Data points: 118
Model compare
The readout for Gemini 2.5 Flash and Gemini 2.5 Pro, before the detailed comparison sheet.
Weighted outcome: Gemini 2.5 Pro. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Gemini 2.5 Pro
Gemini 2.5 Pro has the higher weighted result; Model A / B score 38.7 to 61.3.
Evidence depth
118 data points
Includes 26 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with Gemini 2.5 Pro
The charts below split 34 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 Flash and Gemini 2.5 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 2.5 Flash | Gemini 2.5 Pro |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 38.7 pts | 61.3 pts |
| Benchmark category leads | 2 categories | 4 categories |
| Operational advantages | Cheapest input price, Average speed, First-token latency | Free providers, Provider coverage |
| Context window | 1.0M tokens | 1.0M tokens |
| Max output | 65.5K tokens | 65.5K tokens |
| Modalities | Input FileImageTextAudiovideo Output |
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 Flash | Gemini 2.5 Pro |
|---|---|---|
| Developer | ||
| Released | Jun 2025 | Jun 2025 |
| Parameters | No data | No data |
| Tokenizer | Gemini | Gemini |
| Knowledge cutoff | 2025-01-31 | 2025-01-31 |
| OpenRouter ID | google/gemini-2.5-flash | google/gemini-2.5-pro |
| References | No data | No data |
This report only uses LMSpeed data for Gemini 2.5 Flash and Gemini 2.5 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Gemini 2.5 Flash
Gemini 2.5 Flash is stronger in benchmark categories (Coding, Knowledge) and operational dimensions (Cheapest input price, Average speed, First-token latency).
Gemini 2.5 Pro
Gemini 2.5 Pro is stronger in benchmark categories (Agents, Reasoning, Math, Instruction following) and operational dimensions (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 2.5 Flash
45.4
Avg. score
Gemini 2.5 Pro
46.2
Gemini 2.5 Pro leads by 7.7
Gemini 2.5 Flash leads by 11.9
Gemini 2.5 Pro leads by 5.9
Gemini 2.5 Flash leads by 5.5
Gemini 2.5 Pro leads by 5.4
No data
No data
Gemini 2.5 Pro leads by 3.0
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 2.5 Flash
winner45.0
Rank #68/84 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
43.0
Rank #76/84 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
winner$0.300/M
Rank #46/162 · confidence 4
Gemini 2.5 Pro
$1.25/M
Rank #107/162 · confidence 4
Gemini 2.5 Flash
winner$0.850/M
Rank #67/162 · confidence 4
Gemini 2.5 Pro
$3.44/M
Rank #117/162 · confidence 4
Gemini 2.5 Flash
winner$2.50/M
Rank #75/162 · confidence 4
Gemini 2.5 Pro
$10.00/M
Rank #120/162 · confidence 4
Gemini 2.5 Flash
83.2%
Rank #40/125 · confidence 4
Gemini 2.5 Pro
winner86.2%
Rank #15/125 · confidence 4
Gemini 2.5 Flash
45.9
Rank #72/89 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner66.0
Rank #41/89 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
1.4
Rank #50/73 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner2.6
Rank #44/73 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
79.0%
Rank #76/188 · confidence 4
Gemini 2.5 Pro
winner84.4%
Rank #49/188 · confidence 4
Gemini 2.5 Flash
11.1%
Rank #89/187 · confidence 4
Gemini 2.5 Pro
winner21.1%
Rank #53/187 · confidence 4
Gemini 2.5 Flash
69.5%
Rank #30/115 · confidence 4
Gemini 2.5 Pro
winner80.1%
Rank #18/115 · confidence 4
Gemini 2.5 Flash
39.4%
Rank #80/185 · confidence 4
Gemini 2.5 Pro
winner42.8%
Rank #44/185 · confidence 4
Gemini 2.5 Flash
29.1
Rank #88/96 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner42.8
Rank #47/96 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
82.3%
Rank #11/68 · confidence 4
Gemini 2.5 Pro
winner88.7%
Rank #5/68 · confidence 4
Gemini 2.5 Flash
winner98.1%
Rank #7/74 · confidence 4
Gemini 2.5 Pro
96.7%
Rank #15/74 · confidence 4
Gemini 2.5 Flash
4.2
Rank #23/35 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
4.2
Rank #23/35 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
4.8
Rank #38/47 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner14.1
Rank #32/47 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
29.1
Rank #44/56 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner35.5
Rank #40/56 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
winner93.3
Rank #6/90 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
87.4
Rank #19/90 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
26.5
Rank #51/90 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner39.0
Rank #25/90 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
68.3
Rank #76/96 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner84.4
Rank #49/96 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
5.1
Rank #79/96 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner21.1
Rank #50/96 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
14.1
Rank #86/99 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner25.8
Rank #63/99 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
65.5
Rank #43/57 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner74.9
Rank #30/57 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
1140.0
Rank #55/66 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner1192.0
Rank #45/66 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
39.0
Rank #74/86 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner48.7
Rank #59/86 · confidence 1 · eval date 2025-03-01
Gemini 2.5 Flash
14.9
Rank #84/84 · confidence 1 · eval date 2025-06-17
Gemini 2.5 Pro
winner54.1
Rank #65/84 · confidence 1 · eval date 2025-03-01
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 2.5 Flash | Gemini 2.5 Pro |
|---|---|---|
| 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 2.5 Flash | Gemini 2.5 Pro |
|---|---|---|
40 tests | Gemini 2.5 Flash speed / latency 54 tok/s / 10365ms input / output No data | Gemini 2.5 Pro speed / latency 48 tok/s / 23637ms input / output No data |
25 tests | Gemini 2.5 Flash speed / latency 139 tok/s / 4002ms input / output No data | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data |
10 tests | Gemini 2.5 Flash speed / latency N/A / N/A input / output No data | Gemini 2.5 Pro speed / latency 103 tok/s / 16912ms input / output No data |
10 tests | Gemini 2.5 Flash speed / latency 200 tok/s / 8207ms input / output No data | Gemini 2.5 Pro speed / latency 106 tok/s / 16405ms input / output No data |
10 tests | Gemini 2.5 Flash speed / latency N/A / N/A input / output No data | Gemini 2.5 Pro speed / latency 105 tok/s / 4638ms input / output No data |
Gemini 2.5 Flash gemini-2.5-flash speed / latency No data input / output $0/M/$0/M | Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.103/M | |
Gemini 2.5 Flash gemini-2.5-flash speed / latency No data input / output $0/M/$0/M | Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0/M | |
Gemini 2.5 Flash gemini-2.5-flash-nothinking speed / latency No data input / output $0/request | Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0/request |
Weighted outcome: Gemini 2.5 Pro. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Input TextImageFileAudiovideo Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
