Data points: 57
The readout for ChatGPT-4o and Gemini 2.5 Pro, before the detailed comparison sheet.
Decision read
Gemini 2.5 Pro
Gemini 2.5 Pro currently has the stronger profile, with verified wins split 1 to 5.
Evidence depth
57 data points
Includes 0 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with Gemini 2.5 Pro
The charts below split 10 high-signal samples across speed, scores, and audit health.
Model compare ChatGPT-4o vs Gemini 2.5 Prochatgpt-4o-vs-gemini-2-5-pro | Model A ChatGPT-4o | Model B Gemini 2.5 Pro |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 1 wins | 5 wins |
| Where it leads | First-token latency | Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | ChatGPT-4o | Gemini 2.5 Pro |
|---|---|---|
| No shared benchmark metrics are available yet. | ||
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | ChatGPT-4o | Gemini 2.5 Pro |
|---|---|---|
| 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 | ChatGPT-4o | Gemini 2.5 Pro |
|---|---|---|
23 tests | ChatGPT-4o speed / latency 76 tok/s / 4656ms input / output No data |
This report only uses LMSpeed data for ChatGPT-4o and Gemini 2.5 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | ChatGPT-4o | Gemini 2.5 Pro |
|---|---|---|
| When to choose each model | ChatGPT-4o ChatGPT-4o is stronger when you prioritize First-token latency. | Gemini 2.5 Pro Gemini 2.5 Pro is stronger when you prioritize Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests. |
TL;DR: Gemini 2.5 Pro leads across 57 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from ChatGPT-4o vs Gemini 2.5 Pro into nearby model comparisons with enough verified LMSpeed data.
| Model metadata | No OpenRouter metadata is available yet for this model. | Gemini 2.5 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. |
|---|---|---|
| Developer | OpenAI | |
| Context window | No data | 1.0M tokens |
| Max output | No data | 65.5K tokens |
| Released | No data | Jun 2025 |
| Modalities | No data | Input TextImageFileAudiovideo Output Text |
| Features | None listed | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | No data | Gemini |
| Knowledge cutoff | No data | 2025-01-31 |
| OpenRouter ID | No data | google/gemini-2.5-pro |
| References | No data | No data |
Gemini 2.5 Pro
speed / latency
N/A / N/A
input / output
No data
DeepRouter5 tests | ChatGPT-4o speed / latency N/A / N/A input / output No data | Gemini 2.5 Pro speed / latency 92 tok/s / 16347ms input / output No data |
|---|
毫秒API2 tests | ChatGPT-4o speed / latency 101 tok/s / 3469ms input / output No data | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data |
|---|
AAAI0 tests | ChatGPT-4o speed / latency N/A / N/A input / output No data | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data |
|---|
AASS API0 tests | ChatGPT-4o speed / latency N/A / N/A input / output No data | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data |
|---|
ChatGPT-4o chatgpt-4o-latest speed / latency No data input / output $0.012/M / $0.012/M | Gemini 2.5 Pro gemini-2.5-pro-as speed / latency No data input / output $15.41/M / $123.29/M |
ChatGPT-4o chatgpt-4o-latest speed / latency No data input / output $0.016/M / $0.016/M | Gemini 2.5 Pro gemini-2.5-pro-as speed / latency No data input / output $20.55/M / $164.38/M |
ChatGPT-4o chatgpt-4o-latest speed / latency No data input / output $0.685/M / $2.05/M | Gemini 2.5 Pro gemini-2.5-pro-preview-06-05 speed / latency No data input / output $0.171/M / $1.37/M |
ChatGPT-4o chatgpt-4o-latest speed / latency No data input / output $0.685/M / $2.05/M | Gemini 2.5 Pro gemini-2.5-pro-nothinking speed / latency No data input / output $0.171/M / $1.37/M |
ChatGPT-4o chatgpt-4o-latest speed / latency No data input / output $0.685/M / $2.05/M | Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.342/M / $2.74/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
