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OpenAI Models

Innovation leader • GPT family

11 Models Latest: o3

o3

Released December 2024

LATEST

OpenAI's next-generation reasoning model with breakthrough capabilities

Parameters
~300 billion
Context
200,000 tokens
Key Features
Next-Gen Reasoning Advanced Problem Solving Research Grade
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o4-mini

Released December 2024

LATEST

OpenAI's efficient mini reasoning model with strong performance

Parameters
~20 billion
Context
128,000 tokens
Key Features
Efficient Reasoning Fast Response Cost Effective
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GPT-4.5

Released December 2024

LATEST

OpenAI's latest GPT model with enhanced capabilities and performance

Parameters
~1.8 trillion
Context
200,000 tokens
Key Features
Enhanced Performance Better Reasoning Improved Efficiency
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GPT-4.1

Released December 2024

LATEST

OpenAI's developer-focused model with extended context capabilities

Parameters
~1.8 trillion
Context
1,000,000 tokens
Key Features
1M Token Context Developer Focused Extended Memory
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o1

Released December 2024

OpenAI's full reasoning model with advanced problem-solving capabilities

Parameters
~200 billion
Context
200,000 tokens
Key Features
Advanced Reasoning Step-by-step Thinking Problem Solving
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o1-preview

Released September 2024

OpenAI's advanced reasoning model trained with reinforcement learning

Parameters
~175 billion
Context
128,000 tokens
Key Features
Chain of Thought Advanced Reasoning Problem Solving
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GPT-4o mini

Released July 2024

OpenAI's efficient small model with strong performance

Parameters
~8 billion
Context
128,000 tokens
Key Features
Cost Effective Fast Response Multimodal
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GPT-4o

Released May 2024

OpenAI's omni-modal flagship model with native multimodal capabilities

Parameters
~1.7 trillion
Context
128,000 tokens
Key Features
Native Multimodal Voice Input/Output Real-time Processing
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GPT-4 Turbo

Released April 2024

OpenAI's latest and most efficient GPT-4 variant

Parameters
~1.7 trillion
Context
128,000 tokens
Key Features
Multimodal Function Calling JSON Mode
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GPT-4

Released March 2023

OpenAI's breakthrough multimodal large language model

Parameters
~1.7 trillion
Context
8,192 tokens
Key Features
Multimodal Advanced Reasoning Code Generation
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GPT-3.5 Turbo

Released March 2023

OpenAI's optimized and cost-effective conversational model

Parameters
~175 billion
Context
16,385 tokens
Key Features
Chat Optimized Function Calling Fast Response
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