



const { OpenAI } = require('openai');
const api = new OpenAI({
baseURL: 'https://api.ai.cc/v1',
apiKey: '',
});
const main = async () => {
const result = await api.chat.completions.create({
model: 'openai/gpt-5-1',
messages: [
{
role: 'system',
content: 'You are an AI assistant who knows everything.',
},
{
role: 'user',
content: 'Tell me, why is the sky blue?'
}
],
});
const message = result.choices[0].message.content;
console.log(`Assistant: ${message}`);
};
main();
import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.ai.cc/v1",
api_key="",
)
response = client.chat.completions.create(
model="openai/gpt-5-1",
messages=[
{
"role": "system",
"content": "You are an AI assistant who knows everything.",
},
{
"role": "user",
"content": "Tell me, why is the sky blue?"
},
],
)
message = response.choices[0].message.content
print(f"Assistant: {message}")
-
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Product Detail
GPT-5.1 API: An Advanced AI for Next-Generation Applications
GPT-5.1 represents a significant leap forward in OpenAI's GPT-5 series. This advanced large language model (LLM) sets a new standard for conversational quality, adaptive reasoning, and precise instruction following. Engineered for intelligence and user-friendliness, GPT-5.1 is ideal for a broad spectrum of practical AI applications, delivering enhanced performance and versatility.
🔎 Technical Specifications
- Architecture: Transformer-based neural network, building upon the robust GPT-5 foundations. It features presumed increases in parameter count and optimized layer efficiency for superior performance.
- Context Window: 📚 Supports exceptionally long context inputs, up to 128K tokens, which significantly enhances its capabilities for long-form reasoning and comprehensive document handling.
- Inference: Optimized for distributed execution across GPU clusters. GPT-5.1 leverages adaptive reasoning via a meta-controller that dynamically assesses prompt complexity to allocate computational resources efficiently.
- Safety & Robustness: 🛡️ Incorporates improved safeguard measures against harassment, hate speech, and ensures responsible AI usage through enhanced image input evaluations.
💪 Performance Benchmarks
GPT-5.1 showcases remarkable performance gains, notably:
- Outperforms GPT-5 on critical math and coding benchmarks, including AIME 2025 and Codeforces.
- Demonstrates significant improvements in instruction adherence, response clarity, and overall conversational tone.

💡 Key Features of GPT-5.1
- Adaptive Reasoning: Dynamically adjusts its reasoning depth based on the complexity of the query, striking an optimal balance between processing speed and answer quality.
- Improved Instruction Following: Delivers more reliable, clearer, and accurate responses that align precisely with user requests.
- Personalization: 👤 Users can customize ChatGPT’s tone and style from options like Default, Friendly, Efficient, Professional, Candid, Quirky, Nerdy, and Cynical, with further fine-tuning capabilities planned.
- Multimodal Support: 📷 Enhanced handling of diverse data types, including images, complex documents, and more, for integrated workflows.
- Long-Form Document Analysis: Supports extensive document contexts, enabling deep analysis, summarization, and comprehension of lengthy texts.
💸 GPT-5.1 API Pricing
$1.3125 per 1M tokens
$0.13125 per 1M tokens
$10.50 per 1M tokens
📜 Versatile Use Cases
- Everyday Chat & Assistance: 💬 Engage in quick, natural conversational interactions using GPT-5.1 Instant for immediate assistance.
- Research & Data Analysis: Tackle complex problem-solving, obtain coding help, and perform detailed textual and scientific analysis.
- Content Creation: ✍️ Efficiently draft, summarize, and brainstorm ideas for marketing materials, presentations, or technical writing.
- Multimodal Applications: Seamlessly handle images, documents, and structured data for integrated and sophisticated workflows.
- Personalized AI Experience: Leverage custom tone and style settings to meet diverse user and organizational needs, ensuring a tailored AI interaction.
💻 Code Sample
For more detailed API integration, refer to the official documentation:
GPT-5.1 API Reference Documentation
📋 Comparison with Other Models
vs GPT-5: GPT-5.1 significantly enhances conversational warmth, adaptive reasoning, and instruction following compared to GPT-5. It offers two specialized variants: Instant for rapid, natural chat and Thinking for deep reasoning, while GPT-5 employs a single, balanced model approach.
vs GPT-5 Pro: While GPT-5 Pro remains the top-tier variant for ultra-deep reasoning tasks, GPT-5.1 democratizes many of these advanced capabilities, making them accessible in a consumer-friendly model. It delivers near-top performance with greater usability for everyday tasks.
vs Claude Sonnet 4.5: Claude Sonnet 4.5 excels in coding reliability and exhibits lower hallucination rates, making it highly suitable for safety-critical and detailed technical applications. In contrast, GPT-5.1 surpasses Claude in conversational warmth and adaptive reasoning flexibility, providing faster responses for daily use and more personalized interactions.
vs GPT-4: GPT-5.1 vastly expands context window sizes (up to 128K-196K tokens) compared to GPT-4's approximately 32K tokens, facilitating superior handling of long documents and extended conversations. GPT-5.1's personalized tone options and enhanced conversational warmth represent significant advancements over GPT-4's more neutral style.
Frequently Asked Questions (FAQ)
✓ What is the primary advantage of GPT-5.1 over GPT-5?
GPT-5.1 offers significant improvements in conversational warmth, adaptive reasoning, and instruction following, along with specialized variants (Instant for chat, Thinking for deep reasoning) that GPT-5 lacks.
✓ How does GPT-5.1 handle long documents?
It supports a very long context window, up to 128K tokens, enabling comprehensive analysis and summarization of extensive documents and long conversations.
✓ Can I customize the AI's personality in GPT-5.1?
Yes, GPT-5.1 includes personalization features allowing users to tailor ChatGPT’s tone and style with various preset options like Friendly, Professional, or Quirky, with more fine-tuning capabilities anticipated.
✓ What are the key pricing tiers for the GPT-5.1 API?
Pricing is structured per 1 million tokens, with input tokens at $1.3125, cached input at $0.13125, and output tokens at $10.50.
✓ Is GPT-5.1 suitable for multimodal applications?
Absolutely. GPT-5.1 features enhanced multimodal support, allowing it to effectively handle and integrate various data types, including images and complex documents, for diverse applications.
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