Data points: 60
The readout for Gemini 1.5 Pro and GPT-5.4, before the detailed comparison sheet.
Decision read
GPT-5.4
GPT-5.4 currently has the stronger profile, with verified wins split 0 to 4.
Evidence depth
60 data points
Includes 3 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 11 high-signal samples across speed, scores, and audit health.
Model compare Gemini 1.5 Pro vs GPT-5.4gemini-1-5-pro-vs-gpt-5-4 | Model A Gemini 1.5 Pro | Model B GPT-5.4 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 0 wins | 4 wins |
| Where it leads | No data | Cheapest input price, Free providers, Provider coverage, Recent tests |
| Model metadata | No OpenRouter metadata is available yet for this model. | GPT-5.4 exposes 1.1M tokens; notable signals: Text input, Image input, File input, Text output. |
| Developer | OpenAI | |
| Context window | No data | 1.1M tokens |
| Max output | No data | 128K tokens |
| Released | No data | Mar 2026 |
| Modalities | No data | Input TextImageFile Output Text |
| Features | None listed | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | No data | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | No data | openai/gpt-5.4 |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Gemini 1.5 Pro | GPT-5.4 |
|---|---|---|
| GPQA | 58.9%#105 | 92.0%#3 |
| SciCode | 29.5%#92 | 56.6%#3 |
| HLE | 4.9%#88 | 41.6%#4 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 1.5 Pro | GPT-5.4 |
|---|---|---|
| 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 1.5 Pro | GPT-5.4 |
|---|---|---|
UoCode5 tests | Gemini 1.5 Pro models/gemini-1.5-pro speed / latency N/A / N/A input / output $0.014/M / $0.137/M | GPT-5.4 gpt-5.4-openai-compact speed / latency 31 tok/s / 2364ms input / output $10.27/M / $61.64/M |
天絮 API5 tests | Gemini 1.5 Pro speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 46 tok/s / 3291ms input / output No data |
速创API5 tests | Gemini 1.5 Pro speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 50 tok/s / 1423ms input / output No data |
AIGCBAR0 tests | Gemini 1.5 Pro speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency N/A / N/A input / output No data |
AIO通用智能服务平台0 tests | Gemini 1.5 Pro speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency N/A / N/A input / output No data |
Gemini 1.5 Pro models/gemini-1.5-pro speed / latency No data input / output $0.014/M / $0.137/M | GPT-5.4 gpt-5.4-openai-compact speed / latency No data input / output $10.27/M / $61.64/M | |
Gemini 1.5 Pro gemini-1.5-pro-latest speed / latency No data input / output $0.017/M / $0.068/M | GPT-5.4 gpt-5.4-xhigh speed / latency No data input / output $0.034/M / $0.205/M | |
Gemini 1.5 Pro gemini-1.5-pro speed / latency No data input / output $0.020/M / $0.080/M | GPT-5.4 gpt-5.4 speed / latency No data input / output $0.020/M / $0.120/M |
This report only uses LMSpeed data for Gemini 1.5 Pro and GPT-5.4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 1.5 Pro | GPT-5.4 |
|---|---|---|
| When to choose each model | Gemini 1.5 Pro Gemini 1.5 Pro does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. | GPT-5.4 GPT-5.4 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. |
TL;DR: GPT-5.4 leads across 60 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 1.5 Pro vs GPT-5.4 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.
