Data points: 78
The readout for Gemini 2.5 Pro and GPT-4, before the detailed comparison sheet.
Decision read
Gemini 2.5 Pro
Gemini 2.5 Pro currently has the stronger profile, with verified wins split 5 to 1.
Evidence depth
78 data points
Includes 6 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with Gemini 2.5 Pro
The charts below split 15 high-signal samples across speed, scores, and audit health.
Model compare Gemini 2.5 Pro vs GPT-4gemini-2-5-pro-vs-gpt-4 | Model A Gemini 2.5 Pro | Model B GPT-4 |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 5 wins | 1 wins |
| Where it leads | Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests | First-token latency |
| Model metadata | Gemini 2.5 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. | GPT-4 exposes 8.2K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. |
| Developer | OpenAI | |
| Context window | 1.0M tokens | 8.2K tokens |
| Max output | 65.5K tokens | 4.1K tokens |
| Released | Jun 2025 | May 2023 |
| Modalities | Input TextImageFileAudiovideo Output Text | Input Text Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | 2025-01-31 | 2021-09-30 |
| OpenRouter ID | google/gemini-2.5-pro | openai/gpt-4 |
| 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-4 |
|---|---|---|
| Time to first answer token | 23.08 s#77 | 1.07 s#25 |
| Input price | $1.25/M#30 | $30.00/M#46 |
| Output speed | 132.3 tok/s#36 | 39.3 tok/s#101 |
| Time to first token | 23.08 s#97 | 1.07 s#40 |
| Output price | $10.00/M#41 | $60.00/M#50 |
| Blended price | $3.44/M#58 | $37.50/M#75 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 2.5 Pro | GPT-4 |
|---|---|---|
| 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-4 |
|---|---|---|
DeepRouter5 tests | Gemini 2.5 Pro speed / latency 92 tok/s / 16347ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
N1N5 tests | Gemini 2.5 Pro speed / latency 106 tok/s / 16405ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
Rnglg2 API5 tests | Gemini 2.5 Pro speed / latency 111 tok/s / 17899ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
AASS API0 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
AI API0 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.014/M / $0.014/M | GPT-4 gpt-4-32k-0613 speed / latency No data input / output $8.22/M / $16.44/M | |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.051/M / $0.411/M | GPT-4 gpt-4-32k-0613 speed / latency No data input / output $2.47/M / $4.93/M | |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.086/M / $0.685/M | GPT-4 gpt-4 speed / latency No data input / output $2.05/M / $4.11/M | |
Gemini 2.5 Pro gemini-2.5-pro-preview-06-05 speed / latency No data input / output $0.171/M / $1.37/M | GPT-4 gpt-4-32k-0613 speed / latency No data input / output $8.22/M / $16.44/M |
This report only uses LMSpeed data for Gemini 2.5 Pro and GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 2.5 Pro | GPT-4 |
|---|---|---|
| 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, Recent tests. | GPT-4 GPT-4 is stronger when you prioritize First-token latency. |
TL;DR: Gemini 2.5 Pro leads across 78 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 2.5 Pro vs GPT-4 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.
