Data points: 100
Model compare
The readout for Gemini 3.1 Flash Lite and GPT-5, before the detailed comparison sheet.
Weighted outcome: GPT-5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5
GPT-5 has the higher weighted result; Model A / B score 36 to 64.
Evidence depth
100 data points
Includes 15 benchmark rows, 1 audit samples, and 7 provider examples.
Selection signal
Start with GPT-5
The charts below split 23 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 Flash Lite and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 3.1 Flash Lite | GPT-5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 36.0 pts | 64.0 pts |
| Benchmark category leads | 2 categories | 3 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 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 3.1 Flash Lite | GPT-5 |
|---|---|---|
| Developer | OpenAI | |
| Released | May 2026 | Aug 2025 |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | 2024-09-30 |
| OpenRouter ID | google/gemini-3.1-flash-lite | openai/gpt-5 |
| References | No data | No data |
This report only uses LMSpeed data for Gemini 3.1 Flash Lite and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Gemini 3.1 Flash Lite
Gemini 3.1 Flash Lite is stronger in benchmark categories (Reasoning, Instruction following) and operational dimensions (Average speed).
GPT-5
GPT-5 is stronger in benchmark categories (Agents, Coding, Knowledge) 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 Flash Lite
46.7
Avg. score
GPT-5
51.9
GPT-5 leads by 3.2
GPT-5 leads by 8.2
Gemini 3.1 Flash Lite leads by 0.8
GPT-5 leads by 1.4
GPT-5
No data
Gemini 3.1 Flash Lite
Gemini 3.1 Flash Lite leads by 2.6
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 3.1 Flash Lite
65.3
Rank #44/89 · confidence 1 · eval date 2026-03-03
GPT-5
winner75.6
Rank #2/89 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
1.1
Rank #54/73 · confidence 1 · eval date 2026-03-03
GPT-5
winner5.7
Rank #30/73 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
34.7
Rank #42/59 · confidence 1 · eval date 2026-03-03
GPT-5
winner37.8
Rank #41/59 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
41.9
Rank #51/96 · confidence 1 · eval date 2026-03-03
GPT-5
winner42.9
Rank #46/96 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
36.4
Rank #34/90 · confidence 1 · eval date 2026-03-03
GPT-5
winner40.7
Rank #20/90 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
81.6
Rank #34/90 · confidence 1 · eval date 2026-03-03
GPT-5
winner82.1
Rank #31/90 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
16.2
Rank #58/96 · confidence 1 · eval date 2026-03-03
GPT-5
winner26.5
Rank #39/96 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
82.2
Rank #55/96 · confidence 1 · eval date 2026-03-03
GPT-5
winner85.4
Rank #45/96 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
25.0
Rank #65/99 · confidence 1 · eval date 2026-03-03
GPT-5
winner34.7
Rank #48/99 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
winner75.5
Rank #23/57 · confidence 1 · eval date 2026-03-03
GPT-5
74.2
Rank #32/57 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
winner77.2
Rank #9/86 · confidence 1 · eval date 2026-03-03
GPT-5
73.1
Rank #29/86 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
6.2
Rank #45/55 · confidence 1 · eval date 2026-03-03
GPT-5
winner25.7
Rank #28/55 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
7.3
Rank #45/50 · confidence 1 · eval date 2026-03-03
GPT-5
winner28.9
Rank #31/50 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
647.0
Rank #45/55 · confidence 1 · eval date 2026-03-03
GPT-5
winner1079.0
Rank #31/55 · confidence 1 · eval date 2025-08-07
Gemini 3.1 Flash Lite
31.3
Rank #73/84 · confidence 1 · eval date 2026-03-03
GPT-5
winner84.8
Rank #44/84 · 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 Flash Lite | GPT-5 |
|---|---|---|
Winner: Gemini 3.1 Flash Lite | Gemini 3.1 Flash Lite gemini-3.1-flash-lite Audit score 89 1006886100 | GPT-5 gpt-5-chat-latest 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 Flash Lite | GPT-5 |
|---|---|---|
25 tests | Gemini 3.1 Flash Lite speed / latency 59 tok/s / 25230ms input / output No data | GPT-5 speed / latency 95 tok/s / 1234ms input / output No data |
15 tests | Gemini 3.1 Flash Lite speed / latency 218 tok/s / 4094ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
10 tests | Gemini 3.1 Flash Lite speed / latency 179 tok/s / 1599ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
5 tests | Gemini 3.1 Flash Lite speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 45 tok/s / 3704ms input / output No data |
5 tests | Gemini 3.1 Flash Lite speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 102 tok/s / 948ms input / output No data |
Gemini 3.1 Flash Lite gemini-3.1-flash-lite-preview speed / latency No data input / output $0/request | GPT-5 gpt-5-chat-latest speed / latency No data input / output $0/request | |
Gemini 3.1 Flash Lite gemini-3.1-flash-lite-preview speed / latency No data input / output $0.010/M/$0.062/M | GPT-5 gpt-5 speed / latency No data input / output $0.771/M |
Weighted outcome: GPT-5. 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 |
|---|
