Data points: 119
Model compare
Gemini 2.5 Pro vs GPT-5.2
The readout for Gemini 2.5 Pro and GPT-5.2, before the detailed comparison sheet.
Key Takeaways
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 30.7 to 69.3.
Evidence depth
119 data points
Includes 27 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 37 high-signal samples across speed, scores, and audit health.
Change comparison
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.
Comparison sheet
This report only uses LMSpeed data for Gemini 2.5 Pro and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 2.5 Pro | GPT-5.2 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 30.7 pts | 69.3 pts |
| Benchmark category leads | 2 categories | 4 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 TextImageFileAudiovideo Output Text | Input FileImageText Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
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 metadata
Model metadata
| Model compare | Gemini 2.5 Pro | GPT-5.2 |
|---|---|---|
| Developer | OpenAI | |
| Released | Jun 2025 | Dec 2025 |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | 2025-01-31 | No data |
| OpenRouter ID | google/gemini-2.5-pro | openai/gpt-5.2 |
| References | No data | No data |
When to choose each model
This report only uses LMSpeed data for Gemini 2.5 Pro and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Gemini 2.5 Pro
Gemini 2.5 Pro is stronger in benchmark categories (Reasoning, Math) and operational dimensions (Average speed).
GPT-5.2
GPT-5.2 is stronger in benchmark categories (Agents, Coding, Knowledge, Instruction following) and operational dimensions (Cheapest input price, First-token latency, Free providers, Provider coverage).
Benchmark score comparison
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Category performance
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
- Model A coverage
- 6 / 8
- Model B coverage
- 7 / 8
- Shared
- 6 shared categories
Avg. score
Gemini 2.5 Pro
45.7
Avg. score
GPT-5.2
51.8
Agents
GPT-5.2 leads by 3.0
Coding
GPT-5.2 leads by 17.5
Reasoning
Gemini 2.5 Pro leads by 0.5
Knowledge
GPT-5.2 leads by 18.6
Math
Gemini 2.5 Pro leads by 0.7
Multilingual
No data
Multimodal
GPT-5.2
Instruction following
GPT-5.2 leads by 8.6
Professional benchmark details
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Professional benchmark details
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 2.5 Pro
43.0
Rank #103/111 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner51.0
Rank #78/111 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
winner$1.25/M
Rank #123/186 · confidence 4
GPT-5.2
$1.75/M
Rank #140/186 · confidence 4
Gemini 2.5 Pro
winner$3.44/M
Rank #139/186 · confidence 4
GPT-5.2
$4.81/M
Rank #155/186 · confidence 4
Gemini 2.5 Pro
winner$10.00/M
Rank #142/186 · confidence 4
GPT-5.2
$14.00/M
Rank #156/186 · confidence 4
Gemini 2.5 Pro
66.0
Rank #74/106 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner82.7
Rank #11/106 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
86.2%
Rank #18/129 · confidence 4
GPT-5.2
winner87.4%
Rank #11/129 · confidence 4
Gemini 2.5 Pro
2.6
Rank #58/88 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner11.6
Rank #31/88 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
winner84.4%
Rank #71/218 · confidence 4
GPT-5.2
71.2%
Rank #138/218 · confidence 4
Gemini 2.5 Pro
winner22.5%
Rank #77/216 · confidence 4
GPT-5.2
8.0%
Rank #134/216 · confidence 4
Gemini 2.5 Pro
0.4
Rank #33/33 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner53.5
Rank #6/33 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
63.8
Rank #44/49 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner80.0
Rank #14/49 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
winner80.1%
Rank #18/115 · confidence 4
GPT-5.2
66.9%
Rank #36/115 · confidence 4
Gemini 2.5 Pro
42.8
Rank #61/113 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner52.1
Rank #28/113 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
38.7
Rank #76/87 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner46.5
Rank #64/87 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
14.1
Rank #32/47 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner40.7
Rank #10/47 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
4.2
Rank #24/36 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner18.8
Rank #12/36 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
35.3
Rank #47/63 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner57.5
Rank #31/63 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
winner90.9
Rank #16/106 · confidence 1 · eval date 2025-03-01
GPT-5.2
81.2
Rank #40/106 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
23.5
Rank #83/83 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner77.2
Rank #23/83 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
39.1
Rank #39/106 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner44.3
Rank #27/106 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
84.4
Rank #63/113 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner90.3
Rank #32/113 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
22.5
Rank #65/114 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner37.7
Rank #33/114 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
25.9
Rank #61/117 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner30.4
Rank #47/117 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
1178.0
Rank #58/78 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner1209.0
Rank #47/78 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
48.7
Rank #57/84 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner75.4
Rank #18/84 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
42.0
Rank #33/49 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner46.5
Rank #28/49 · confidence 4 · eval date 2025-12-11
Gemini 2.5 Pro
54.1
Rank #64/82 · confidence 1 · eval date 2025-03-01
GPT-5.2
winner84.8
Rank #46/82 · confidence 4 · eval date 2025-12-11
API audit comparison
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
API audit comparison
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 2.5 Pro | GPT-5.2 |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Provider examples
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
Provider examples
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Gemini 2.5 Pro | GPT-5.2 |
|---|---|---|
CatClaw API30 tests | Gemini 2.5 Pro speed / latency 48 tok/s / 23637ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
N1N20 tests | Gemini 2.5 Pro speed / latency 106 tok/s / 16405ms input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
ModelPool10 tests | Gemini 2.5 Pro speed / latency 81 tok/s / 21179ms input / output No data | GPT-5.2 speed / latency 64 tok/s / 5256ms input / output No data |
PackyCode10 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 94 tok/s / 11492ms input / output No data |
Rnglg2 API10 tests | Gemini 2.5 Pro speed / latency 111 tok/s / 17899ms input / output No data | GPT-5.2 speed / latency 55 tok/s / 1434ms input / output No data |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0/M/$0/M | GPT-5.2 gpt-5-2 speed / latency No data input / output $0/M/$0/M | |
Gemini 2.5 Pro gemini-2.5-pro-preview-06-05 speed / latency No data input / output $0/request | GPT-5.2 gpt-5.2-2025-12-11 speed / latency No data input / output $0/request | |
Gemini 2.5 Pro google/gemini-2.5-pro-preview speed / latency No data input / output $0.000001/request | GPT-5.2 openai/gpt-5.2 speed / latency No data input / output $1.75/M/$14.00/M | |
Gemini 2.5 Pro gemini-2.5-pro-c speed / latency No data input / output $0.0010/request | GPT-5.2 gpt-5.2-chat-latest speed / latency No data input / output $0.048/M/$0.384/M | |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.086/M/$0.685/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.0014/request |
FAQ
Weighted outcome: GPT-5.2. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
- Why is this comparison indexable?
- It has 6 verifiable comparison points, and both models have pricing or benchmark data.
- Are missing metrics invented?
- No. Metrics without LMSpeed data are omitted from this report.