Data points: 119
Model compare
The readout for Gemini 3.1 Flash Lite and GPT-5.4, before the detailed comparison sheet.
Weighted outcome: GPT-5.4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5.4
GPT-5.4 has the higher weighted result; Model A / B score 17.3 to 82.7.
Evidence depth
119 data points
Includes 20 benchmark rows, 3 audit samples, and 8 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 31 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-5.4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 3.1 Flash Lite | GPT-5.4 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 17.3 pts | 82.7 pts |
| Benchmark category leads | 1 categories | 5 categories |
| Operational advantages | Average speed | Cheapest input price, First-token latency, Free providers, Provider coverage |
| Context window | 1.0M tokens | 1.1M 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-5.4 |
|---|---|---|
| Developer | OpenAI | |
| Released | May 2026 | Mar 2026 |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | google/gemini-3.1-flash-lite | openai/gpt-5.4 |
| References | No data | No data |
This report only uses LMSpeed data for Gemini 3.1 Flash Lite and GPT-5.4: 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 (Instruction following) and operational dimensions (Average speed).
GPT-5.4
GPT-5.4 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Multimodal) 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-5.4
57.4
GPT-5.4 leads by 13.9
GPT-5.4 leads by 22.1
GPT-5.4 leads by 4.0
GPT-5.4 leads by 11.4
GPT-5.4
No data
GPT-5.4 leads by 14.2
Gemini 3.1 Flash Lite leads by 1.4
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 3.1 Flash Lite
55.0
Rank #47/84 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner67.0
Rank #19/84 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
65.3
Rank #44/89 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner74.0
Rank #6/89 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
1.1
Rank #54/73 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner23.4
Rank #7/73 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
41.9
Rank #51/96 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner56.6
Rank #4/96 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
34.7
Rank #42/59 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner71.0
Rank #11/59 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
16.2
Rank #58/96 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner41.6
Rank #8/96 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
36.4
Rank #34/90 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner50.0
Rank #9/90 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
25.0
Rank #65/99 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner51.4
Rank #10/99 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
82.2
Rank #55/96 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner92.0
Rank #11/96 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
81.6
Rank #34/90 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner88.6
Rank #18/90 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
73.2
Rank #19/22 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner82.8
Rank #7/22 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
48.9
Rank #30/35 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner68.5
Rank #14/35 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
75.5
Rank #23/57 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner78.4
Rank #16/57 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
winner77.2
Rank #9/86 · confidence 1 · eval date 2026-03-03
GPT-5.4
73.9
Rank #24/86 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
38.5
Rank #41/50 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner64.9
Rank #4/50 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
12.2
Rank #19/24 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner33.3
Rank #7/24 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
6.2
Rank #45/55 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner41.1
Rank #12/55 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
7.3
Rank #45/50 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner44.6
Rank #12/50 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
647.0
Rank #45/55 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner1392.0
Rank #12/55 · confidence 3 · eval date 2026-03-05
Gemini 3.1 Flash Lite
31.3
Rank #73/84 · confidence 1 · eval date 2026-03-03
GPT-5.4
winner87.1
Rank #37/84 · confidence 3 · eval date 2026-03-05
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 3.1 Flash Lite | GPT-5.4 |
|---|---|---|
Winner: GPT-5.4 | Gemini 3.1 Flash Lite gemini-3.1-flash-lite No audit yet | GPT-5.4 gpt-5.4 Audit score 93 1008486100 |
Winner: GPT-5.4 | Gemini 3.1 Flash Lite gemini-3.1-flash-lite-preview No audit yet | GPT-5.4 gpt-5.4 Audit score 90 1008476100 |
Winner: Gemini 3.1 Flash Lite | Gemini 3.1 Flash Lite gemini-3.1-flash-lite Audit score 89 1006886100 | GPT-5.4 gpt-5.4 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-5.4 |
|---|---|---|
20 tests | Gemini 3.1 Flash Lite speed / latency 218 tok/s / 4094ms input / output No data | GPT-5.4 speed / latency 44 tok/s / 2518ms input / output No data |
10 tests | Gemini 3.1 Flash Lite speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 51 tok/s / 2526ms input / output No data |
10 tests | Gemini 3.1 Flash Lite speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 55 tok/s / 2903ms input / output No data |
10 tests | Gemini 3.1 Flash Lite speed / latency 179 tok/s / 1599ms input / output No data | GPT-5.4 speed / latency N/A / N/A input / output No data |
10 tests | Gemini 3.1 Flash Lite speed / latency 256 tok/s / 4450ms input / output No data | GPT-5.4 speed / latency 60 tok/s / 2482ms input / output No data |
Gemini 3.1 Flash Lite gemini-3.1-flash-lite-preview speed / latency No data input / output $0/request | GPT-5.4 gpt-5-4 speed / latency No data input / output $0.080/request | |
Gemini 3.1 Flash Lite gemini-3.1-flash-lite speed / latency No data input / output $0/M/$0/M | GPT-5.4 gpt-5.4-openai-compact speed / latency No data input / output $0/M | |
Gemini 3.1 Flash Lite gemini-3.1-flash-lite-preview speed / latency No data input / output $0/request | GPT-5.4 gpt-5.4-2026-03-05 speed / latency No data input / output $0/request |
Weighted outcome: GPT-5.4. 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 |
|---|
