Data points: 87
The readout for Gemini 2.5 Pro and GPT-4o, before the detailed comparison sheet.
Decision read
Gemini 2.5 Pro
Gemini 2.5 Pro currently has the stronger profile, with verified wins split 4 to 2.
Evidence depth
87 data points
Includes 8 benchmark rows, 1 audit samples, and 9 provider examples.
Selection signal
Start with Gemini 2.5 Pro
The charts below split 18 high-signal samples across speed, scores, and audit health.
Model compare Gemini 2.5 Pro vs GPT-4ogemini-2-5-pro-vs-gpt-4o | Model A Gemini 2.5 Pro | Model B GPT-4o |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 2 wins |
| Where it leads | Cheapest input price, Average speed, Free providers, Provider coverage |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Gemini 2.5 Pro | GPT-4o |
|---|---|---|
| AIME | 88.7%#6 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 2.5 Pro | GPT-4o |
|---|---|---|
Winner: GPT-4o | Gemini 2.5 Pro gemini-2.5-pro No audit yet | GPT-4o gpt-4o |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Gemini 2.5 Pro | GPT-4o |
|---|---|---|
40 tests | Gemini 2.5 Pro speed / latency 48 tok/s / 23637ms input / output No data |
This report only uses LMSpeed data for Gemini 2.5 Pro and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 2.5 Pro | GPT-4o |
|---|---|---|
| When to choose each model | Gemini 2.5 Pro Gemini 2.5 Pro is stronger when you prioritize Cheapest input price, Average speed, Free providers, Provider coverage. | GPT-4o GPT-4o is stronger when you prioritize First-token latency, Recent tests. |
TL;DR: Gemini 2.5 Pro leads across 87 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 2.5 Pro vs GPT-4o into nearby model comparisons with enough verified LMSpeed data.
| First-token latency, Recent tests |
| Model metadata | Gemini 2.5 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. | GPT-4o 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 | Nov 2024 |
| Modalities | Input TextImageFileAudiovideo Output Text | Input TextImageFile Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputs |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | 2025-01-31 | 2023-10-31 |
| OpenRouter ID | google/gemini-2.5-pro | openai/gpt-4o-2024-11-20 |
| References | No data | No data |
| Time to first answer token | 23.08 s#77 | 0.51 s#8 |
|---|
| Time to first token | 23.08 s#97 | 0.51 s#11 |
|---|
| MMLU-Pro | 86.2%#12 | 74.8%#58 |
|---|
| MATH-500 | 96.7%#16 | 75.9%#47 |
|---|
| LiveCodeBench | 80.1%#18 | 30.9%#78 |
|---|
| Input price | $1.25/M#30 | $2.50/M#37 |
|---|
| SciCode | 42.8%#32 | 33.3%#82 |
|---|
Audit score
76
GPT-4o
speed / latency
57 tok/s / 3381ms
input / output
No data
MN API20 tests | Gemini 2.5 Pro speed / latency 103 tok/s / 16912ms input / output No data | GPT-4o speed / latency 99 tok/s / 2367ms input / output No data |
|---|
速创API20 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 88 tok/s / 1593ms input / output No data |
|---|
DeepRouter5 tests | Gemini 2.5 Pro speed / latency 92 tok/s / 16347ms input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
|---|
KFCV505 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 48 tok/s / 13138ms 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-4o gpt-4o speed / latency No data input / output $0.0013/M / $0.0050/M |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.0006/M / $0.0050/M | GPT-4o gpt-4o speed / latency No data input / output $0.0013/M / $0.0050/M |
Gemini 2.5 Pro gemini-2.5-pro-maxthinking-c speed / latency No data input / output $0.011/M / $0.011/M | GPT-4o gpt-4o speed / latency No data input / output $0.342/M / $1.37/M |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.014/M / $0.904/M | GPT-4o gpt-4o speed / latency No data input / output $0.068/M / $0.349/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
