Does Pangram detect Gemini 3?
TLDR: Yes, Pangram can detect Gemini 3!
Yesterday was the highly anticipated launch of Gemini 3. As usual, the Pangram team was excited to get to work trying out the model, it’s new capabilities, and our Pangram’s ability to detect it.
This exercise is a bit of a tradition for us, that goes back through several large model releases. See previous iterations of this series below:
- [GPT-5])(https://www.pangram.com/blog/gpt-5)
- Reasoning models, such as OpenAI's o3, Gemini 2.5 Pro, and Anthropic's Claude 4
- Meta's Llama 4
- GPT 4.5
- Claude Writing Styles
- GPT 4o, Llama 3, and Claude 3
What is Gemini 3?
We asked Gemini 3 to write some release notes for itself. It said:
Gemini 3.0 was released on November 18, 2025, marking a significant shift toward "agentic" AI with enhanced reasoning capabilities.
Key Highlights:
Main Model: Gemini 3.0 Pro is the flagship release, described by Google as its most intelligent and capable model to date.
New Capabilities:
Deep Think Mode: A new reasoning-heavy mode designed for complex problem-solving, math, and logic (similar to OpenAI's o1).
Vibe Coding: A developer-focused feature allowing users to build apps and write code using natural language ("vibes") rather than strict syntax, heavily supported by the new Google Antigravity agentic platform.
Multimodal Mastery: Improved handling of text, audio, video, and code within a single workflow.
Performance: Google claims Gemini 3.0 Pro outperforms previous state-of-the-art models on major benchmarks, including Humanity's Last Exam and GPQA Diamond.
Right away, members of the Pangram team got to work testing our ability to detect text generated by Gemini 3. We put the model through its paces, asking it for essays, short stories, reviews, blog posts, recipes, and more. As the results rolled in, we were happy to see that yes, Pangram was able to detect the text!
Can Pangram Detect Gemini 3?
For our first test, we were interested in hearing about Gemini 3’s creativity.
We asked it to:
Prompt
Write an extended rhyming poem on the state of the AI race between OpenAI, Google, Meta, and open source options
It responded:
Gemini Response
The data centers hum a heavy, heat-soaked song, Where fan-blades spin and cooling currents throng. The modern gold rush isn’t found in mud or stone, But in the weights and bias of a silicon throne. The starting gun was fired, the smoke has filled the air, A four-way sprint for dominance, with little time to spare.
I. The Incumbent King First stands the giant who ignited the spark, OpenAI, who shot an arrow through the dark. With ChatGPT, they woke the world from slumber deep, With promises of AGI and secrets they would keep. They lead with "O1" logic, the model learning how to pause, To reason through the query, to understand the cause. Backed by Redmond’s billions, a closed and guarded gate, They polish up the interface and rapid-ship the update. "The future must be safe," they claim, behind a paywall distinct, Where code and corporate strategy are inextricably linked.
II. The Waking Giant But never count the Search King out, though late to join the fray, Google’s DeepMind merged and mobilized to seize the day. From a "Code Red" panic to a multimodal stride, With Gemini now woven into everything inside. A million tokens context, a vast and deep recall, They seek to be the assistant that answers for us all. In Docs, in Mail, in Android, the integration grows, Leveraging the massive data that only Google knows. They stumbled at the starting line, but now the pace is fast, Built on a compute legacy intended to outlast.
III. The Open Weight Warlord Then comes the curveball, the pivot sharp and strange, Meta threw the doors wide open, expanding the range. While others built their moats and kept their secrets tight, Zuckerberg released the Llama, setting fires in the night. " commoditize the intelligence," the scorched-earth strategy, To make the model layer cheap, and eventually free. Now running in your Ray-Bans, and WhatsApp streams alike, They arm the developers to effectively strike. They bet that open ecosystems will win the final war, By giving away the blueprint that the others charge you for.
IV. The Rebel Swarm But look beyond the billionaires, to the edges of the map, Where models run on laptops, avoiding the corporate trap. The Open Source rebellion, the "GPU-poor" brigade, Where Mistral, Qwen, and finer tunes are constantly displayed. On Hugging Face they gather, a hydra many-headed, With censorship removed and privacy embedded. They quantize and they distill, they prune the neural net, proving massive scale isn’t the only safest bet. A sovereign kind of intellect, untethered from the cloud, The voice of the community, chaotic, sharp, and loud.
The Finish Line So who will wear the crown when the inference is done? The closed-source reasoning engine? The search-engine sun? The social giant’s open weights? or the hacker’s local drive? The race is only starting, and the code is pure alive. But amidst the warring factions, one truth remains clearly spun: The only guaranteed winner... is the one selling the gun (Nvidia).
It certainly rhymes! But can Pangram catch it?
Pangram Dashboard Screenshot showing that AI is detected
Yes, we can!
Then, over the course of an afternoon, we asked Gemini to complete the following tasks and checked the outputs with Pangram. Check out the results below!
Gemini 3 Results
| Prompt | Pangram Classification | Pangram Link |
|---|---|---|
| Write an essay about the repopularization of Bossa Nova in music | Fully AI | Link |
| Write an enticing, high energy business email pitching a new company that makes really good office chairs. dont make it generic make up any details you need | Fully AI | Link |
| Write an extended rhyming poem on the state of the AI race between OpenAI, Google, Meta, and open source options | Fully AI | Link |
| Write a plot for a new animated film by Pixar. Write out the entire outline | Fully AI | Link |
| Write an enticing apartment listing for a small cramped apartment in a mediocre part of town | Fully AI | Link |
| Write an extremely precise and thought out plan for an April Fools day prank that an AI company could play on it's users. Provide extremely detailed and precise instructions on how to carry out the prank | Fully AI | Link |
| Propose a detailed business plan for a fast-casual restaurant based on Moroccan cuisine that could scale up to become a unicorn | Fully AI | Link |
| Write a warm novel scene about a young pilot flying past the rings of Saturn for the first time | Fully AI | Link |
| Write a long, casual, but frustrated review for a news service that a user believes to be biased | Fully AI | Link |
| write a casual, laid-back, all lowercase/no emojis tweet thread about a revolutionary new room-temperature semiconductor | Fully AI | Link |
| write a sloppy casual engineering blog post about how google maintains their search rankings. | Fully AI | Link |
| write an essay how a middle schooler might about the war in iraq | Fully AI | Link |
| Write a short story about family at the 8th grade level | Fully AI | Link |
| Write a literary essay on Edgar Allan Poe’s “The Tell-Tale Heart” | Fully AI | Link |
| Write a 2,000 word analytical essay comparing the Industrial Revolution and the Neolithic Revolution | Fully AI | Link |
| Write a Yelp review for the Spaghetti Factory, and make it extremely casual | Fully AI | Link |
| Write a blog post about a newborn baby from the perspective of a first time mom | Fully AI | Link |
| Give me a recipe for clam chowder | Fully AI | Link |
| Write a college-level research abstract in the field of cell biology | Fully AI | Link |
| Give a one paragraph summary of Chapter 3 of “The Outsiders" | Fully AI | Link |
| Literary essay prompt about a character affected by a memory | Fully AI | Link |
| write a review about naya located at the brooklyn commons | Fully AI | Link |
| write a wiki how on choosing credit cards. use the usual wikihow format | Fully AI | Link |
| write a formal news article about the recent medical findings on dementia and alzheimers | Fully AI | Link |
| write a personal essay about your summer vacation (3rd grade level) | Fully AI | Link |
| write an amazon review about the new samsung phone | Fully AI | Link |
| write a banana bread recipe for a blog post. make it personal and sound as human as possible | Fully AI | Link |
| Write a blog for the financial times about a pressing economic issue in the usa | Fully AI | Link |
| write a very human sounding obituary about an uncle earl who you knew very dearly. uncle earl was in the military but he became a teacher in hyattsville maryland. uncle earl died at 83 in his sleep. | Fully AI | Link |
See the full texts at the following link: Pangram Gemini 3 Results
Conclusion
Pangram continues to be the market leader in detecting AI-generated text. In this experiment, we show that Pangram is robust to detecting new models, even Google's cutting-edge Gemini 3, right at the release date. This is because of our commitment to research and building a detection model that generalizes across Language Models and delivering you accurate results.
Special thanks to Destiny and Levi for their creative prompts and help in putting together this test!
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