Data points: 104
Model compare
The readout for Gemini 3.1 Pro and GPT-5, 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 74.7 to 25.3.
Evidence depth
104 data points
Includes 17 benchmark rows, 1 audit samples, and 7 provider examples.
Selection signal
Start with Gemini 3.1 Pro
The charts below split 25 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: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 3.1 Pro | GPT-5 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 74.7 pts | 25.3 pts |
| Benchmark category leads | 5 categories | 1 categories |
| Operational advantages | Average speed, Provider coverage | Cheapest input price, First-token latency, Free providers |
| 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 |
|---|---|---|
| Developer | OpenAI | |
| Released | Feb 2026 | Aug 2025 |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | 2024-09-30 |
| OpenRouter ID | google/gemini-3.1-pro-preview | openai/gpt-5 |
| References | No data | No data |
This report only uses LMSpeed data for Gemini 3.1 Pro and GPT-5: 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, Instruction following) and operational dimensions (Average speed, Provider coverage).
GPT-5
GPT-5 is stronger in benchmark categories (Math) and operational dimensions (Cheapest input price, First-token latency, Free providers).
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
51.9
Gemini 3.1 Pro leads by 5.1
Gemini 3.1 Pro leads by 10.2
Gemini 3.1 Pro leads by 6.4
Gemini 3.1 Pro leads by 7.9
GPT-5 leads by 6.3
Gemini 3.1 Pro
Gemini 3.1 Pro
Gemini 3.1 Pro leads by 2.5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 3.1 Pro
72.7
Rank #13/89 · confidence 3 · eval date 2026-02-19
GPT-5
winner75.6
Rank #2/89 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner17.7
Rank #12/73 · confidence 3 · eval date 2026-02-19
GPT-5
5.7
Rank #30/73 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner58.9
Rank #2/96 · confidence 3 · eval date 2026-02-19
GPT-5
42.9
Rank #46/96 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner68.8
Rank #13/59 · confidence 3 · eval date 2026-02-19
GPT-5
37.8
Rank #41/59 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner32.0
Rank #13/33 · confidence 3 · eval date 2026-02-19
GPT-5
20.1
Rank #22/33 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner94.1
Rank #1/96 · confidence 3 · eval date 2026-02-19
GPT-5
85.4
Rank #45/96 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner44.7
Rank #4/96 · confidence 3 · eval date 2026-02-19
GPT-5
26.5
Rank #39/96 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner55.3
Rank #5/90 · confidence 3 · eval date 2026-02-19
GPT-5
40.7
Rank #20/90 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner46.5
Rank #14/99 · confidence 3 · eval date 2026-02-19
GPT-5
34.7
Rank #48/99 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
49.9
Rank #68/90 · confidence 3 · eval date 2026-02-19
GPT-5
winner82.1
Rank #31/90 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner82.4
Rank #3/57 · confidence 3 · eval date 2026-02-19
GPT-5
74.2
Rank #32/57 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner1276.0
Rank #21/66 · confidence 3 · eval date 2026-02-19
GPT-5
1209.0
Rank #40/66 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner77.1
Rank #10/86 · confidence 3 · eval date 2026-02-19
GPT-5
73.1
Rank #29/86 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
winner95.6
Rank #15/84 · confidence 3 · eval date 2026-02-19
GPT-5
84.8
Rank #44/84 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
21.4
Rank #35/55 · confidence 3 · eval date 2026-02-19
GPT-5
winner25.7
Rank #28/55 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
23.2
Rank #37/50 · confidence 3 · eval date 2026-02-19
GPT-5
winner28.9
Rank #31/50 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Pro
965.0
Rank #37/55 · confidence 3 · eval date 2026-02-19
GPT-5
winner1079.0
Rank #31/55 · confidence 1 · eval date 2025-08-07
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 3.1 Pro | GPT-5 |
|---|---|---|
Winner: Gemini 3.1 Pro | Gemini 3.1 Pro gemini-3.1-pro-preview Audit score 87 848480100 | GPT-5 gpt-5-2025-08-07 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 |
|---|---|---|
20 tests | Gemini 3.1 Pro speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 95 tok/s / 1234ms input / output No data |
15 tests | Gemini 3.1 Pro speed / latency 121 tok/s / 11404ms input / output No data | GPT-5 speed / latency 45 tok/s / 3704ms input / output No data |
10 tests | Gemini 3.1 Pro speed / latency 102 tok/s / 12933ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
10 tests | Gemini 3.1 Pro speed / latency 101 tok/s / 15025ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
5 tests | Gemini 3.1 Pro speed / latency 70 tok/s / 25059ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
Gemini 3.1 Pro gemini-3.1-pro-preview speed / latency No data input / output $0.192/M/$1.15/M | GPT-5 gpt-5 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 gpt-5-chat-latest 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 TextImageFile Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
