Data points: 106
Model compare
The readout for Gemini 3.6 Flash and GPT-5.1, before the detailed comparison sheet.
Weighted outcome: Gemini 3.6 Flash. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Gemini 3.6 Flash
Gemini 3.6 Flash has the higher weighted result; Model A / B score 80 to 20.
Evidence depth
106 data points
Includes 22 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with Gemini 3.6 Flash
The charts below split 30 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 3.6 Flash and GPT-5.1: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 3.6 Flash | GPT-5.1 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 80.0 pts | 20.0 pts |
| Benchmark category leads | 4 categories | 0 categories |
| Operational advantages | No data | Cheapest input price, 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 3.6 Flash | GPT-5.1 |
|---|---|---|
| Developer | OpenAI | |
| Released | Jul 2026 | Nov 2025 |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | google/gemini-3.6-flash | openai/gpt-5.1 |
| References | No data | No data |
This report only uses LMSpeed data for Gemini 3.6 Flash and GPT-5.1: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Gemini 3.6 Flash
Gemini 3.6 Flash leads these benchmark categories: Agents, Coding, Reasoning, Knowledge.
GPT-5.1
GPT-5.1 has these operational advantages: Cheapest input price, 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 3.6 Flash
55.8
Avg. score
GPT-5.1
52
Gemini 3.6 Flash leads by 6.1
Gemini 3.6 Flash leads by 7.1
Gemini 3.6 Flash leads by 6.4
Gemini 3.6 Flash leads by 4.0
GPT-5.1
No data
Gemini 3.6 Flash
GPT-5.1
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 3.6 Flash
winner70.0
Rank #17/90 · confidence 1 · eval date 2026-07-21
GPT-5.1
56.0
Rank #47/90 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
$1.50/M
Rank #122/169 · confidence 4
GPT-5.1
winner$1.25/M
Rank #110/169 · confidence 4
Gemini 3.6 Flash
winner$7.50/M
Rank #116/169 · confidence 4
GPT-5.1
$10.00/M
Rank #126/169 · confidence 4
Gemini 3.6 Flash
winner$3.00/M
Rank #117/169 · confidence 4
GPT-5.1
$3.44/M
Rank #123/169 · confidence 4
Gemini 3.6 Flash
69.7
Rank #21/94 · confidence 1 · eval date 2026-07-21
GPT-5.1
winner75.0
Rank #3/94 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner92.8%
Rank #8/194 · confidence 4
GPT-5.1
87.3%
Rank #36/194 · confidence 4
Gemini 3.6 Flash
winner38.3%
Rank #18/193 · confidence 4
GPT-5.1
26.5%
Rank #45/193 · confidence 4
Gemini 3.6 Flash
winner10.6
Rank #23/77 · confidence 1 · eval date 2026-07-21
GPT-5.1
4.9
Rank #38/77 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner69.2
Rank #15/64 · confidence 1 · eval date 2026-07-21
GPT-5.1
49.4
Rank #36/64 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner52.7%
Rank #15/191 · confidence 4
GPT-5.1
43.3%
Rank #46/191 · confidence 4
Gemini 3.6 Flash
winner52.7
Rank #19/101 · confidence 1 · eval date 2026-07-21
GPT-5.1
43.3
Rank #49/101 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner23.5
Rank #7/34 · confidence 1 · eval date 2026-07-21
GPT-5.1
5.6
Rank #23/34 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner92.8
Rank #8/101 · confidence 1 · eval date 2026-07-21
GPT-5.1
87.3
Rank #39/101 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner50.2
Rank #10/95 · confidence 1 · eval date 2026-07-21
GPT-5.1
37.6
Rank #35/95 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner50.1
Rank #16/104 · confidence 1 · eval date 2026-07-21
GPT-5.1
36.9
Rank #46/104 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner38.3
Rank #17/101 · confidence 1 · eval date 2026-07-21
GPT-5.1
26.5
Rank #43/101 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner53.5
Rank #64/95 · confidence 1 · eval date 2026-07-21
GPT-5.1
51.3
Rank #67/95 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner83.2
Rank #4/61 · confidence 1 · eval date 2026-07-21
GPT-5.1
75.5
Rank #26/61 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner1319.0
Rank #8/69 · confidence 1 · eval date 2026-07-21
GPT-5.1
1212.0
Rank #41/69 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner1423.0
Rank #13/60 · confidence 1 · eval date 2026-07-21
GPT-5.1
988.0
Rank #40/60 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner46.2
Rank #13/55 · confidence 1 · eval date 2026-07-21
GPT-5.1
24.4
Rank #40/55 · confidence 1 · eval date 2025-11-13
Gemini 3.6 Flash
winner38.7
Rank #14/60 · confidence 1 · eval date 2026-07-21
GPT-5.1
21.0
Rank #41/60 · confidence 1 · eval date 2025-11-13
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 3.6 Flash | GPT-5.1 |
|---|---|---|
| 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 3.6 Flash | GPT-5.1 |
|---|---|---|
5 tests | Gemini 3.6 Flash speed / latency N/A / N/A input / output No data | GPT-5.1 speed / latency 96 tok/s / 1862ms input / output No data |
0 tests | Gemini 3.6 Flash speed / latency N/A / N/A input / output No data | GPT-5.1 speed / latency N/A / N/A input / output No data |
0 tests | Gemini 3.6 Flash speed / latency N/A / N/A input / output No data | GPT-5.1 speed / latency N/A / N/A input / output No data |
0 tests | Gemini 3.6 Flash speed / latency N/A / N/A input / output No data | GPT-5.1 speed / latency N/A / N/A input / output No data |
0 tests | Gemini 3.6 Flash speed / latency N/A / N/A input / output No data | GPT-5.1 speed / latency N/A / N/A input / output No data |
Gemini 3.6 Flash gemini-3.6-flash speed / latency No data input / output $0/request | GPT-5.1 gpt-5.1 speed / latency No data input / output $0/request | |
Gemini 3.6 Flash gemini-3.6-flash speed / latency No data input / output $0.062/M/$0.308/M | GPT-5.1 gpt-5.1-chat speed / latency No data input / output $0.771/M | |
Gemini 3.6 Flash gemini-3.6-flash speed / latency No data input / output $0.071/M/$0.429/M | GPT-5.1 gpt-5.1-medium speed / latency No data input / output $0.179/M |
Weighted outcome: Gemini 3.6 Flash. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
Input ImageTextFile Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
