Data points: 97
Model compare
The readout for Gemini 3.1 Flash Lite and GPT-5.2, before the detailed comparison sheet.
Weighted outcome: GPT-5.2. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5.2
GPT-5.2 has the higher weighted result; Model A / B score 17.3 to 82.7.
Evidence depth
97 data points
Includes 14 benchmark rows, 1 audit samples, and 8 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 23 high-signal samples across speed, scores, and audit health.
Switch either side of this report to compare another model with the same LMSpeed data pipeline.
Select a different model to open a new comparison URL.
This report only uses LMSpeed data for Gemini 3.1 Flash Lite and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 3.1 Flash Lite | GPT-5.2 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 17.3 pts | 82.7 pts |
| Benchmark category leads | 1 categories | 5 categories |
| Operational advantages | Average speed | Cheapest input price, First-token latency, Free providers, Provider coverage |
| Context window | 1.0M tokens | 400K tokens |
| Max output | 65.5K tokens | 128K tokens |
| Modalities | Input TextImagevideoFileAudio |
The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.
| Model compare | Gemini 3.1 Flash Lite | GPT-5.2 |
|---|---|---|
| Developer | OpenAI | |
| Released | May 2026 | Dec 2025 |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | google/gemini-3.1-flash-lite | openai/gpt-5.2 |
| References | No data | No data |
This report only uses LMSpeed data for Gemini 3.1 Flash Lite and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Gemini 3.1 Flash Lite
Gemini 3.1 Flash Lite is stronger in benchmark categories (Instruction following) and operational dimensions (Average speed).
GPT-5.2
GPT-5.2 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Multimodal) and operational dimensions (Cheapest input price, First-token latency, Free providers, Provider coverage).
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
Avg. score
Gemini 3.1 Flash Lite
46.7
Avg. score
GPT-5.2
52.9
GPT-5.2 leads by 5.7
GPT-5.2 leads by 15.7
GPT-5.2 leads by 1.9
GPT-5.2 leads by 8.4
GPT-5.2
No data
GPT-5.2 leads by 3.3
Gemini 3.1 Flash Lite leads by 0.8
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 3.1 Flash Lite
winner55.0
Rank #47/84 · confidence 1 · eval date 2026-03-03
GPT-5.2
53.0
Rank #50/84 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
65.3
Rank #44/89 · confidence 1 · eval date 2026-03-03
GPT-5.2
winner72.7
Rank #13/89 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
1.1
Rank #54/73 · confidence 1 · eval date 2026-03-03
GPT-5.2
winner11.6
Rank #20/73 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
41.9
Rank #51/96 · confidence 1 · eval date 2026-03-03
GPT-5.2
winner52.1
Rank #18/96 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
36.4
Rank #34/90 · confidence 1 · eval date 2026-03-03
GPT-5.2
winner43.8
Rank #16/90 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
82.2
Rank #55/96 · confidence 1 · eval date 2026-03-03
GPT-5.2
winner90.3
Rank #19/96 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
16.2
Rank #58/96 · confidence 1 · eval date 2026-03-03
GPT-5.2
winner35.4
Rank #21/96 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
25.0
Rank #65/99 · confidence 1 · eval date 2026-03-03
GPT-5.2
winner42.2
Rank #22/99 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
winner81.6
Rank #34/90 · confidence 1 · eval date 2026-03-03
GPT-5.2
79.7
Rank #39/90 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
73.2
Rank #19/22 · confidence 1 · eval date 2026-03-03
GPT-5.2
winner82.1
Rank #8/22 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
48.9
Rank #30/35 · confidence 1 · eval date 2026-03-03
GPT-5.2
winner70.3
Rank #11/35 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
winner77.2
Rank #9/86 · confidence 1 · eval date 2026-03-03
GPT-5.2
75.4
Rank #21/86 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
38.5
Rank #41/50 · confidence 1 · eval date 2026-03-03
GPT-5.2
winner46.5
Rank #29/50 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Flash Lite
31.3
Rank #73/84 · confidence 1 · eval date 2026-03-03
GPT-5.2
winner84.8
Rank #44/84 · confidence 3 · eval date 2025-12-11
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 3.1 Flash Lite | GPT-5.2 |
|---|---|---|
Winner: Gemini 3.1 Flash Lite | Gemini 3.1 Flash Lite gemini-3.1-flash-lite Audit score 89 1006886100 | GPT-5.2 gpt-5.2-2025-12-11 No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Gemini 3.1 Flash Lite | GPT-5.2 |
|---|---|---|
20 tests | Gemini 3.1 Flash Lite speed / latency 218 tok/s / 4094ms input / output No data | GPT-5.2 speed / latency 71 tok/s / 2893ms input / output No data |
15 tests | Gemini 3.1 Flash Lite speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
10 tests | Gemini 3.1 Flash Lite speed / latency 179 tok/s / 1599ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
5 tests | Gemini 3.1 Flash Lite speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 64 tok/s / 5256ms input / output No data |
5 tests | Gemini 3.1 Flash Lite speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 55 tok/s / 1434ms input / output No data |
Gemini 3.1 Flash Lite gemini-3.1-flash-lite-preview speed / latency No data input / output $0/request | GPT-5.2 gpt-5-2 speed / latency No data input / output $0.080/request | |
Gemini 3.1 Flash Lite gemini-3.1-flash-lite speed / latency No data input / output $0/M/$0/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0/M | |
Gemini 3.1 Flash Lite gemini-3.1-flash-lite-preview speed / latency No data input / output $0/request | GPT-5.2 gpt-5.2 speed / latency No data input / output $0/request |
Weighted outcome: GPT-5.2. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
Input FileImageText Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
