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author: "Umesh Malik"
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title: "Umesh Malik's Blog - GPT-5 Articles | GPT-5 Tutorials"
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# GPT-5

1 article

 [![OpenAI GPT-5.3 Instant overview showing three key improvements: fewer refusals, better web answers, and smoother conversational tone](https://umesh-malik.com/blog/gpt-5-3-instant-cover.png)

LLM Engineering • Mar 4, 2026

### OpenAI GPT-5.3 Instant: 26.8% Fewer Hallucinations, Reduced Refusals, and Better Web Answers

GPT-5.3 Instant brings 26.8% fewer hallucinations, fewer needless refusals, and better web-sourced answers — what changed and why it matters for devs.

10 min read

Read more →](https://umesh-malik.com/blog/openai-gpt-5-3-instant-fewer-refusals-better-answers)