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OpenAI had a big week when it comes to ChatGPT, unleashing multiple new models that are available to users right away. The chatbot got several new features that are scattered around the various models ...

After the launch of GPT-5, OpenAI brought GPT-4o back for paid subscribers because users missed it, but now, “only 0.1% of users” are still choosing GPT‑4o “each day,” the company says. OpenAI will ...

OpenAI is preparing to launch as many as three new AI models, possibly called "o4-mini", "o4-mini-high" and "o3". Right now, ChatGPT has as many as five models, including GPT 4o (the non-reasoning ...

OpenAI is killing its ultra-popular GPT-4o and several of its older models -- for real this time. The AI company announced at the beginning of February that it planned to retire GPT-5, GPT-4o, GPT-4.1 ...

OpenAI will retire GPT‑4o, GPT‑4.1, GPT‑4.1 mini, and OpenAI o4-mini from ChatGPT. Share on Facebook (opens in a new window) Share on X (opens in a new window) Share on Reddit (opens in a new window) ...

OpenAI model names have been confusing, but the company is finally taking steps to make it easier for users to understand the different ChatGPT models. OpenAI quietly posted an article titled "ChatGPT ...

- o3 for when you want a more thoughtful response or you suspect the question might be tricky for the AI - o4 mini for quick but detailed responses to coding problems - o4 mini high when it’s a ...

First reported by TechCrunch, OpenAI's system card detailed the PersonQA evaluation results, designed to test for hallucinations. From the results of this evaluation, o3's hallucination rate is 33 ...

OpenAI released two powerful reasoning models a few days ago that make ChatGPT even more impressive. These are o3 and o4-mini that you can test right away in ChatGPT. They're much better at reasoning ...

GPT-4o is back after GPT-5 backlash. Credit: Smith Collection / Gado / Getty Images After a rocky GPT-5 launch, GPT-4o is officially back for paying ChatGPT subscribers. OpenAI CEO Sam Altman also ...