If you are a ChatGPT Plus user, you can access GPT-4o in addition to GPT-5. If you are a Pro user, you can access the entire suite of legacy models, including GPT-4o, GPT-4.5 (research preview), o3, ...

The ChatGPT o3 model defeated the xAI model Grok 4 in the final round of a chess tournament to find the strongest ...

Following the launch of GPT-5, users expressed discontent over its performance and reduced messaging capabilities compared to ...

Elon Musk downplayed the loss, calling Grok’s earlier strong performance a “side effect” and stating that xAI had “spent ...

Vectara, the RAG-as-a-Service and AI agent platform that operates the industry’s top hallucination leaderboard for foundation and reasoning models, has put OpenAI’s claims to the test and found that ...

GPT-5 Pro, GPT-5 Thinking, and o3 to analyze my code repository - and found surprising differences in detail, reasoning, and ...

If ChatGPT 5 is any indication, then it seems the era of “transformers” is over. What comes next in AI is not yet certain.

If you have been following the GPT-5 rollout, one thing you might be noticing is how much of an attachment some people have ...

Many ChatGPT Plus users see GPT-5 as a downgrade, prompting OpenAI to restore features and promise higher message limits.

OpenAI’s GPT-5 aims to curb AI hallucinations and deception, raising key questions about trust, safety, and transparency in ...

Now, after rolling it out, the company is trying to address concerns from users who find the new ChatGPT 5 difficult to use ...

OpenAI’s GPT-5 rollout faces backlash over UI changes, performance issues, and personality shifts, prompting the company to ...