Data points: 81
The readout for Gemini 2.5 Pro and GPT-5.2, before the detailed comparison sheet.
Decision read
GPT-5.2
GPT-5.2 currently has the stronger profile, with verified wins split 1 to 4.
Evidence depth
81 data points
Includes 8 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 18 high-signal samples across speed, scores, and audit health.
Model compare Gemini 2.5 Pro vs GPT-5.2gemini-2-5-pro-vs-gpt-5-2 | Model A Gemini 2.5 Pro | Model B GPT-5.2 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 1 wins | 4 wins |
| Where it leads | Average speed | Cheapest input price, First-token latency, Provider coverage, Recent tests |
| Model metadata | Gemini 2.5 Pro 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 | Jun 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 | 2025-01-31 | No data |
| OpenRouter ID | google/gemini-2.5-pro | 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 2.5 Pro | GPT-5.2 |
|---|---|---|
| LiveCodeBench | 80.1%#18 | 88.9%#4 |
| MMLU-Pro | 86.2%#12 | 87.4%#6 |
| GPQA | 84.4%#36 | 90.3%#9 |
| HLE | 21.1%#37 | 35.4%#9 |
| SciCode | 42.8%#32 | 52.1%#9 |
| Input price | $1.25/M#30 | $1.75/M#35 |
| Output speed | 132.3 tok/s#36 | 72.8 tok/s#71 |
| Output price | $10.00/M#41 | $14.00/M#43 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 2.5 Pro | 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 2.5 Pro | GPT-5.2 |
|---|---|---|
CatClaw API30 tests | Gemini 2.5 Pro speed / latency 48 tok/s / 23637ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
N1N20 tests | Gemini 2.5 Pro speed / latency 106 tok/s / 16405ms input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
ModelPool10 tests | Gemini 2.5 Pro speed / latency 81 tok/s / 21179ms input / output No data | GPT-5.2 speed / latency 64 tok/s / 5256ms input / output No data |
PackyAPI10 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 94 tok/s / 11492ms input / output No data |
Rnglg2 API10 tests | Gemini 2.5 Pro speed / latency 111 tok/s / 17899ms input / output No data | GPT-5.2 speed / latency 55 tok/s / 1434ms input / output No data |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.0006/M / $0.0050/M | GPT-5.2 gpt-5.2-chat speed / latency No data input / output $0.037/M / $0.300/M | |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.0006/M / $0.0050/M | GPT-5.2 gpt-5.2-chat speed / latency No data input / output $0.037/M / $0.300/M | |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.014/M / $0.904/M | GPT-5.2 gpt-5.2(xhigh) speed / latency No data input / output $0.041/M / $0.329/M | |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.014/M / $0.014/M | GPT-5.2 gpt-5.2-openai-compact speed / latency No data input / output $10.27/M / $10.27/M | |
Gemini 2.5 Pro gemini-2.5-pro-c speed / latency No data input / output $0.018/M / $0.018/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.300/M / $2.40/M |
This report only uses LMSpeed data for Gemini 2.5 Pro and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 2.5 Pro | GPT-5.2 |
|---|---|---|
| When to choose each model | Gemini 2.5 Pro Gemini 2.5 Pro is stronger when you prioritize Average speed. | GPT-5.2 GPT-5.2 is stronger when you prioritize Cheapest input price, First-token latency, Provider coverage, Recent tests. |
TL;DR: GPT-5.2 leads across 81 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 2.5 Pro 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.
