Gemini 2.5 Pro vs GPT-5.2
A side-by-side comparison of two multimodal models — real specs, pricing, strengths and weaknesses, and a clear verdict on which to choose. Kept current by our agents.
Quick verdict: which should you choose?
Choose Gemini 2.5 Pro if you need
- ✓Choose GPT-5.2 if you need higher intelligence_index of 38 for complex reasoning tasks.
- ✓Choose GPT-5.2 if you need unified multimodal processing focused on files, images, and text.
- ✓Choose GPT-5.2 if you need scalable document-level analysis within a 400,000-token context.
- ✓Choose GPT-5.2 if you need OpenAI provider access for proprietary large-scale tasks.
Choose GPT-5.2 if you need
- ✓Choose Gemini 2.5 Pro if you need the larger 1,048,576-token context window.
- ✓Choose Gemini 2.5 Pro if you need native support for multiple modalities including audio and visual data.
- ✓Choose Gemini 2.5 Pro if you need faster output speed of 133.2 t/s and lower $10/1M pricing.
- ✓Choose Gemini 2.5 Pro if you need effective handling of complex multi-part files with text-visual-audio integration.
Verdict
GPT-5.2 leads with a higher intelligence_index of 38 versus Gemini 2.5 Pro's 25.8 and offers unified processing for files, images, and text, while Gemini 2.5 Pro provides a larger 1,048,576-token context, native multi-modality support including audio, faster output at 133.2 t/s, and lower $10/1M pricing. GPT-5.2 suits scalable document analysis within its 400,000-token window, but Gemini handles extended multimodal inputs more effectively despite potential latency. The choice hinges on whether intelligence and OpenAI ecosystem matter more than raw context size and speed.
Gemini 2.5 Pro vs GPT-5.2: side by side
| Spec | Gemini 2.5 Pro | GPT-5.2 | Winner |
|---|---|---|---|
| Intelligence | 25.8 | 38 | GPT-5.2 |
| Output speed | 133 t/s | — | Tie |
| Output price | $10.00/1M | $14.00/1M | Gemini 2.5 Pro |
| Context | 1049K | 400K | Gemini 2.5 Pro |
| Params | — | — | Tie |
| Provider | OpenAI | Tie |
Detailed analysis
Intelligence
Winner: GPT-5.2GPT-5.2 scores 38 on intelligence_index compared to Gemini 2.5 Pro's 25.8. This gives GPT-5.2 an edge in tasks requiring advanced reasoning. Both remain proprietary models with unknown parameter counts.
Context Window
Winner: Gemini 2.5 ProGemini 2.5 Pro offers 1,048,576 tokens versus GPT-5.2's 400,000. This supports longer inputs for Gemini. GPT-5.2 notes risk of diluted focus in very long contexts while Gemini performance can vary with extremely long ones.
Pricing and Speed
Winner: Gemini 2.5 ProGemini 2.5 Pro costs $10/1M tokens and runs at 133.2 t/s. GPT-5.2 costs $14/1M with unknown speed. Gemini provides clearer efficiency advantages on these metrics.
Modalities
Winner: Gemini 2.5 ProGemini 2.5 Pro provides native support for multiple modalities with strong text-visual-audio integration. GPT-5.2 supports files, images, and text but lacks native audio or video. Both handle multimodal inputs but Gemini integrates more media types.
Gemini 2.5 Pro
Pros
- +Very large context window for extended inputs
- +Native support for multiple modalities in one model
- +Strong integration of text with visual and audio data
Cons
- –Higher latency on very large multimodal inputs
- –Performance can vary with extremely long contexts
- –Dependent on Google infrastructure for access
GPT-5.2
Pros
- +Extensive context window
- +Support for files, images, and text
- +Unified multimodal processing
Cons
- –High resource use with maximum context
- –No native audio or video modalities
- –Risk of diluted focus in very long inputs
Summary: Gemini 2.5 Pro vs GPT-5.2
Select GPT-5.2 for higher intelligence and OpenAI-based document analysis needs. Choose Gemini 2.5 Pro for larger context, native audio support, speed, and lower cost. The facts favor Gemini on most practical multimodal dimensions except raw intelligence score.
Frequently asked questions
GPT-5.2 leads with an intelligence_index of 38 compared to Gemini 2.5 Pro's 25.8.