I've been using GPT-5 Pro for a while now, and I really enjoy the Deep Research and Pro Thinking features. I often use these two together; doing research and then asking pro-thinking questions. They've been super helpful for designing my game mechanics. Just last weekend, I bought Gemini Ultra out of curiosity about what it can do. My first test was about marketing services for a technical consulting company. It came up with some great ideas, where GPT-5 was a bit behind for the same research. Since then, I've run quite a few deep research sessions, mostly on technical topics like designing cloud architectures and creating trade-off documents. Besides that one marketing example, I think GPT-5 Pro was a bit better overall. I haven't found a strong reason to ditch GPT Pro and switch fully to Gemini Ultra yet. Also, I haven't been able to use Deep Thinking because I keep getting system busy messages. UPDATE: I was able to run Deep Thinking on Gemini for analyzing my game mechanics (it's a 4X game, with complex rules). It's nowhere near GPT-5, sorry :) With GPT-5, I found cross-references between rules, inconsistencies between different phases of the game, and gaps in the economic model, but with Gemini 3, it was just a short list of really obvious issues. Answer from gobitpide on reddit.com
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Graph AI
graphapp.ai › blog › gemini-ultra-vs-chatgpt-plus-gpt-4-a-comprehensive-comparison
Gemini Ultra vs ChatGPT Plus (GPT-4): A Comprehensive Comparison | Graph AI
When it comes to performance, speed and efficiency are crucial factors for both Gemini Ultra and ChatGPT Plus. Gemini Ultra excels in its real-time processing capabilities, providing responses in a matter of milliseconds.
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The Neuron
theneurondaily.com › p › gemini-ultra-vs-chatgpt4
😺 Gemini Ultra vs. ChatGPT-4
April 14, 2025 - Gemini Pro 1.0 (previously Bard) is akin to ChatGPT-3.5, making the best free chatbot on the market Claude 2.1—yes, you heard that right. Now, Google claims that Gemini Ultra is the best available chatbot, outperforming ChatGPT-4 on benchmarks.
People also ask

Gemini vs. ChatGPT: Which is better?
It depends on your needs. ChatGPT is ideal for writing, brainstorming, and coding, while Gemini excels in real-time research, multimodal input, and longer conversations with Google Workspace integration.
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learn.g2.com
learn.g2.com › gemini-vs-chatgpt
I Tested Gemini vs. ChatGPT and Found the Clear Winner
ChatGPT vs Gemini: Which is more accurate?
Gemini has a more recent knowledge base (January 2025) and integrates with live Google Search, making it more accurate for real-time information.
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learn.g2.com
learn.g2.com › gemini-vs-chatgpt
I Tested Gemini vs. ChatGPT and Found the Clear Winner
Which is more user-friendly, ChatGPT or Gemini?
ChatGPT has custom GPTs, memory, and a sleek UI. Gemini offers Google Workspace integration and easier file uploads. Preference depends on your workflow.
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learn.g2.com
learn.g2.com › gemini-vs-chatgpt
I Tested Gemini vs. ChatGPT and Found the Clear Winner
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Reddit
reddit.com › r/chatgptpro › those who have been using gpt pro and gemini ultra... what's your preference?
r/ChatGPTPro on Reddit: Those who have been using GPT Pro and Gemini Ultra... What's your preference?
1 month ago -

Folks my main use case is product development, deep market research, and product strategy. I code a good chunk myself but use AI for that as well. Have been a GPTPro user so far but thinking of switching to the much hyped Gemini 3.0 on the Ultra tier.

Those who have access to these top paid plans, which models do you generally prefer? Also mention your use case as well.

Thank you

Top answer
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I've been using GPT-5 Pro for a while now, and I really enjoy the Deep Research and Pro Thinking features. I often use these two together; doing research and then asking pro-thinking questions. They've been super helpful for designing my game mechanics. Just last weekend, I bought Gemini Ultra out of curiosity about what it can do. My first test was about marketing services for a technical consulting company. It came up with some great ideas, where GPT-5 was a bit behind for the same research. Since then, I've run quite a few deep research sessions, mostly on technical topics like designing cloud architectures and creating trade-off documents. Besides that one marketing example, I think GPT-5 Pro was a bit better overall. I haven't found a strong reason to ditch GPT Pro and switch fully to Gemini Ultra yet. Also, I haven't been able to use Deep Thinking because I keep getting system busy messages. UPDATE: I was able to run Deep Thinking on Gemini for analyzing my game mechanics (it's a 4X game, with complex rules). It's nowhere near GPT-5, sorry :) With GPT-5, I found cross-references between rules, inconsistencies between different phases of the game, and gaps in the economic model, but with Gemini 3, it was just a short list of really obvious issues.
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I would say the Gemini Ultra plan only really makes sense if you're going to take advantage of everything that comes with it. Meaning specifically the Veo 3.1 credits. Otherwise you get pretty much everything you would otherwise need out of just a regular Gemini subscription. The only thing you'd be missing is the Deep Think version of Gemini 3 Pro, and I guess you wouldn't get as much deep research, but you'd still be able to pull some. In my workflow I switch between ChatGPT, Claude, Gemini and Grok 4.1 depending on the task as I've found they have different quirks that work better in specific situations.
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G2
learn.g2.com › gemini-vs-chatgpt
I Tested Gemini vs. ChatGPT and Found the Clear Winner
July 18, 2025 - Here’s what I found: ChatGPT absolutely crushes it when it comes to creative writing, coding, and just sounding like a human. Gemini, on the other hand, is your go-to for real-time research, complex reasoning, and anything tied into Google’s ...
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Reddit
reddit.com › r/chatgpt › in-depth comparison: chatgpt 4 vs gemini ultra
r/ChatGPT on Reddit: In-depth comparison: ChatGPT 4 Vs Gemini Ultra
September 28, 2023 -

So I quite simply put in a bunch of articles and Reddit posts and comments (sorry guys) into ChatGPT (cost Gemini didn't do this very well) and asked it to list out all the features mentioned and compare how each AI performs.... do you agree?

Summary and Recommendations

  • For Creative Writing: Choose Gemini Ultra for its superior capabilities.

  • For Coding: It's a tie; consider your need for advanced code or fewer mistakes.

  • For General Use: Gemini Ultra shines with speed and human-like interactions; GPT-4 offers broader language support and better OCR capabilities.

Comparison: Gemini Ultra vs GPT-4

Aspect Comparison

Aspect Gemini Ultra GPT-4 Winner/Remarks
Reasoning On par with GPT-4, wins some tests, loses others On par with Gemini, wins some tests, loses others Tie
Coding Provides more advanced code with better explanation but has limitations Makes fewer mistakes, can be "lazier" Tie
Hallucination Less hallucination with search involved Hallucinates less without search Tie
Creative Writing Far better at creative writing Less capable in creative writing compared to Gemini Ultra Win
Translation Significantly better translation quality Lesser in translation quality compared to Gemini Ultra Win
Text Summarization Better at summarization but shorter context Longer context but not as concise as Gemini Ultra Win/Tie
General Conversations More human-like and intelligent Less human-like compared to Gemini Ultra Win
Speed At least 3 times faster compared to GPT-4-Turbo Slower compared to Gemini Ultra Ultra Win
Message Cap No message cap Has message cap Ultra Win
Task Refusal Refuses to do tasks more compared to GPT-4 More compliant in performing tasks GPT-4 Win
Language & Modality English only, multi-modal aspects not enabled yet Supports more languages and has more plugins like Code Interpreter GPT-4 Win for Now
Image Generation Realistic images but lacks the creative prompt improvement of DALL-E 3 More sophisticated and creative images with DALL-E 3 Depends on preference
OCR & Image Recognition Struggles with OCR and image recognition, relies on Google Lens More capable in OCR and image recognition tasks GPT-4 Win
Mobile App Availability No mobile app Availability of mobile apps and broader ecosystem integration GPT-4 Win

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EM360Tech
em360tech.com › tech-article › gemini-ai-vs-chatgpt
Gemini AI vs ChatGPT: Which is Better? | EM360Tech
February 27, 2025 - Google has so far struggled to attract as much attention as OpenAI's explosive ChatGPT. But Gemini Ultra performs better than ChatGPT on 30 of the 32 academic benchmarks in reasoning and understanding it tested on.
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TechTarget
techtarget.com › searchenterpriseai › tip › Gemini-vs-ChatGPT-Whats-the-difference
Gemini vs. ChatGPT: What's the difference? | TechTarget
ChatGPT is built on OpenAI's GPT-3.5 or GPT-4. Gemini has three sizes: Gemini Pro for a wide range of tasks, Gemini Ultra for highly complex tasks and Gemini Nano for mobile devices.
Find elsewhere
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Reddit
reddit.com › r/chatgptpro › gemini ultra
r/ChatGPTPro on Reddit: Gemini ultra
May 22, 2025 -

With Google launching their premium subscription tier, anyone else feel a bit let down by chatgpt pro?

The performance on benchmarks wipes the floor with o3, plus with all available tools and google space integration, there is no way for openai to catch up is there?

Anw given that gemini pro (the 20 bucks) subscription competes well with chatgpt pro for everything I've tried so far, I can only imagine how good the premium will be. Currently awaiting international rollout to make the switch

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DemandSage
demandsage.com › home › latest blog posts › gemini advanced vs chatgpt plus (2025 test winner)
Gemini Advanced vs ChatGPT Plus (2025 Test Winner)
September 17, 2025 - Gemini Advanced, on the other hand, boasts its “Advanced Coding Abilities.” · It is necessary to test the coding abilities of both, as it is the current favorite way for many users to use an LLM (Large Language Model).
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The Prompt Warrior
thepromptwarrior.com › p › tested-gemini-ultra-vs-chatgpt-claude
I tested Gemini Ultra vs. ChatGPT and Claude
April 14, 2025 - It's stronger at reasoning and brainstorming than writing. Nothing has really changed here since my comparison with Claude a few months ago. Gemini Ultra impressed me, especially with its conciseness natural tone.
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PCMAG
pcmag.com › home › comparisons › ai
ChatGPT vs. Gemini: Which AI Chatbot Is Actually Smarter? | PCMag
June 5, 2025 - Gemini’s video generation is ... generation model, Veo 3, behind the pricey AI Ultra plan, but you do get more lifelike video from it than with ChatGPT....
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Fluent Support
fluentsupport.com › home › gemini vs chatgpt 5: which ai is better in 2025?
Gemini vs ChatGPT 5: Which AI is Better in 2025? - Fluent Support
August 26, 2025 - GPT-5 excels across various multimodal benchmarks, including visual, video, spatial, and scientific reasoning. This stronger multimodal capability means ChatGPT can interpret images and other non-text inputs more accurately.
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WIRED
wired.com › gear › chatgpt › chatgpt vs. gemini: which ai chatbot subscription is right for you?
ChatGPT vs. Gemini: Which AI Chatbot Subscription Is Right for You? | WIRED
February 15, 2024 - What’s Included With the AI Chatbot Subscriptions · Gemini Advanced from Google: As a package deal, Gemini Advanced offers the most to users on top of an impressive chatbot. Yes, you receive access to Google’s best AI model, Gemini Ultra ...
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Beebom
beebom.com › gemini-ultra-vs-gpt-4
Gemini Ultra vs GPT-4: Google Still Lacks the Secret Sauce | Beebom
February 12, 2024 - So if you are looking for an AI model that is good at creative writing, I think Gemini Ultra is a solid option. Add the latest knowledge from Google Search, and Gemini becomes a remarkable tool for researching and writing on any topic.
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OpenAI Developer Community
community.openai.com › chatgpt
ChatGPT vs Googles Gemini Ultra - ChatGPT - OpenAI Developer Community
February 9, 2024 - Just subscribed to Google Gemini Ultra and am very disappointed, an absolute joke. Has anyone tried it?
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XDA Developers
xda-developers.com › home › google gemini advanced vs chatgpt plus: which is better?
Google Gemini Advanced vs ChatGPT Plus: Which is better?
February 11, 2024 - Advanced comes as a part of an ... just, well, a ChatGPT tier in its own enclave. Gemini Advanced is powered by the Gemini Ultra model, which Google claims outperforms GPT-4, and we put that to the test....
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Forbes
forbes.com › forbes homepage › innovation › enterprise tech
AI Showdown: ChatGPT Vs. Google's Gemini – Which Reigns Supreme?
July 2, 2024 - Remember, ChatGPT is just the interface ... users of ChatGPT Pro) or GPT3.5 (free users.) In Google’s case, the interface is called Gemini (previously Bard), and it’s used to communicate with the language model, which is a separate entity but is also called Gemini (or Gemini Ultra if you’re ...
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Tech.co
tech.co › home › news › google gemini vs chatgpt 2024: ai chatbot head-to-head test
Google Gemini vs ChatGPT: Which AI Chatbot Wins in 2024?
March 13, 2024 - Gemini Ultra, the language model that powers Gemini Advanced, also provided marginally better responses than GPT-4, which powers ChatGPT (both $20/month) – as well as better imagery.