As part of OpenAI’s GPT-4 Turbo family, o3 delivers high-quality outputs at scale, supporting both chat and completion endpoints. It’s currently used in various commercial and developer-facing tools for streamlined and intelligent interactions.
- Product Builders & SaaS Startups: Add fast, reliable AI to apps and platforms for content, summarization, chat, and more.
- Developers & Engineers: Use o3 in APIs to power backend intelligence and conversational experiences.
- Marketing Teams: Automate personalized copywriting, A/B test messaging, and scale ad generation.
- Support & Ops Teams: Create bots or co-pilots to manage queries, tickets, and internal documentation.
- Data Analysts & Researchers: Summarize documents, generate insights, or analyze large text corpora.
- Educators & Students: Simplify concepts, answer questions, and generate custom learning content.
🛠️ How to Use o3?
- Step 1: Access via OpenAI Platform: Login to the OpenAI platform and choose the o3 model when calling the Chat or Completion API.
- Step 2: Choose Endpoint Type: Use either the /v1/chat/completions or /v1/completions endpoint depending on your interface style.
- Step 3: Provide Input Prompt: Feed a prompt in plain language, structured commands, or formatted queries.
- Step 4: Configure Parameters: Tune temperature, topp, maxtokens, etc., to shape the response’s tone and length.
- Step 5: Receive Fast, Accurate Output: The model returns coherent, context-aware responses ideal for a variety of production use cases.
- Step 6: Scale Seamlessly: With improved cost-efficiency and performance, o3 is built for both hobby projects and enterprise workloads.
- Advanced Language Understanding: Excellent at complex tasks such as summarization, reasoning, and code generation.
- Turbo Performance: Lower latency and faster output than GPT-4, making it ideal for real-time apps.
- Multilingual Mastery: Handles prompts and generates responses in multiple languages with fluency.
- Cost-Effective: Offers a better balance between quality and cost, especially compared to earlier GPT-4 variants.
- Structured Output Capabilities: Supports JSON-mode and function calling for integrating seamlessly with apps.
- Ecosystem-Friendly: Built to work smoothly within OpenAI tools, plugins, Assistants API, and more.
- Fast and Responsive: Minimal lag in completions—great for dynamic interfaces.
- Strong Reasoning Capabilities: Ideal for answering nuanced queries and following multi-step logic.
- Excellent Conversational Skills: Smooth, human-like dialog performance.
- Supports JSON and Function Calling: Structured outputs make it developer-friendly.
- Optimized for Versatility: From chatbots to internal tools—o3 delivers across the board.
- Still Premium-Priced: While cheaper than GPT-4, it’s more expensive than GPT-3.5 for high-volume use.
- Occasional Hallucinations: As with any LLM, factual errors can still occur in some contexts.
- Limited Public Info: OpenAI has not fully disclosed architectural details or training methods.
- Heavier for Light Use Cases: May be overkill for tasks that don't require deep reasoning or nuance.
- Fewer Fine-Tuning Options: Custom fine-tuning isn’t yet generally available for o3.
API
$10/$40
Free
$ 0.00
Standard voice mode
Real-time data from the web with search
Limited access to GPT-4o and o4-mini
Limited access to file uploads, advanced data analysis, and image generation
Use custom GPTs
Plus
$ 20.00
Extended limits on messaging, file uploads, advanced data analysis, and image generation
Standard and advanced voice mode
Access to deep research, multiple reasoning models (o4-mini, o4-mini-high, and o3), and a research preview of GPT-4.5
Create and use tasks, projects, and custom GPTs
Limited access to Sora video generation
Opportunities to test new features
Pro
$ 200.00
Unlimited access to all reasoning models and GPT-4o
Unlimited access to advanced voice
Extended access to deep research, which conducts multi-step online research for complex tasks
Access to research previews of GPT-4.5 and Operator
Access to o1 pro mode, which uses more compute for the best answers to the hardest questions
Extended access to Sora video generation
Access to a research preview of Codex agent
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Editorial Note
This page was researched and written by the ATB Editorial Team. Our team researches each AI tool by reviewing its official website, testing features, exploring real use cases, and considering user feedback. Every page is fact-checked and regularly updated to ensure the information stays accurate, neutral, and useful for our readers.
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