Chat with ChatGPT 5

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This is an earlier model. ChatGPT 5.6 Sol is the current OpenAI model and is faster and more capable. Try ChatGPT 5.6 Sol →
Deep reasoning task Multi-step analysis
Review my code Find bugs & improvements
Research a topic In-depth explanation
Write long-form content Article, report, essay

OpenAI's most advanced model yet: GPT-5 delivers a major leap in reasoning, multimodal understanding, and instruction-following across every task type.

ChatGPT 5 at a glance

ProviderOpenAI
Access on AskAI.freePremium model; the 7-day Pro trial unlocks access.
Best first testComplex multi-step reasoning and analysis
Model positionEarlier release; compare it with ChatGPT 5.6 Sol.

What makes ChatGPT 5 different

GPT-5 is the original fifth-generation flagship on this site. It still suits complex general reasoning and long-form output, while GPT-5.5 and GPT-5.6 provide newer alternatives. Use this page when compatibility or comparison matters; start with a current model when you have no version requirement.

What ChatGPT 5 is best for

  • Complex multi-step reasoning and analysis
  • Long-form research reports and detailed documents
  • Advanced code generation, review and architecture
  • Nuanced creative writing with precise tone control
  • Tasks requiring deep context and memory across long inputs

How to use ChatGPT 5

Step 1 Hand ChatGPT 5 the hardest version of your task: give it the full background, the goal, and every constraint, since it reasons best when it can see the whole problem at once.
Step 2 Ask it to think step by step, weigh tradeoffs, and surface assumptions before committing to an answer, which is where GPT-5's reasoning depth pays off over faster models.
Step 3 Use follow-ups to pressure-test the logic, request a more rigorous version, or have it turn the reasoning into a polished long-form deliverable.

Example prompts

Unlimited ChatGPT 5, free for 7 days

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Frequently asked questions

Is ChatGPT 5 really free here?

Your first question is free with no signup. Free accounts get a monthly allowance; Pro plans unlock higher limits and priority access.

How is GPT-5 better than GPT-4o?

GPT-5 shows significant improvements in reasoning depth, factual accuracy, and following complex multi-part instructions compared to GPT-4o.

Can ChatGPT 5 browse the web?

Not on this platform. For real-time web search, switch to one of the Perplexity search models available in your sidebar.

Should I use GPT-5 or GPT-4o?

Use GPT-5 for hard reasoning tasks, long documents, and high-stakes writing. Use GPT-4o for quick, everyday questions where speed matters more.

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