OpenAI releases updates every day, making it overwhelming. Can you really distinguish between o4 and 4o? This article will help you understand all of OpenAI's models.

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Hello friends

Alright, here is the reorganized table:

Model Name	Type	Context Length (token)	Approximate Word Count	Main Functions Interpreted by Jackywine	Jackywine's Vivid Interpretation
o1	Inference Model	8k	About 6000 words	Enhanced reasoning and complex tasks	The brain is turbocharged, able to calculate complex ideas in one breath, like a race car driver speeding to the finish line.
o3	Inference Model	8k	About 6000 words	Multimodal reasoning and complex calculations	Like a chef cooking while listening to music, also baking a cake, capable of handling text, images, audio, and video simultaneously.
o4-mini	Small Inference Model	8k	About 6000 words	Low-cost reasoning and basic visual analysis	The price of a second-class seat on a high-speed train offers a free experience of business class.
gpt-3.5-turbo	Chat Optimization Model	4k	About 3000 words	Language dialogue and writing assistance	Like an intelligent secretary in your pocket, ready to chat gossip or help you write reports.
gpt-3.5-turbo-16k	Chat Optimization Model	16k	About 12000 words	Long context dialogue	Like carrying an encyclopedia in your backpack, able to flip through it in one chat.
gpt-4	Flagship Language Model	8k / 32k	8k: About 6000 words; 32k: About 24000 words	Complex reasoning and professional writing	Like inviting an industry expert to debate, also capable of writing high-end white papers.
gpt-4-32k	Flagship Language Model	32k	About 24000 words	Understanding ultra-long texts	Like using a microscope to view a city map, able to read every detail clearly.
gpt-4.1	Code Optimization Model	8k	About 6000 words	Coding and instruction following	Like a little robot assistant, following orders to help you write code.
gpt-4.1-mini	Mini Code Model	4k	About 3000 words	Small coding tasks	Like using a mini toolbox to screw in screws, easily handling small tasks.
gpt-4.1-nano	Nano Code Model	1k	About 800 words	Lightweight coding tasks	Like a flashlight in the palm of your hand, lightweight yet able to illuminate key code.
gpt-4o	Multimodal Model	8k	About 6000 words	Text and image mixed understanding	Like being both a screenwriter and a director, able to quickly handle lines and visuals.
gpt-4o-mini	Mini Multimodal Model	4k	About 3000 words	Basic text and image mixing	Like an introductory directing class, learning the basic routines of combining text and images.
text-embedding-ada-002	Embedding Model	—	—	Text vectorization	Like compressing an entire novel into a set of numbers for quick machine retrieval.
whisper-1	Speech Recognition Model	—	—	Speech transcription and translation	Like carrying a translator, able to convert speech into text and switch languages instantly.
dalle-3	Image Generation Model	—	—	High-quality image generation	It's garbage, not even a dog would use it.

chatGPT‑3.5#

Release Time: Launched at the end of 2022, an upgraded version of the GPT‑3 series
Performance: Smooth dialogue, responses close to human-like, but occasionally makes mistakes with complex reasoning or long documents
Context Length: About 4k tokens, suitable for short dialogues and simple Q&A
Usage: Default version for free users and API basic tier
Suitable Scenarios: Daily Q&A, writing assistance, simple programming examples

Jackywine's Review: chatGPT‑3.5 is like a good helper in daily conversations, focusing on basic Q&A and writing assistance, everything is quite good, just a bit outdated!

GPT‑4 (already gone, let us mourn for it)#

Release Time: Released in March 2023, with significant improvements in computing power and parameter count
Performance: Stronger reasoning ability, better performance in creative writing and professional Q&A
Context Length: Available in two options: 8k tokens (standard version) and 32k tokens (high-end version)
Usage: ChatGPT Plus users can switch, API pricing is slightly higher
Suitable Scenarios: Understanding long documents, multi-turn complex dialogues, professional report writing

Jackywine's Review: GPT‑4 is like an upgraded expert consultant, able to handle complex problems and lengthy content, everything is quite good, but it has already been taken offline.

GPT‑4 Turbo#

Release Time: Launched in the second half of 2023, optimized for speed and cost
Performance: Slightly inferior to standard GPT‑4, but can replace it in most scenarios
Context Length: 128k tokens, the longest context support on the market
Usage: Default engine for ChatGPT Plus and Enterprise, API pricing is lower
Suitable Scenarios: Processing ultra-long documents, code review, or multi-user collaboration scenarios

Jackywine's Review: GPT‑4 Turbo is like a high-speed engine, fast and cost-effective, suitable for handling large files, the user experience is not much different.

GPT‑4o (can see images, write text, and draw)#

Release Time: Launched in mid-2024, supports text + image input
Performance: Can interpret image content and generate related text, supports simple editing suggestions
Usage: Ports for ChatGPT Plus and Enterprise, API is still in testing phase
Suitable Scenarios: Content creation with text and images, product design reviews, visual Q&A

Jackywine's Review: GPT‑4o is like an intelligent partner with visual perception, able to see images and recognize text simultaneously, the last time that Ghibli style became popular was because of this thing.

ChatGPT Enterprise Version (generally not used by friends)#

Main Advantages: Data isolation and security compliance, exclusive guarantees, large-scale deployment support
Pricing Model: Charged by seat or API call volume
Additional Features: Internal knowledge base sharing, customized instructions, fine-grained permission management
Suitable Scenarios: Knowledge management for medium to large enterprises, customer service robots, vertical industry solutions

Jackywine's Review: The enterprise version is like a private assistant equipped with a dedicated team, secure and reliable, with customized functions.

How to Choose?#

Daily learning and light writing: chatGPT‑3.5 is sufficient
Professional reports, long documents, and complex reasoning: The standard or high-end version of GPT‑4 is the best choice
Large document interpretation: Prioritize GPT‑4 Turbo
Drawing Ghibli: Try GPT‑4o multimodal
Enterprise-level security and customization needs: Consider evaluating ChatGPT Enterprise