Comparing GPT-5.2 and Gemini 3: Key Differences and Performance
OpenAI has recently launched its latest AI model, GPT-5.2, marking a significant step in the ongoing rivalry with Google’s Gemini 3. Released on a Thursday, GPT-5.2 is currently available to paid ChatGPT customers, with broader access planned for the near future. This rollout comes amid increased scrutiny and competition, highlighted by a memo from CEO Sam Altman that indicated a “code red” status at OpenAI.
Comparing GPT-5.2 and Gemini 3: Key Differences
Since the introduction of Gemini 3, Google claims its model is outperforming competitors across multiple benchmark tests. A recent post suggested that in the two weeks after Gemini 3’s release, OpenAI experienced a decline of almost 6% in visitor traffic.
Performance Benchmarking
Both GPT-5.2 and Gemini 3 appear competitive in benchmark performance, but they excel in different areas. OpenAI asserts that GPT-5.2 outperforms in “professional knowledge work,” which includes tasks such as:
- Creating spreadsheets
- Building presentations
- Writing code
- Perceiving images
- Understanding long contexts
- Handling complex projects
On LMArena’s leaderboards, the web development capabilities of GPT-5.2 have shown promise, securing second place overall, while Gemini 3 Pro is positioned fourth. However, GPT-5.2, in its early days, remains unranked in other categories.
Benchmark Test Results
While independent verification of the reported benchmark results is ongoing, preliminary data reveals mixed performance between the two models:
| Model | SWE-bench | Humanity’s Last Exam | GPQA Diamond | AIME 2025 | MMMLU |
|---|---|---|---|---|---|
| Gemini 3 | 76.2% | 37.5% | 91.9% | 95.0% | 91.8% |
| GPT-5.2 | 80.0% | 34.5% | 92.4% | 100.0% | 89.6% |
Features and Accessibility
Both GPT-5.2 and Gemini 3 come as model series integrated within different platforms. Gemini 3 has a broader scope, allowing users to create videos and images directly, whereas GPT-5.2 necessitates additional applications for certain features. Google’s Gemini 3 advantage lies in its integration into diverse products, which includes:
- Google AI Mode
- Google AI Studio projects
- NotebookLM tools
This broader accessibility may give Gemini 3 an edge over GPT-5.2, regardless of potential performance advantages held by OpenAI’s model.
Pricing Comparisons
From a pricing standpoint, both models are competitively priced. Access to GPT-5.2 is available through OpenAI’s ChatGPT Plus plan for $20 per month. Similarly, Google offers its AI Pro plan at the same rate. For more extensive usage, OpenAI’s Pro plan costs $200 per month, while Google’s Ultra plan is priced at $249.99 per month.
In conclusion, users are encouraged to explore both AI models to determine which fits their specific needs. As these technologies evolve, ongoing comparisons will illuminate their respective strengths and weaknesses in the rapidly advancing AI landscape.
