Gemini 2.5 Flash Lite Preview 09-2025 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 Flash Lite Preview 09-2025 if you need
- ✓Choose GPT-5.2 if you need maximum intelligence for complex multimodal reasoning at 46.6 index.
- ✓Choose GPT-5.2 if you need scalable document-level analysis of files, images, and text.
- ✓Choose GPT-5.2 if you need unified multimodal processing without audio or video requirements.
- ✓Choose GPT-5.2 if you need OpenAI's proprietary ecosystem for extensive 400k context tasks.
Choose GPT-5.2 if you need
- ✓Choose Gemini 2.5 Flash Lite Preview 09-2025 if you need the lowest price at $0.4 per 1M tokens.
- ✓Choose Gemini 2.5 Flash Lite Preview 09-2025 if you need native audio and video alongside text and images.
- ✓Choose Gemini 2.5 Flash Lite Preview 09-2025 if you need the largest context window of 1,048,576 tokens.
- ✓Choose Gemini 2.5 Flash Lite Preview 09-2025 if you need lightweight, high-volume deployment optimized for speed.
Verdict
GPT-5.2 leads decisively on intelligence (46.6 vs 19.4) and unified document-scale multimodal processing, while Gemini 2.5 Flash Lite Preview 09-2025 dominates on price ($0.4 vs $14 per 1M tokens) and native support for audio/video alongside its larger 1M context. GPT-5.2 suits complex file and image analysis; Gemini targets high-volume, low-latency workloads. Neither reports output speed, leaving latency claims unverified.
Gemini 2.5 Flash Lite Preview 09-2025 vs GPT-5.2: side by side
| Spec | Gemini 2.5 Flash Lite Preview 09-2025 | GPT-5.2 | Winner |
|---|---|---|---|
| Intelligence | 19.4 | 46.6 | GPT-5.2 |
| Output speed | — | — | Tie |
| Output price | $0.40/1M | $14.00/1M | Gemini 2.5 Flash Lite Preview 09-2025 |
| Context | 1049K | 400K | Gemini 2.5 Flash Lite Preview 09-2025 |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | OpenAI | Tie |
Detailed analysis
Intelligence
Winner: GPT-5.2GPT-5.2 scores 46.6 on the intelligence index compared to Gemini's 19.4. This gap indicates stronger performance on advanced reasoning and analysis tasks. Gemini's lite design explicitly trades off some reasoning depth.
Pricing
Winner: Gemini 2.5 Flash Lite Preview 09-2025Gemini costs $0.4 per 1M output tokens versus GPT-5.2 at $14 per 1M. The 35x price difference favors Gemini for high-volume usage. Both are proprietary models from major providers.
Context & Multimodality
Winner: Gemini 2.5 Flash Lite Preview 09-2025Gemini offers 1,048,576 context tokens and native audio/video support, exceeding GPT-5.2's 400,000 context and file/image/text-only modalities. GPT-5.2 provides unified processing suited to document-scale tasks but lacks native audio or video.
Limitations
Winner: TieGPT-5.2 risks diluted focus in long inputs and high resource use at max context. Gemini may show inconsistent preview behavior and reduced capability depth. Both have unknown parameters and output speeds.
Gemini 2.5 Flash Lite Preview 09-2025
Pros
- +Optimized for speed and low latency
- +Handles very large context windows
- +Broad native multimodal support
- +Lightweight deployment suitable for high-volume use
Cons
- –Preview model may show inconsistent behavior
- –Reduced capability depth versus full Gemini variants
- –Lite design trades off some advanced reasoning performance
GPT-5.2
Pros
- +Extensive context window
- +Support for files, images, and text
- +Unified multimodal processing
- +Scalable document-level analysis
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 Flash Lite Preview 09-2025 vs GPT-5.2
Select GPT-5.2 for high-intelligence document and image work where budget allows. Choose Gemini 2.5 Flash Lite Preview 09-2025 for cost-efficient, broad-modality applications with very large contexts. The intelligence-price tradeoff is the clearest differentiator based on available metrics.
Frequently asked questions
GPT-5.2 is better for intelligence-heavy tasks while Gemini 2.5 Flash Lite Preview 09-2025 is better for cost and multimodal breadth; choice depends on specific needs.