--- title: OpenAI: GPT 6.1 Sol API | Text Generation | ModelsLab description: Build with OpenAI: GPT 6.1 Sol API by OpenAI. Text generation, chat, code, and reasoning. Plans from $21/month. url: https://modelslab.com/models/openai/openai-gpt-6.1-sol.md canonical: https://modelslab.com/models/openai/openai-gpt-6.1-sol type: product component: Playground/LLM/Index generated_at: 2026-09-30T08:17:03.301839Z --- OpenAI: GPT-6.1 Sol --- [LLMs.txt](https://modelslab.com/models/openai/openai-gpt-6.1-sol/llms.txt) [.md](https://modelslab.com/models/openai/openai-gpt-6.1-sol.md) OpenAI: GPT-6.1 Sol --- 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 ### OpenAI: GPT-6.1 Sol openai openai-gpt-6.1-sol Copy model ID PricingInput $2.00 / 1M tokens Output $10.00 / 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 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) [#### Xiaomi/Xiaomi: MiMo-V2.5-Pro xiaomi-mimo-v2.5-pro From $0.65/M tokens](https://modelslab.com/models/xiaomi/xiaomi-mimo-v2.5-pro) [#### Z.ai/Z.ai: GLM 5.3 Prime z-ai-glm-5.3-prime From $5.80/M tokens](https://modelslab.com/models/z-ai/z-ai-glm-5.3-prime) [#### DeepSeek/DeepSeek: DeepSeek V4.1 Flash deepseek-deepseek-v4.1-flash From $0.75/M tokens](https://modelslab.com/models/deepseek/deepseek-deepseek-v4.1-flash) [#### Google/Google: Gemini 2.5 Flash Lite google-gemini-2.5-flash-lite From $0.25/M tokens](https://modelslab.com/models/google/google-gemini-2.5-flash-lite) [#### OpenAI/OpenAI: GPT-4 openai-gpt-4 From $45.00/M tokens](https://modelslab.com/models/openai/openai-gpt-4) [#### Typesafe/TypeSafe: Jev Router typesafe-jev-router Free](https://modelslab.com/models/typesafe/typesafe-jev-router) [#### Fireworks/Fireworks: Ember-1 fireworks-ember-1 From $9.00/M tokens](https://modelslab.com/models/fireworks/fireworks-ember-1) [#### Sao10K/Sao10K: Llama 3.1 Euryale 70B v2.2 sao10k-l3.1-euryale-70b From $0.85/M tokens](https://modelslab.com/models/sao10k/sao10k-l3.1-euryale-70b) [#### DeepSeek/DeepSeek-R1 deepseek-ai-DeepSeek-R1-Distill-Llama-70B From $2.00/M tokens](https://modelslab.com/models/deepseek/deepseek-ai-DeepSeek-R1-Distill-Llama-70B) [#### MiniMax/MiniMax: MiniMax M3 minimax-minimax-m3 From $0.75/M tokens](https://modelslab.com/models/minimax/minimax-minimax-m3) [#### Mistral AI/Mistral Large mistralai-mistral-large From $4.00/M tokens](https://modelslab.com/models/mistralai/mistralai-mistral-large) [#### Qwen/Qwen2.5 72B Instruct Turbo Qwen-Qwen2.5-72B-Instruct-Turbo From $1.20/M tokens](https://modelslab.com/models/qwen/Qwen-Qwen2.5-72B-Instruct-Turbo) [#### Qwen/Qwen: Qwen3 14B qwen-qwen3-14b From $0.18/M tokens](https://modelslab.com/models/qwen/qwen-qwen3-14b) [#### Qwen/Qwen: Qwen3 8B qwen-qwen3-8b From $0.29/M tokens](https://modelslab.com/models/qwen/qwen-qwen3-8b) [#### Qwen/Qwen: Qwen3 Next 80B A3B Instruct qwen-qwen3-next-80b-a3b-instruct From $0.60/M tokens](https://modelslab.com/models/qwen/qwen-qwen3-next-80b-a3b-instruct) [#### Qwen/Qwen: Qwen3.6 27B qwen-qwen3.6-27b From $1.76/M tokens](https://modelslab.com/models/qwen/qwen-qwen3.6-27b) [#### Google/Google: Nano Banana (Gemini 2.5 Flash Image) google-gemini-2.5-flash-image From $1.40/M tokens](https://modelslab.com/models/google/google-gemini-2.5-flash-image) [#### Qwen/Qwen: Qwen3 32B qwen-qwen3-32b From $0.18/M tokens](https://modelslab.com/models/qwen/qwen-qwen3-32b) About OpenAI: GPT-6.1 Sol --- GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. It is suited for agentic coding, computer use, document-heavy professional... ### Technical Specifications Model IDopenai-gpt-6.1-sol CategoryLLM Models TaskText Generation Price$6 per million tokens AddedSeptember 29, 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-6.1 Sol 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-6.1-sol", "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-6.1 Sol API costs $6 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 OpenAI](https://modelslab.com/models/open_router) [View Pricing](https://modelslab.com/pricing) OpenAI: GPT-6.1 Sol FAQ --- ### What is OpenAI: GPT-6.1 Sol? GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. It is suited for agentic coding, computer use, document-heavy professional... ### How do I use the OpenAI: GPT-6.1 Sol API? You can integrate OpenAI: GPT-6.1 Sol into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "openai-gpt-6.1-sol" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does OpenAI: GPT-6.1 Sol cost? OpenAI: GPT-6.1 Sol costs $6 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 OpenAI: GPT-6.1 Sol model ID? The model ID for OpenAI: GPT-6.1 Sol is "openai-gpt-6.1-sol". Use this ID in your API requests to specify this model. ### Do I need a paid plan to use OpenAI: GPT-6.1 Sol? 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 - 2026-09-30*