Data points: 82
The readout for Gemini 2.5 Flash Lite and Gemini 2.5 Pro, before the detailed comparison sheet.
Decision read
Tie
Tie currently has the stronger profile, with verified wins split 3 to 3.
Evidence depth
82 data points
Includes 8 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Tie
The charts below split 18 high-signal samples across speed, scores, and audit health.
Model compare Gemini 2.5 Flash Lite vs Gemini 2.5 Progemini-2-5-flash-lite-vs-gemini-2-5-pro | Model A Gemini 2.5 Flash Lite | Model B Gemini 2.5 Pro |
|---|---|---|
| Overall leader | Tie | Tie |
| Verified metric wins | 3 wins | 3 wins |
| Where it leads | Average speed, First-token latency, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Gemini 2.5 Flash Lite | Gemini 2.5 Pro |
|---|---|---|
| Time to first answer token | 0.37 s#2 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 2.5 Flash Lite | 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 | Gemini 2.5 Flash Lite | Gemini 2.5 Pro |
|---|---|---|
35 tests | Gemini 2.5 Flash Lite speed / latency 235 tok/s / 2518ms input / output No data |
This report only uses LMSpeed data for Gemini 2.5 Flash Lite and Gemini 2.5 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 2.5 Flash Lite | Gemini 2.5 Pro |
|---|---|---|
| When to choose each model | Gemini 2.5 Flash Lite Gemini 2.5 Flash Lite is stronger when you prioritize Average speed, First-token latency, Recent tests. | Gemini 2.5 Pro Gemini 2.5 Pro is stronger when you prioritize Cheapest input price, Free providers, Provider coverage. |
TL;DR: Tie leads across 82 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 2.5 Flash Lite vs Gemini 2.5 Pro into nearby model comparisons with enough verified LMSpeed data.
| Cheapest input price, Free providers, Provider coverage |
| Model metadata | Gemini 2.5 Flash Lite exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. | Gemini 2.5 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. |
|---|---|---|
| Developer | ||
| Context window | 1.0M tokens | 1.0M tokens |
| Max output | 65.5K tokens | 65.5K tokens |
| Released | Sep 2025 | Jun 2025 |
| Modalities | Input TextImageFileAudiovideo Output Text | Input TextImageFileAudiovideo Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputAudio inputText outputTool calling |
| Parameters | No data | No data |
| Tokenizer | Gemini | Gemini |
| Knowledge cutoff | 2025-01-31 | 2025-01-31 |
| OpenRouter ID | google/gemini-2.5-flash-lite-preview-09-2025 | google/gemini-2.5-pro |
| References | No data | No data |
| Time to first token | 0.37 s#3 | 23.08 s#97 |
|---|
| AIME | 50.0%#25 | 88.7%#6 |
|---|
| Input price | $0.100/M#6 | $1.25/M#30 |
|---|
| Output price | $0.400/M#6 | $10.00/M#41 |
|---|
| Output speed | 229.0 tok/s#7 | 132.3 tok/s#36 |
|---|
| Blended price | $0.175/M#10 | $3.44/M#58 |
|---|
| MMLU-Pro | 72.4%#63 | 86.2%#12 |
|---|
Gemini 2.5 Pro
speed / latency
111 tok/s / 17899ms
input / output
No data
GankInterview LLM15 tests | Gemini 2.5 Flash Lite speed / latency 262 tok/s / 904ms input / output No data | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data |
|---|
N1N10 tests | Gemini 2.5 Flash Lite speed / latency 298 tok/s / 524ms input / output No data | Gemini 2.5 Pro speed / latency 106 tok/s / 16405ms input / output No data |
|---|
Vercel AI Gateway10 tests | Gemini 2.5 Flash Lite speed / latency 243 tok/s / 1113ms input / output No data | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data |
|---|
YUNWU API10 tests | Gemini 2.5 Flash Lite speed / latency 318 tok/s / 986ms input / output No data | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data |
|---|
Gemini 2.5 Flash Lite gemini-2.5-flash-lite speed / latency No data input / output $0.037/M / $0.150/M | Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.0006/M / $0.0050/M |
Gemini 2.5 Flash Lite gemini-2.5-flash-lite speed / latency No data input / output $0.037/M / $0.150/M | Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.0006/M / $0.0050/M |
Gemini 2.5 Flash Lite gemini-2.5-flash-lite speed / latency No data input / output $0.205/M / $0.822/M | Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.0034/M / $0.027/M |
Gemini 2.5 Flash Lite gemini-2.5-flash-lite-c speed / latency No data input / output $0.0035/M / $0.0035/M | Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $1.25/M / $10.00/M |
Gemini 2.5 Flash Lite gemini-2.5-flash-lite speed / latency No data input / output $0.0041/M / $0.016/M | Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.051/M / $0.411/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
