelslab.com/models/alibaba_cloud) [Qwen: Qwen3.5-122B-A10B Closed Source Model](https://modelslab.com/models/alibaba_cloud/qwen-qwen3.5-122b-a10b) [DD](https://modelslab.com/models/open_router/deepseek-deepseek-chat-v3.1)[Open Router](https://modelslab.com/models/open_router) [DeepSeek: DeepSeek V3.1 Closed Source Model](https://modelslab.com/models/open_router/deepseek-deepseek-chat-v3.1) [DR](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-R1-Distill-Qwen-14B)[Together AI](https://modelslab.com/models/together_ai) [DeepSeek R1 Distill Qwen 14B Closed Source Model](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-R1-Distill-Qwen-14B) [QQ](https://modelslab.com/models/open_router/qwen-qwen3-coder-next)[Open Router](https://modelslab.com/models/open_router) [Qwen: Qwen3 Coder Next Closed Source Model](https://modelslab.com/models/open_router/qwen-qwen3-coder-next) [QC](https://modelslab.com/models/together_ai/Qwen-Qwen3-Coder-480B-A35B-Instruct-FP8)[Together AI](https://modelslab.com/models/together_ai) [Qwen3 Coder 480B A35B Instruct Fp8 Closed Source Model](https://modelslab.com/models/together_ai/Qwen-Qwen3-Coder-480B-A35B-Instruct-FP8) [AC](https://modelslab.com/models/open_router/anthropic-claude-opus-4.1)[Open Router](https://modelslab.com/models/open_router) [Anthropic: Claude Opus 4.1 Closed Source Model](https://modelslab.com/models/open_router/anthropic-claude-opus-4.1) [AN](https://modelslab.com/models/open_router/amazon-nova-2-lite-v1)[Open Router](https://modelslab.com/models/open_router) [Amazon: Nova 2 Lite Closed Source Model](https://modelslab.com/models/open_router/amazon-nova-2-lite-v1) [Q3](https://modelslab.com/models/together_ai/Qwen-Qwen3-30B-A3B-Base)[Together AI](https://modelslab.com/models/together_ai) [Qwen3 30B A3b Base Closed Source Model](https://modelslab.com/models/together_ai/Qwen-Qwen3-30B-A3B-Base) [XM](https://modelslab.com/models/open_router/xiaomi-mimo-v2-pro)[Open Router](https://modelslab.com/models/open_router) [Xiaomi: MiMo-V2-Pro Closed Source Model](https://modelslab.com/models/open_router/xiaomi-mimo-v2-pro) [Q3](https://modelslab.com/models/together_ai/Qwen-Qwen3-30B-A3B)[Together AI](https://modelslab.com/models/together_ai) [Qwen3 30B A3b Closed Source Model](https://modelslab.com/models/together_ai/Qwen-Qwen3-30B-A3B) [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) [QQ](https://modelslab.com/models/open_router/qwen-qwen3-vl-32b-instruct)[Open Router](https://modelslab.com/models/open_router) [Qwen: Qwen3 VL 32B Instruct Closed Source Model](https://modelslab.com/models/open_router/qwen-qwen3-vl-32b-instruct) About OpenAI: GPT-4o (Extended) --- GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of \[GPT-4 Turbo\](/models/openai/gpt-4-turbo) while being twice as... ### Technical Specifications Model IDopenai-gpt-4o-extendedCategoryLLM ModelsTaskText GenerationPrice$12.000000 per million tokensAddedFebruary 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 OpenAI: GPT-4o (Extended) 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": "openai-gpt-4o-extended", "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/openai/openai-gpt-4o-extended/api) for SDKs, code examples in Python, JavaScript, and more. ### Pricing OpenAI: GPT-4o (Extended) API costs $12.000000 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 Openai](https://modelslab.com/models/open_router) [View Pricing](https://modelslab.com/pricing) OpenAI: GPT-4o (Extended) FAQ --- ### What is OpenAI: GPT-4o (Extended)? GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of \[GPT-4 Turbo\](/models/openai/gpt-4-turbo) while being twice as... ### How do I use the OpenAI: GPT-4o (Extended) API? You can integrate OpenAI: GPT-4o (Extended) into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "openai-gpt-4o-extended" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does OpenAI: GPT-4o (Extended) cost? OpenAI: GPT-4o (Extended) costs $12.000000 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-4o (Extended) model ID? The model ID for OpenAI: GPT-4o (Extended) is "openai-gpt-4o-extended". Use this ID in your API requests to specify this model. ### Does OpenAI: GPT-4o (Extended) have a free tier? Yes, ModelsLab offers a free tier that lets you try OpenAI: GPT-4o (Extended) 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*