The new ChatGPT model and those available today: evolution, new features, and details
- Graziano Stefanelli
- 2 days ago
- 3 min read
Everyone is wondering what the next ChatGPT model will be, and—above all—what it will be able to do. After the rapid progress of the past twelve months—from the release of GPT‑4o to the “o3” family—the atmosphere is full of expectations: people are talking about deeper reasoning, huge context windows, and even tighter integration between voice, images, and advanced tools.
The models you can already use
Model | Release date | Where to find it | Main strength |
OpenAI o3-pro | June 10, 2025 | Pro subscribers | Longer, more reliable reasoning; ideal for complex problems |
GPT‑4.1 | May 14, 2025 (API: Apr 14) | Plus / Team / Pro | Coding and instruction-following specialist; faster than GPT-4o |
GPT‑4.1 mini | May 14, 2025 | Free (fallback) + paid plans | Small, fast, surprisingly capable; replaces 4o-mini |
GPT‑4.5 (research preview) | Feb 27, 2025 | Pro subscribers | Wider knowledge, improved "EQ," fewer hallucinations |
OpenAI o3 | Apr 16, 2025 | Plus / Team / Pro | Best multimodal reasoning model; excels in STEM and visual tasks |
OpenAI o4-mini | Apr 16, 2025 | Plus / Team / Pro | Light version of o3, lower cost and latency with solid accuracy |
GPT‑4o | May 13, 2024 (constantly updated) | Free and paid default | "Omni" multimodal (text-image-audio), almost real-time replies |
Summary by tier: Free: GPT‑4o → GPT‑4.1 mini (when you run out of credits) Plus / Team: 4o, 4.1, 4.1 mini, o3, o4-mini Pro: all of the above + 4.5 preview + o3-pro Enterprise / Edu: similar to Pro, but rollout is staggered
GPT‑5: when will it launch, and what can we expect?
Rumors about GPT‑5 have intensified after a leaked file called gpt‑5‑reasoning‑alpha‑2025‑07‑13; several researchers also found references to the new model in OpenAI’s internal bio-safety benchmarks. An engineer from the team, Xikun Zhang, even confirmed on social media that “GPT‑5 is coming.” There is still no official release date, but the likely window is “within the next few weeks,” and the debut should begin with premium plans, as happened with o3-pro.
Leaks point to:
A stable one-million-token context window (not just in preview mode)
Native chain-of-thought reasoning to reduce hallucinations
Unified multimodal system (voice, image, text) with no separate pipelines
Improved persistent memory and direct integration with “Agents” able to take actions online
Deep dive into current models
OpenAI o3-pro
The “patient” version of o3: it creates longer reasoning chains before replying, making it ideal for advanced mathematics, strategic consulting, or complex code debugging. It may take a few more seconds to reply, but delivers much more robust answers.
GPT‑4.1 and 4.1 mini
Built for developers: code completion, refactoring, step-by-step explanations. 4.1 mini sacrifices some power for speed; it’s also the fallback free model when you exceed the GPT‑4o limits. Both support a 1 million token context and follow instructions very literally.
GPT‑4.5 (preview)
The last stage in the “unsupervised-learning” line. It has a knowledge database updated to November 2024, offers a more empathetic tone, and hallucinates about 20% less than GPT‑4o in internal tests. It will be removed from the API on July 14, 2025, but will remain in ChatGPT until 5.0 arrives.
OpenAI o3 and o4-mini
o3 can reason with images: you can upload diagrams, screenshots, or photos of notes and ask for analysis.
o4-mini is designed for high volume: low cost, low latency, but still good scores in math and data science benchmarks.
GPT‑4o
The “old” flagship remains the all-purpose choice: free, fast (300 ms in Voice Mode), and able to handle text, audio, and images in the same prompt. Great for live translations and customer service interactions.
How to choose the right model
Need | Recommended model | Quick reason |
Complex debugging / advanced math | o3-pro | Maximum reliability in reasoning |
Everyday coding | GPT‑4.1 | Speed + programming accuracy |
Heavy use, limited budget | o4-mini | Best cost/performance ratio |
Real-time multimodal conversation | GPT‑4o | Minimal latency, free up to a certain volume |
Creative writing / empathy | GPT‑4.5 (preview) | More natural tone, high “EQ” |
While waiting for GPT‑5
If you need the absolute best today, o3-pro and GPT‑4.5 cover most advanced needs. If you can wait a few weeks, it might be worth keeping an eye on the GPT‑5 rollout: according to leaks, it promises to merge reasoning, memory, and agents into a single experience.
Do you have a specific project in mind? Tell me what you need to do—from thesis writing to app refactoring—and I can go deeper on which model (and which plan) makes the most sense for you.
___________
FOLLOW US FOR MORE.
DATA STUDIOS
