ChatGPT and OpenAI's AI Models: Features, Use Cases, and API Pricing
In this blog, we will explore the features, use cases, and API pricing for each OpenAI model to help you determine which AI tool best suits your needs.
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nikunj irani - energy2karma
2/12/20253 min read


Introduction
Artificial Intelligence has revolutionized the way businesses and individuals interact with technology. OpenAI offers multiple AI models, including ChatGPT, DALL·E, Whisper, and Codex, each serving different purposes, from text generation to image creation, speech-to-text conversion, and coding assistance.
1. ChatGPT Models (GPT-3.5, GPT-4, and GPT-4 Turbo)
🔹 ChatGPT-3.5
✅ Overview
ChatGPT-3.5 is a fast and cost-effective model designed for general-purpose text generation. It performs well for conversational tasks but lacks some of the deeper reasoning abilities of GPT-4.
🔹 Use Cases
Customer Support Bots – Automate responses to FAQs.
Content Creation – Generate blogs, articles, product descriptions, and emails.
Basic Coding Assistance – Provide quick code snippets and explanations.
SEO and Digital Marketing – Create optimized content for search engines.
💰 API Pricing
Input: $0.0015 per 1,000 tokens
Output: $0.002 per 1,000 tokens
(1,000 tokens ≈ 750 words of input or output)
🔹 ChatGPT-4
✅ Overview
ChatGPT-4 is a more advanced model with better reasoning, factual accuracy, and nuanced responses. It is ideal for complex tasks requiring higher levels of intelligence.
🔹 Use Cases
Advanced Research Assistance – Summarize academic papers and generate reports.
Legal & Business Document Drafting – Write contracts, legal notes, and business plans.
AI-powered Virtual Assistants – Provide intelligent responses with in-depth analysis.
Complex Coding Help – Debug and explain programming logic in detail.
💰 API Pricing
Input: $0.03 per 1,000 tokens
Output: $0.06 per 1,000 tokens
🔹 ChatGPT-4 Turbo
✅ Overview
GPT-4 Turbo is a faster and cheaper version of GPT-4, optimized for real-time applications with similar accuracy and efficiency.
🔹 Use Cases
Real-time AI Chatbots – Deploy interactive customer service AI.
AI-Powered Productivity Tools – Automate writing, summarization, and scheduling tasks.
Business Analytics & Insights – Process large datasets and generate insights.
Social Media Content Creation – Generate posts, captions, and ad copies.
💰 API Pricing
Input: $0.01 per 1,000 tokens
Output: $0.03 per 1,000 tokens
2. DALL·E (AI Image Generation)
✅ Overview
DALL·E is OpenAI’s AI-powered image generation model that creates images from text prompts.
🔹 Use Cases
Graphic Design & Branding – Create unique logos, posters, and advertisements.
Marketing & Social Media – Generate high-quality visuals for campaigns.
E-commerce & Product Mockups – Visualize product prototypes before production.
Gaming & Animation – Conceptualize character designs and backgrounds.
💰 API Pricing
Cost: Varies based on image resolution.
1024×1024 px: $0.020 per image
1792×1024 px or 1024×1792 px: $0.040 per image
3. Whisper (AI Speech-to-Text)
✅ Overview
Whisper is OpenAI’s speech-to-text model, capable of transcribing audio into text with high accuracy.
🔹 Use Cases
Podcast & Video Transcription – Convert spoken content into text for blogs or subtitles.
Meeting & Interview Notes – Automatically transcribe discussions for reference.
Multilingual Subtitles – Generate subtitles for videos in different languages.
Voice Command Systems – Enable AI assistants to recognize spoken commands.
💰 API Pricing
$0.006 per minute of audio processed
4. Codex (AI Coding Assistant)
✅ Overview
Codex is OpenAI’s model designed for code generation and explanation.
🔹 Use Cases
Automated Code Generation – Write Python, JavaScript, and other programming languages.
Bug Fixing & Debugging – Identify errors and suggest fixes.
API Documentation Assistance – Generate explanations for API functions.
Programming Education – Help beginners learn how to code with AI tutoring.
💰 API Pricing
Codex has been integrated into ChatGPT, and GPT-4 Turbo now handles coding tasks. So, use ChatGPT-4 Turbo for coding help.
5. OpenAI API for Developers
Developers can integrate OpenAI’s models into their applications through APIs. Here’s a quick comparison:
Final Thoughts: Which OpenAI Model Should You Use?
Whether you need an AI chatbot, AI-generated images, or speech-to-text conversion, OpenAI offers cost-effective and powerful solutions.
Need Help Implementing AI in Your Business?
If you’re looking to integrate OpenAI models into your applications, automate workflows, or run AI-driven campaigns, feel free to reach out to us.
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