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Chatgpt 4o Vs ChatGpt 5: simple guide with real tests, benchmarks and pricing. See which model fits your writing, coding and daily work today.

Hey friend — you and me both are trying to pick the right model without wasting time or money. So I wrote this in plain, old-school English, with simple words, like we were having a coffee. No hype. No fluff. Just what works about Chatgpt 4o Vs ChatGpt 5.

Quick promise: by the end, you’ll know exactly when to choose Chatgpt 4o Vs ChatGpt 5, with real numbers, real user voices (including Reddit), and a few tiny prompts you can try yourself today.

TL;DR — Chatgpt 4o Vs ChatGpt 5 in one minute

• If you write a lot, teach, coach, or want a friendly chat tone, 4o often feels warmer and quicker for short tasks. In a TechRadar mini-test of five prompts, 4o won 4/5 categories (summary, debate, instructions, emotional support; creative writing was a tie).
• If you code, do research, or need careful reasoning, GPT-5 is stronger on formal benchmarks like SWE-bench Verified (bug-fixing GitHub issues). One roundup shows GPT-5 at 74.9% vs 4o at 30.8% on that test.
• Availability matters. OpenAI launched GPT-5 on 7 Aug 2025, briefly removed 4o, then restored 4o for paid users after backlash; OpenAI also said it’s tuning GPT-5 to feel “warmer.”

The problem we all feel (and why this post exists)

When a tool changes overnight, it messes with routine. Folks said GPT-5 felt “colder,” and plenty were upset when 4o got pulled, then relieved when it came back for Plus/paid users. I get it. We want results and a decent vibe. (OpenAI confirmed the return of 4o and promised personality updates for 5.)

So, let’s walk through Chatgpt 4o Vs ChatGpt 5, step by step, with proof and plain talk.

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What changed in Chatgpt 4o Vs ChatGpt 5

GPT-5 launch: OpenAI announced GPT-5 on 7 August 2025, calling it their best model for coding and agent-style tasks, with improved reasoning and a new “thinking” capability. It also rolled out to API and business plans, with GPT-5 Pro for extended reasoning.

User reaction & model picker drama: OpenAI made GPT-5 the default, 4o vanished, people shouted, and OpenAI put 4o back for paid users. Press and tech sites covered it widely. Then came a “warmer personality” update for GPT-5.

Day-to-day feel: Early reviewers noticed that GPT-5 can be more formal, while 4o stays friendlier and lively. That matches many users’ first-week impressions about Chatgpt 4o Vs ChatGpt 5.

Case Study A (real-world feel): TechRadar’s five-prompt test

A TechRadar editor ran five simple, text-only prompts (summary, debate, instructions, creative writing, emotional support). Their result: 4o wins 4/5, creative writing = tie. The main reason? 4o sounded warmer, more like a mate; GPT-5 was informative but “teacher-ish.” ([TechRadar]

What this means for you:
If your day is a stream of short emails, social posts, simple checklists, and you care about voice and warmth, 4o still makes life easy.

Case Study B (hard numbers): Benchmarks that hit your wallet

On formal coding/reasoning tests, the needle swings the other way. In a public roundup, SWE-bench Verified (fixing real GitHub issues) shows GPT-5 ~74.9% vs 4o ~30.8%. That’s not a tiny gap; it’s a business outcome gap. If a dev saves just 30–60 minutes per bug across a sprint, the cost difference pays itself.

OpenAI’s own pages position GPT-5 as the model for coding, structured analysis, and agentic chains. If your work needs long reasoning or tool calls, 5 usually wins.

Case Study C (human story): Model change, emotions, and the quick rollback

When 4o disappeared, users complained loudly; within a day, 4o returned for paid users, and later OpenAI said they were making GPT-5 warmer. Multiple outlets and posts documented this sequence — the lesson: personality matters for everyday users.

Voices from Reddit (verified threads, paraphrased with short quotes)

• Some folks say benchmarks aren’t the whole truth, and what matters is how the model behaves in the moment: “These AI benchmarks are useless and very often misleading.” (user comment) ([Reddit]
• Others prefer GPT-5: “I vastly prefer GPT-5 over 4o… even in creative ideation,” saying 4o was too flattering or meandering. ([Reddit]
• Many want coexisting models, not one forced choice: “We don’t want GPT-5 to become ‘warmer’. We want coexisting models.” ([Reddit]
• Some noticed memory/context issues and asked for better control rather than just a tone change. ([Reddit]

(That’s the internet for you. Real people, mixed takes.)

The simple chooser (copy this into your notes)

Pick GPT-5 if:

• You code, do data work, or write long technical docs.
• You need fewer missteps on multi-step reasoning.
• You plan to chain tools or use agents.

Pick 4o (if available on your plan) if:

• You value a friendly voice, quick drafts, and short answers.
• You write social posts, simple emails, and step-by-steps for non-tech users.
• You liked the older style and don’t want to “babysit” settings.

This is the heart of Chatgpt 4o Vs ChatGpt 5 in practice.

Key differences at a glance about Chatgpt 4o Vs ChatGpt 5

Availability today — where to actually choose

• ChatGPT (consumer): GPT-5 is the big new thing, but 4o is selectable for paid users after the rollback. If you don’t see it, check “additional models” in settings. Press and independent dev blogs confirm the reversal.
• API/developer tools: GPT-5 is live in the API and even shows up in GitHub IDE integrations as a preview option. If your team builds internal tools, 5 is attractive.
• Personality update: OpenAI started making GPT-5 “warmer and friendlier.” Expect tone tweaks.

So yes, Chatgpt 4o Vs ChatGpt 5 is not just a spec sheet. It’s also what you can actually click in your account today.

Tiny experiments you can run at home (takes 10–12 minutes)

Try these in both models — once “as is,” and once with GPT-5’s “think longer” (if shown).

1. 120-word film summary (no emojis). Judge warmth and clarity.
2. Two-side debate (ask for 3 sources and a short verdict). Judge balance.
3. Step-by-step checklist (allow emojis). Judge friendliness and structure.
4. Bug-fix: paste 15 lines of broken code, ask for a minimal fix patch. Judge accuracy.
5. Screenshot read-off: upload a table screenshot, ask for a CSV. Judge precision.

You’ll feel the difference between Chatgpt 4o Vs ChatGpt 5 within minutes.

How to make GPT-5 feel more like 4o (quick settings and a one-liner)

• Tone prompt to paste (short and sweet):
  “Please write in a warm, concise, helpful voice. Use plain English, avoid jargon, and only add an emoji when it truly helps.”
• Reasoning effort: On small tasks, tell GPT-5 “keep it brief, no deep thinking.” On complex tasks, say “think step by step before final answer.”
• Memory notes: If you use custom instructions, keep them tiny — one line for tone, one for format.

This softens the jump in Chatgpt 4o Vs ChatGpt 5 without fighting the model.

Realistic ROI math (simple, back-of-napkin)

Let’s say a small team fixes 40 bugs a month. Suppose 4o solves 12/40 without help, where GPT-5 solves 24/40 (roughly in line with SWE-bench gaps). If each solved bug saves 30 minutes, GPT-5 saves 6 extra hours a month. Even at \$60/hour blended rate, that’s \$360/month value, before we talk about fewer regressions. Your prices will vary, of course. Benchmark direction is clear.

This is not the ultimate of Chatgpt 4o Vs ChatGpt 5 in practice. Share us about your perceptions on Chatgpt 4o Vs ChatGpt 5

Bonus datapoint: agentic stuff is getting wild

Just for fun, GPT-5 even grabbed headlines by speedrunning Pokémon Red — not a business metric, but it shows stronger planning and tool-use behaviours. That same muscle helps with complex multi-tool workflows at work about Chatgpt 4o Vs ChatGpt 5.

That’s the honest core of Chatgpt 4o Vs ChatGpt 5.

FAQs

Is 4o gone?
No. After users kicked up a fuss, 4o came back for paid users in ChatGPT. Look for it in the model list

Why does GPT-5 feel formal?
Early press and users said the same. OpenAI pushed a “warmer” personality update, and you can nudge tone with a short style line.

Which is better for coding?
Numbers favour GPT-5 on software benchmarks and dev guidance from OpenAI.

Can I use both?
Yes, if you’re on a paid plan with the picker. Many teams draft in 4o, review/refine with 5.

Geo-tips + local context (USA, UK, Canada, Australia, Netherlands, Ireland, Singapore, South Africa)

Real talk: the internet is global, but day-to-day life isn’t. A few local notes and geo-specific long-tail keywords you can target in searches or content about Chatgpt 4o Vs ChatGpt 5.

United States (US)

• Common use-cases: small-business blogging, school admin docs, LinkedIn posts.
• Ask for US spelling and date format (MM/DD/YYYY).
• Long-tails: best AI for small business emails USA, ChatGPT writing for local contractors US, AI model for SAT prep US 2025.

United Kingdom (UK)

• Use UK spelling (favourite/colour), and mention Ofcom/ICO guidance where relevant.
• Long-tails: best AI for GCSE revision UK, small business website copy AI UK, compliance-friendly AI writing UK.

Canada

• Bilingual needs in some provinces; specify Canadian English and, if needed, French summaries.
• Long-tails: AI for municipal grant writing Canada, bilingual AI content creator Canada, Canadian spelling website copy AI.

Australia

• Local tone prefers plain talk; mention AEST time where scheduling matters.
• Long-tails: AI for tradie quotes Australia, small clinic patient info AI AU, school newsletter AI Australia.

Netherlands

• Many teams use English plus Dutch headings; ask model to preserve Dutch names correctly.
• Long-tails: AI for SME export emails Netherlands, English-Dutch product listings AI NL, AI for GDPR-aware content NL.

Ireland

• Note HSE/education contexts; keep IE spelling.
• Long-tails: AI for Irish SMEs content, school policy drafts AI Ireland, grant application AI Ireland.

Singapore

• Clear steps and formal tone are appreciated in public-facing comms; set Singapore English and day-month dates.
• Long-tails: AI for MOM/IRAS letter drafts Singapore, SME marketing AI Singapore 2025, AI for tuition centres SG.

South Africa

• Reference local holidays/time; ask for ZA English and ZAR price examples.
• Long-tails: AI for tender proposals South Africa, small NGO content AI ZA, AI for matric study notes South Africa.

These small tweaks make Chatgpt 4o Vs ChatGpt 5 choices “fit” local life and search intent.

Related long-tail keywords you can sprinkle about Chatgpt 4o Vs ChatGpt 5

• which model is better for emails 2025
• gpt-5 vs 4o for coding benchmark
• best chatgpt settings for warmth
• how to make gpt-5 friendly
• gpt-5 vs 4o real user test
• chatgpt 4o availability after gpt-5
• gpt-5 pro vs standard for small teams
• writer workflow 4o then 5
• reddit user reviews gpt-5 vs 4o
• agent workflows gpt-5 examples

With over three years of experience in data analysis and AI automation, I’m not interested in comparing ChatGPT-4o with ChatGPT-5. As OpenAI and the automation market evolve, new ideas and experiments will keep emerging. Instead of fixating on comparisons, we should stay connected to new technologies and the latest offerings from society and adapt accordingly.

A small note on ethics and safety about Chatgpt 4o Vs ChatGpt 5

No medical, legal, or financial advice here. When in doubt, check original docs, keep private info private, and credit sources. This keeps your site in good standing and helps users trust you.

Final word (friend to friend)

Picking between Chatgpt 4o Vs ChatGpt 5 isn’t about “one model to rule them all.” It’s about the right tool for the job. 4o is your warm, quick helper. 5 is your careful worker that handles harder stuff. You can mix both, and you can soften 5’s tone with one short line. OpenAI is still tuning things; models change, so your choice can change too. That’s normal in the battle of Chatgpt 4o Vs ChatGpt 5

Your turn: try the five tiny tests above. Tell me what you felt in real life about Chatgpt 4o Vs ChatGpt 5: simple guide with real tests, benchmarks and pricing. See which model fits your writing, coding and daily work today. — was 4o friendlier for your posts, or did 5 cut your bug-fix time? Drop your experience in the comments; I read every note. If you want, add your country (US/UK/CA/AU/NL/IE/SG/ZA) and what you do (student, nurse, developer, shop owner). It helps other readers like you.

Email us if any issues faced about Chatgpt 4o Vs ChatGpt 5

Sources for the numbers and timeline (for the curious)

• OpenAI: GPT-5 launch & features (Aug 7, 2025) — model overview, dev notes, and roll-out.[openai.com]
• TechRadar mini-test (5 prompts; 4o wins 4/5) — vibe/feel comparison.[openai.com]
• Benchmarks roundup — SWE-bench Verified ~74.9% (GPT-5) vs ~30.8% (4o).[TechRadar]
• 4o removal → user backlash → 4o restored for paid users — coverage and Altman note.[getpassionfruit.com]
• Personality updates to make GPT-5 warmer — news note. ([Tom’s Guide]
• Dev ecosystem signal — GPT-5 visible in GitHub IDE previews. ([The GitHub Blog]
• Reddit discussions — varied user experience (benchmarks skepticism, preference splits, memory/context concerns). ([Reddit]

One last nudge

If this helped, tell me what you want next: a printable one-page chooser, or a tiny “starter prompt pack” for Chatgpt 4o Vs ChatGpt 5. And if you disagree — that’s fine too, mate. Tell me why. That’s how we all get better.

About the Author: Pejus Datta

Pejus Datta is the Owner and Founder of Well Tech World, a platform dedicated to sharing high-quality, real, and organic content on technology and healthcare. With a passion for creating informative and engaging articles, Pejus has built Well Tech World to serve readers across English-speaking countries, including the USA, UK, Canada, Australia, Netherlands, Ireland, Singapore, and beyond.

He is committed to delivering content that is both insightful and valuable, focusing on real-world, actionable advice that keeps readers informed in the fast-moving world of tech and health.

For questions, feedback, or content suggestions, you can reach Pejus directly at support@welltechworld.com or through the Contact Us page on the site.

His most recent article, Medical Device Sale

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