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
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