Data points: 105
Model compare
The readout for Gemini 3 Flash and GPT-4o, before the detailed comparison sheet.
Weighted outcome: Gemini 3 Flash. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Gemini 3 Flash
Gemini 3 Flash has the higher weighted result; Model A / B score 92 to 8.
Evidence depth
105 data points
Includes 20 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with Gemini 3 Flash
The charts below split 26 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 Flash and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 3 Flash | GPT-4o |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 92.0 pts | 8.0 pts |
| Benchmark category leads | 6 categories | 0 categories |
| Operational advantages | Cheapest input price, Average speed, Provider coverage | First-token latency, Free providers |
| Context window | 1.0M tokens | 128K tokens |
| Max output | 65.5K tokens | 16.4K tokens |
| Modalities | Input TextImageFileAudiovideo |
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 Flash | GPT-4o |
|---|---|---|
| Developer | OpenAI | |
| Released | Dec 2025 | Nov 2024 |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | 2023-10-31 |
| OpenRouter ID | google/gemini-3-flash-preview | openai/gpt-4o |
| References | No data | No data |
This report only uses LMSpeed data for Gemini 3 Flash and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Gemini 3 Flash
Gemini 3 Flash is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Math) and operational dimensions (Cheapest input price, Average speed, Provider coverage).
GPT-4o
GPT-4o has these operational advantages: 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 Flash
50.1
Avg. score
GPT-4o
43.2
Gemini 3 Flash leads by 4.0
Gemini 3 Flash leads by 7.7
Gemini 3 Flash leads by 11.9
Gemini 3 Flash leads by 1.8
Gemini 3 Flash leads by 9.7
No data
No data
Gemini 3 Flash leads by 6.5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 3 Flash
winner57.0
Rank #38/84 · confidence 1 · eval date 2025-12-01
GPT-4o
43.0
Rank #76/84 · confidence 1 · eval date 2024-05-13
Gemini 3 Flash
winner$0.500/M
Rank #69/162 · confidence 4
GPT-4o
$2.50/M
Rank #131/162 · confidence 4
Gemini 3 Flash
winner$1.13/M
Rank #81/162 · confidence 4
GPT-4o
$4.38/M
Rank #127/162 · confidence 4
Gemini 3 Flash
winner$3.00/M
Rank #85/162 · confidence 4
GPT-4o
$10.00/M
Rank #120/162 · confidence 4
Gemini 3 Flash
winner88.2%
Rank #7/125 · confidence 4
GPT-4o
74.8%
Rank #90/125 · confidence 4
Gemini 3 Flash
winner81.2%
Rank #72/188 · confidence 4
GPT-4o
54.3%
Rank #156/188 · confidence 4
Gemini 3 Flash
winner14.1%
Rank #76/187 · confidence 4
GPT-4o
3.3%
Rank #180/187 · confidence 4
Gemini 3 Flash
winner49.9%
Rank #18/185 · confidence 4
GPT-4o
33.3%
Rank #120/185 · confidence 4
Gemini 3 Flash
winner79.7%
Rank #19/115 · confidence 4
GPT-4o
30.9%
Rank #88/115 · confidence 4
Gemini 3 Flash
winner49.9
Rank #23/96 · confidence 1 · eval date 2025-12-01
GPT-4o
33.3
Rank #80/96 · confidence 1 · eval date 2024-05-13
Gemini 3 Flash
winner35.6
Rank #16/47 · confidence 1 · eval date 2025-12-01
GPT-4o
0.3
Rank #47/47 · confidence 1 · eval date 2024-05-13
Gemini 3 Flash
winner50.5
Rank #29/56 · confidence 1 · eval date 2025-12-01
GPT-4o
25.4
Rank #54/56 · confidence 1 · eval date 2024-05-13
Gemini 3 Flash
winner90.2
Rank #11/90 · confidence 1 · eval date 2025-12-01
GPT-4o
37.9
Rank #75/90 · confidence 1 · eval date 2024-05-13
Gemini 3 Flash
winner45.5
Rank #14/90 · confidence 1 · eval date 2025-12-01
GPT-4o
19.7
Rank #75/90 · confidence 1 · eval date 2024-05-13
Gemini 3 Flash
winner81.2
Rank #59/96 · confidence 1 · eval date 2025-12-01
GPT-4o
54.3
Rank #91/96 · confidence 1 · eval date 2024-05-13
Gemini 3 Flash
winner14.1
Rank #62/96 · confidence 1 · eval date 2025-12-01
GPT-4o
3.3
Rank #94/96 · confidence 1 · eval date 2024-05-13
Gemini 3 Flash
winner27.4
Rank #62/99 · confidence 1 · eval date 2025-12-01
GPT-4o
11.2
Rank #90/99 · confidence 1 · eval date 2024-05-13
Gemini 3 Flash
winner1221.0
Rank #34/66 · confidence 1 · eval date 2025-12-01
GPT-4o
856.0
Rank #65/66 · confidence 1 · eval date 2024-05-13
Gemini 3 Flash
winner55.1
Rank #56/86 · confidence 1 · eval date 2025-12-01
GPT-4o
34.3
Rank #82/86 · confidence 1 · eval date 2024-05-13
Gemini 3 Flash
winner43.3
Rank #70/84 · confidence 1 · eval date 2025-12-01
GPT-4o
25.1
Rank #75/84 · confidence 1 · eval date 2024-05-13
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 3 Flash | GPT-4o |
|---|---|---|
| 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 Flash | GPT-4o |
|---|---|---|
40 tests | Gemini 3 Flash speed / latency 129 tok/s / 10293ms input / output No data | GPT-4o speed / latency 57 tok/s / 3381ms input / output No data |
20 tests | Gemini 3 Flash speed / latency 157 tok/s / 7994ms input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
20 tests | Gemini 3 Flash speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 88 tok/s / 1593ms input / output No data |
15 tests | Gemini 3 Flash speed / latency 160 tok/s / 9132ms input / output No data | GPT-4o speed / latency 99 tok/s / 2367ms input / output No data |
10 tests | Gemini 3 Flash speed / latency 118 tok/s / 9594ms input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
Gemini 3 Flash gemini-3-flash-preview-nothinking speed / latency No data input / output $0/request | GPT-4o gpt-4o-2024-05-13 speed / latency No data input / output $0/request |
Weighted outcome: Gemini 3 Flash. 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 modeWeb search |
|---|
