Data points: 119
Model compare
The readout for Gemini 3.1 Pro and GPT-5.2, before the detailed comparison sheet.
Weighted outcome: Gemini 3.1 Pro. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Gemini 3.1 Pro
Gemini 3.1 Pro has the higher weighted result; Model A / B score 72.6 to 27.4.
Evidence depth
119 data points
Includes 25 benchmark rows, 1 audit samples, and 7 provider examples.
Selection signal
Start with Gemini 3.1 Pro
The charts below split 33 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 Pro and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 3.1 Pro | GPT-5.2 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 72.6 pts | 27.4 pts |
| Benchmark category leads | 6 categories | 1 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 AudioFileImageTextvideo |
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 Pro | GPT-5.2 |
|---|---|---|
| Developer | OpenAI | |
| Released | Feb 2026 | Dec 2025 |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | google/gemini-3.1-pro-preview | openai/gpt-5.2 |
| References | No data | No data |
This report only uses LMSpeed data for Gemini 3.1 Pro and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Gemini 3.1 Pro
Gemini 3.1 Pro is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Multimodal) and operational dimensions (Average speed).
GPT-5.2
GPT-5.2 is stronger in benchmark categories (Math) 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 Pro
56.6
Avg. score
GPT-5.2
52.9
Gemini 3.1 Pro leads by 2.6
Gemini 3.1 Pro leads by 2.7
Gemini 3.1 Pro leads by 3.7
Gemini 3.1 Pro leads by 0.9
GPT-5.2 leads by 0.6
Gemini 3.1 Pro
Gemini 3.1 Pro leads by 13.2
Gemini 3.1 Pro leads by 0.7
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 3.1 Pro
winner71.0
Rank #12/84 · confidence 3 · eval date 2026-02-19
GPT-5.2
53.0
Rank #50/84 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner77.1
Rank #5/15 · confidence 3 · eval date 2026-02-19
GPT-5.2
52.9
Rank #12/15 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner81.5
Rank #11/25 · confidence 3 · eval date 2026-02-19
GPT-5.2
61.4
Rank #22/25 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner17.7
Rank #12/73 · confidence 3 · eval date 2026-02-19
GPT-5.2
11.6
Rank #20/73 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
72.7
Rank #13/89 · confidence 3 · eval date 2026-02-19
GPT-5.2
72.7
Rank #13/89 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner58.9
Rank #2/96 · confidence 3 · eval date 2026-02-19
GPT-5.2
52.1
Rank #18/96 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
32.0
Rank #13/33 · confidence 3 · eval date 2026-02-19
GPT-5.2
winner53.5
Rank #6/33 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner61.4
Rank #14/65 · confidence 3 · eval date 2026-02-19
GPT-5.2
52.2
Rank #34/65 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
36.9
Rank #15/47 · confidence 3 · eval date 2026-02-19
GPT-5.2
winner40.7
Rank #10/47 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
16.7
Rank #13/35 · confidence 3 · eval date 2026-02-19
GPT-5.2
winner18.8
Rank #11/35 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
55.2
Rank #28/56 · confidence 3 · eval date 2026-02-19
GPT-5.2
winner58.5
Rank #24/56 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner94.1
Rank #1/96 · confidence 3 · eval date 2026-02-19
GPT-5.2
90.3
Rank #19/96 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner44.7
Rank #4/96 · confidence 3 · eval date 2026-02-19
GPT-5.2
35.4
Rank #21/96 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner55.3
Rank #5/90 · confidence 3 · eval date 2026-02-19
GPT-5.2
43.8
Rank #16/90 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
66.8
Rank #30/55 · confidence 3 · eval date 2026-02-19
GPT-5.2
winner80.8
Rank #11/55 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner46.5
Rank #14/99 · confidence 3 · eval date 2026-02-19
GPT-5.2
42.2
Rank #22/99 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
49.9
Rank #68/90 · confidence 3 · eval date 2026-02-19
GPT-5.2
winner79.7
Rank #39/90 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner83.9
Rank #2/27 · confidence 3 · eval date 2026-02-19
GPT-5.2
79.5
Rank #10/27 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner81.9
Rank #6/35 · confidence 3 · eval date 2026-02-19
GPT-5.2
70.3
Rank #11/35 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
80.2
Rank #14/22 · confidence 3 · eval date 2026-02-19
GPT-5.2
winner82.1
Rank #8/22 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner1276.0
Rank #21/66 · confidence 3 · eval date 2026-02-19
GPT-5.2
1219.0
Rank #35/66 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner77.1
Rank #10/86 · confidence 3 · eval date 2026-02-19
GPT-5.2
75.4
Rank #21/86 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner56.9
Rank #14/50 · confidence 3 · eval date 2026-02-19
GPT-5.2
46.5
Rank #29/50 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner74.0
Rank #15/53 · confidence 3 · eval date 2026-02-19
GPT-5.2
22.0
Rank #48/53 · confidence 3 · eval date 2025-12-11
Gemini 3.1 Pro
winner95.6
Rank #15/84 · confidence 3 · eval date 2026-02-19
GPT-5.2
84.8
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 Pro | GPT-5.2 |
|---|---|---|
Winner: Gemini 3.1 Pro | Gemini 3.1 Pro gemini-3.1-pro-preview Audit score 87 848480100 | GPT-5.2 gpt-5.2-chat 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 Pro | GPT-5.2 |
|---|---|---|
15 tests | Gemini 3.1 Pro speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
15 tests | Gemini 3.1 Pro speed / latency 101 tok/s / 15025ms input / output No data | GPT-5.2 speed / latency 71 tok/s / 2893ms input / output No data |
15 tests | Gemini 3.1 Pro speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 52 tok/s / 2671ms input / output No data |
10 tests | Gemini 3.1 Pro speed / latency 121 tok/s / 11404ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
10 tests | Gemini 3.1 Pro speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 94 tok/s / 11492ms input / output No data |
Gemini 3.1 Pro gemini-3.1-pro-preview 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 Pro gemini-3.1-pro-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: Gemini 3.1 Pro. 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 |
|---|
