AI Question Answered
What are ChatGPT limitations in 2026?
By Council Research TeamUpdated: Jan 27, 2026
Quick Answer
ChatGPT still has knowledge cutoffs, hallucination issues, and a smaller context window than Claude.
Detailed Answer
Despite GPT-5 improvements, ChatGPT still hallucinates on niche topics, has a 128K context window (vs Claude's 200K), and cannot access real-time information without plugins. It sometimes produces verbose, generic responses and may refuse requests that other models handle fine. For specialized tasks, models like Claude (writing), Perplexity (research), or DeepSeek (coding) often outperform it.
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