Data points: 145
Model compare
The readout for Gemini 2.5 Pro 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 12 to 88.
Evidence depth
145 data points
Includes 30 benchmark rows, 4 audit samples, and 8 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 42 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 2.5 Pro and GPT-5.4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 2.5 Pro | GPT-5.4 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 12.0 pts | 88.0 pts |
| Benchmark category leads | 0 categories | 6 categories |
| Operational advantages | Cheapest input price, Average speed, Free providers | First-token latency, Provider coverage |
| Context window | 1.0M tokens | 1.1M tokens |
| Max output | 65.5K tokens | 128K 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 2.5 Pro | GPT-5.4 |
|---|---|---|
| Developer | OpenAI | |
| Released | Jun 2025 | Mar 2026 |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | 2025-01-31 | No data |
| OpenRouter ID | google/gemini-2.5-pro | openai/gpt-5.4 |
| References | No data | No data |
This report only uses LMSpeed data for Gemini 2.5 Pro and GPT-5.4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Gemini 2.5 Pro
Gemini 2.5 Pro has these operational advantages: Cheapest input price, Average speed, Free providers.
GPT-5.4
GPT-5.4 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Math) and operational dimensions (First-token latency, 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 2.5 Pro
46.2
Avg. score
GPT-5.4
57.4
GPT-5.4 leads by 12.5
GPT-5.4 leads by 23.8
GPT-5.4 leads by 1.3
GPT-5.4 leads by 23.6
GPT-5.4 leads by 1.4
No data
GPT-5.4
GPT-5.4 leads by 8.2
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 2.5 Pro
43.0
Rank #76/84 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner67.0
Rank #19/84 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
winner$1.25/M
Rank #107/162 · confidence 4
GPT-5.4
$2.50/M
Rank #131/162 · confidence 4
Gemini 2.5 Pro
winner$3.44/M
Rank #117/162 · confidence 4
GPT-5.4
$5.63/M
Rank #135/162 · confidence 4
Gemini 2.5 Pro
winner$10.00/M
Rank #120/162 · confidence 4
GPT-5.4
$15.00/M
Rank #136/162 · confidence 4
Gemini 2.5 Pro
66.0
Rank #41/89 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner74.0
Rank #6/89 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
2.6
Rank #44/73 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner23.4
Rank #7/73 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
winner84.4%
Rank #49/188 · confidence 4
GPT-5.4
74.8%
Rank #96/188 · confidence 4
Gemini 2.5 Pro
winner21.1%
Rank #53/187 · confidence 4
GPT-5.4
10.6%
Rank #91/187 · confidence 4
Gemini 2.5 Pro
0.4
Rank #33/33 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner67.4
Rank #3/33 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
42.8
Rank #47/96 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner56.6
Rank #4/96 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
33.3
Rank #44/59 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner71.0
Rank #11/59 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
42.8%
Rank #44/185 · confidence 4
GPT-5.4
winner47.1%
Rank #24/185 · confidence 4
Gemini 2.5 Pro
36.1
Rank #59/65 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner42.4
Rank #53/65 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
14.1
Rank #32/47 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner47.6
Rank #7/47 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
4.2
Rank #23/35 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner27.1
Rank #8/35 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
35.5
Rank #40/56 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner65.9
Rank #17/56 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
21.1
Rank #50/96 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner41.6
Rank #8/96 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
39.0
Rank #25/90 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner50.0
Rank #9/90 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
25.8
Rank #63/99 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner51.4
Rank #10/99 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
84.4
Rank #49/96 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner92.0
Rank #11/96 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
23.5
Rank #55/55 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner77.3
Rank #16/55 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
87.4
Rank #19/90 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner88.6
Rank #18/90 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
74.9
Rank #30/57 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner78.4
Rank #16/57 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
1192.0
Rank #45/66 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner1245.0
Rank #32/66 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
48.7
Rank #59/86 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner73.9
Rank #24/86 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
42.0
Rank #34/50 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner64.9
Rank #4/50 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
7.1
Rank #44/55 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner41.1
Rank #12/55 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
8.6
Rank #44/50 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner44.6
Rank #12/50 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
672.0
Rank #44/55 · confidence 1 · eval date 2025-03-01
GPT-5.4
winner1392.0
Rank #12/55 · confidence 3 · eval date 2026-03-05
Gemini 2.5 Pro
54.1
Rank #65/84 · confidence 1 · eval date 2025-03-01
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 2.5 Pro | GPT-5.4 |
|---|---|---|
Winner: GPT-5.4 | Gemini 2.5 Pro gemini-2.5-pro No audit yet | GPT-5.4 gpt-5.4 Audit score 100 100100100100 |
Winner: GPT-5.4 | Gemini 2.5 Pro gemini-2.5-pro No audit yet | GPT-5.4 gpt-5.4 Audit score 93 1008486100 |
Winner: GPT-5.4 | Gemini 2.5 Pro gemini-2.5-pro No audit yet | GPT-5.4 gpt-5.4 Audit score 90 1008476100 |
Winner: GPT-5.4 | Gemini 2.5 Pro gemini-2.5-pro-c No audit yet | GPT-5.4 gpt-5.4 Audit score 82 806880100 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Gemini 2.5 Pro | GPT-5.4 |
|---|---|---|
50 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 50 tok/s / 7305ms input / output No data |
30 tests | Gemini 2.5 Pro speed / latency 48 tok/s / 23637ms input / output No data | GPT-5.4 speed / latency N/A / N/A input / output No data |
15 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 41 tok/s / 6581ms input / output No data |
10 tests | Gemini 2.5 Pro 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 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 88 tok/s / 6075ms input / output No data |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0/M/$0/M | GPT-5.4 gpt-5.4 speed / latency No data input / output $0.240/M | |
Gemini 2.5 Pro gemini-2.5-pro 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 2.5 Pro gemini-2.5-pro-preview-06-05 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 |
|---|
