Data points: 80
The readout for Gemini 3 Flash and GPT-5.2, before the detailed comparison sheet.
Decision read
Gemini 3 Flash
Gemini 3 Flash currently has the stronger profile, with verified wins split 4 to 2.
Evidence depth
80 data points
Includes 8 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with Gemini 3 Flash
The charts below split 18 high-signal samples across speed, scores, and audit health.
Model compare Gemini 3 Flash vs GPT-5.2gemini-3-flash-vs-gpt-5-2 | Model A Gemini 3 Flash | Model B GPT-5.2 |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 2 wins |
| Where it leads | Cheapest input price, Average speed, Free providers, Recent tests | First-token latency, Provider coverage |
| Model metadata | Gemini 3 Flash exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. | GPT-5.2 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. |
| Developer | OpenAI | |
| Context window | 1.0M tokens | 128K tokens |
| Max output | 65.5K tokens | 16.4K tokens |
| Released | Dec 2025 | Dec 2025 |
| Modalities | Input TextImageFileAudiovideo Output Text | Input FileImageText Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | google/gemini-3-flash-preview | openai/gpt-5.2-chat |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Gemini 3 Flash | GPT-5.2 |
|---|---|---|
| LiveCodeBench | 79.7%#19 | 88.9%#4 |
| MMLU-Pro | 88.2%#4 | 87.4%#6 |
| GPQA | 81.2%#52 | 90.3%#9 |
| HLE | 14.1%#55 | 35.4%#9 |
| SciCode | 49.9%#13 | 52.1%#9 |
| Output speed | 190.4 tok/s#14 | 72.8 tok/s#71 |
| Input price | $0.500/M#18 | $1.75/M#35 |
| Output price | $3.00/M#28 | $14.00/M#43 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 3 Flash | GPT-5.2 |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Gemini 3 Flash | GPT-5.2 |
|---|---|---|
N1N35 tests | Gemini 3 Flash speed / latency 157 tok/s / 7994ms input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
CatClaw API30 tests | Gemini 3 Flash speed / latency 129 tok/s / 10293ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
Rnglg2 API15 tests | Gemini 3 Flash speed / latency 160 tok/s / 6933ms input / output No data | GPT-5.2 speed / latency 55 tok/s / 1434ms input / output No data |
A310 tests | Gemini 3 Flash speed / latency 162 tok/s / 5569ms input / output No data | GPT-5.2 speed / latency 45 tok/s / 1716ms input / output No data |
Hi API10 tests | Gemini 3 Flash speed / latency 118 tok/s / 9594ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
Gemini 3 Flash google/gemini-3-flash speed / latency No data input / output $0/M / $0/M | GPT-5.2 gpt-5.2-openai-compact speed / latency No data input / output $75.00/M / $600.00/M | |
Gemini 3 Flash gemini-3-flash-preview-c speed / latency No data input / output $0.0050/M / $0.0050/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.300/M / $2.40/M | |
Gemini 3 Flash gemini-3-flash-preview群友免费 speed / latency No data input / output $0.0060/M / $0.0060/M | GPT-5.2 gpt-5-2 speed / latency No data input / output $0.080/M / $0.080/M | |
Gemini 3 Flash gemini-3-flash-preview speed / latency No data input / output $0.0096/M / $0.059/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.034/M / $0.274/M | |
Gemini 3 Flash gemini-3-flash speed / latency No data input / output $0.014/M / $0.082/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.240/M / $1.92/M |
This report only uses LMSpeed data for Gemini 3 Flash and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 3 Flash | GPT-5.2 |
|---|---|---|
| When to choose each model | Gemini 3 Flash Gemini 3 Flash is stronger when you prioritize Cheapest input price, Average speed, Free providers, Recent tests. | GPT-5.2 GPT-5.2 is stronger when you prioritize First-token latency, Provider coverage. |
TL;DR: Gemini 3 Flash leads across 80 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 3 Flash vs GPT-5.2 into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
