Data points: 124
The readout for DeepSeek V4 Flash and Gemini 2.5 Flash, before the detailed comparison sheet.
Decision read
DeepSeek V4 Flash
DeepSeek V4 Flash currently has the stronger profile, with verified wins split 4 to 2.
Evidence depth
124 data points
Includes 24 benchmark rows, 2 audit samples, and 10 provider examples.
Selection signal
Start with DeepSeek V4 Flash
The charts below split 36 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.
Model compare DeepSeek V4 Flash vs Gemini 2.5 Flashdeepseek-v4-flash-vs-gemini-2-5-flash | Model A DeepSeek V4 Flash | Model B Gemini 2.5 Flash |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 2 wins |
| Where it leads | First-token latency, Free providers, Provider coverage, Recent tests |
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
DeepSeek V4 Flash
71.3
Avg. score
Gemini 2.5 Flash
50
Selected category
Agents
DeepSeek V4 Flash leads by 45.5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
DeepSeek V4 Flash
winner74.0
Rank #17/96 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
39.0
Rank #69/96 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner$0.280/M
Rank #6/138 · confidence 4
Gemini 2.5 Flash
$2.50/M
Rank #66/138 · confidence 4
DeepSeek V4 Flash
winner$0.175/M
Rank #11/138 · confidence 4
Gemini 2.5 Flash
$0.850/M
Rank #58/138 · confidence 4
DeepSeek V4 Flash
winner$0.140/M
Rank #17/138 · confidence 4
Gemini 2.5 Flash
$0.300/M
Rank #41/138 · confidence 4
DeepSeek V4 Flash
winner86.2%
Rank #13/113 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
83.2%
Rank #38/113 · confidence 4
DeepSeek V4 Flash
winner7.1
Rank #15/54 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
1.4
Rank #33/54 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner27.8%
Rank #21/150 · confidence 4
Gemini 2.5 Flash
11.1%
Rank #67/150 · confidence 4
DeepSeek V4 Flash
winner86.7%
Rank #22/152 · confidence 4
Gemini 2.5 Flash
79.0%
Rank #59/152 · confidence 4
DeepSeek V4 Flash
winner63.0
Rank #36/67 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
45.9
Rank #53/67 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner91.6%
Rank #2/108 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
69.5%
Rank #32/108 · confidence 4
DeepSeek V4 Flash
winner81.8
Rank #10/83 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
20.4
Rank #74/83 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner44.9
Rank #25/74 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
29.1
Rank #67/74 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner35.6
Rank #28/69 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
12.1
Rank #59/69 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner42.0%
Rank #37/149 · confidence 4
Gemini 2.5 Flash
39.4%
Rank #62/149 · confidence 4
DeepSeek V4 Flash
winner95.8
Rank #1/68 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
93.3
Rank #5/68 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner89.4
Rank #11/74 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
68.3
Rank #57/74 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner32.1
Rank #13/74 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
5.1
Rank #59/74 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner40.3
Rank #13/77 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
14.1
Rank #66/77 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner37.2
Rank #23/68 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
26.5
Rank #38/68 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner65.5
Rank #31/79 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
27.1
Rank #73/79 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner1251.0
Rank #23/50 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
1158.0
Rank #41/50 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner79.2
Rank #2/70 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
39.0
Rank #58/70 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner95.0
Rank #15/68 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
14.9
Rank #68/68 · confidence 1 · eval date 2025-06-17
DeepSeek V4 Flash
winner68.3
Rank #25/81 · confidence 2 · eval date 2026-04-24
Gemini 2.5 Flash
37.3
Rank #61/81 · confidence 1 · eval date 2025-06-17
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek V4 Flash | Gemini 2.5 Flash |
|---|---|---|
Winner: DeepSeek V4 Flash | DeepSeek V4 Flash deepseek-v4-flash Audit score 100 100 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | DeepSeek V4 Flash | Gemini 2.5 Flash |
|---|---|---|
25 tests | DeepSeek V4 Flash speed / latency N/A / N/A input / output No data |
This report only uses LMSpeed data for DeepSeek V4 Flash and Gemini 2.5 Flash: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | DeepSeek V4 Flash | Gemini 2.5 Flash |
|---|---|---|
| When to choose each model | DeepSeek V4 Flash DeepSeek V4 Flash is stronger when you prioritize First-token latency, Free providers, Provider coverage, Recent tests. | Gemini 2.5 Flash Gemini 2.5 Flash is stronger when you prioritize Cheapest input price, Average speed. |
TL;DR: DeepSeek V4 Flash leads across 124 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from DeepSeek V4 Flash vs Gemini 2.5 Flash into nearby model comparisons with enough verified LMSpeed data.
| Cheapest input price, Average speed |
| Model metadata | DeepSeek V4 Flash exposes 1.0M tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. | Gemini 2.5 Flash exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. |
|---|---|---|
| Developer | DeepSeek | |
| Context window | 1.0M tokens | 1.0M tokens |
| Max output | 65.5K tokens | 65.5K tokens |
| Released | Apr 2026 | Jun 2025 |
| Modalities | Input Text Output Text | Input FileImageTextAudiovideo Output Text |
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | DeepSeek | Gemini |
| Knowledge cutoff | No data | 2025-01-31 |
| OpenRouter ID | deepseek/deepseek-v4-flash | google/gemini-2.5-flash |
| References | No data | No data |
Gemini 2.5 Flash gemini-2.5-flash-preview-04-17 No audit yet |
速创APIWinner: DeepSeek V4 Flash | DeepSeek V4 Flash deepseek-v4-flash Audit score 92 10068100100 | Gemini 2.5 Flash gemini-2.5-flash No audit yet |
|---|
Gemini 2.5 Flash
speed / latency
139 tok/s / 4002ms
input / output
No data
CatClaw API20 tests | DeepSeek V4 Flash speed / latency 42 tok/s / 3076ms input / output No data | Gemini 2.5 Flash speed / latency 54 tok/s / 10365ms input / output No data |
|---|
小水管 API20 tests | DeepSeek V4 Flash speed / latency 83 tok/s / 5114ms input / output No data | Gemini 2.5 Flash speed / latency N/A / N/A input / output No data |
|---|
OpenRouter15 tests | DeepSeek V4 Flash speed / latency 88 tok/s / 3315ms input / output No data | Gemini 2.5 Flash speed / latency 141 tok/s / 2052ms input / output No data |
|---|
9527 API10 tests | DeepSeek V4 Flash speed / latency 31 tok/s / 7293ms input / output No data | Gemini 2.5 Flash speed / latency N/A / N/A input / output No data |
|---|
DeepSeek V4 Flash deepseek-ai/deepseek-v4-flash speed / latency No data input / output $0/M / $0/M | Gemini 2.5 Flash gemini-2.5-flash speed / latency No data input / output $0.100/M / $0.833/M |
DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0/M / $0/M | Gemini 2.5 Flash gemini-2.5-flash speed / latency No data input / output $0/M / $0/M |
DeepSeek V4 Flash 次DeepSeek-V4-Flash speed / latency No data input / output $0.0017/M / $0.0017/M | Gemini 2.5 Flash 流式抗截断/gemini-2.5-flash speed / latency No data input / output $0.274/M / $3.29/M |
DeepSeek V4 Flash deepseek-ai/DeepSeek-V4-Flash speed / latency No data input / output $0.0027/M / $0.0027/M | Gemini 2.5 Flash gemini-2.5-flash speed / latency No data input / output $0.025/M / $0.205/M |
DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $1.00/M / $2.00/M | Gemini 2.5 Flash gemini-2.5-flash speed / latency No data input / output $0.0040/M / $0.0040/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
