Data points: 213
Model compare
The readout for DeepSeek V4 Flash and DeepSeek V4 Pro, before the detailed comparison sheet.
Weighted outcome: DeepSeek V4 Pro. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
DeepSeek V4 Pro
DeepSeek V4 Pro has the higher weighted result; Model A / B score 44.7 to 55.3.
Evidence depth
213 data points
Includes 56 benchmark rows, 6 audit samples, and 9 provider examples.
Selection signal
Start with DeepSeek V4 Pro
The charts below split 71 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 DeepSeek V4 Flash and DeepSeek V4 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | DeepSeek V4 Flash | DeepSeek V4 Pro |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 44.7 pts | 55.3 pts |
| Benchmark category leads | 2 categories | 4 categories |
| Operational advantages | Cheapest input price, Average speed, First-token latency, Provider coverage | No data |
| Context window | 1.0M tokens | 1.0M tokens |
| Max output | 393.2K tokens | 384K tokens |
| Modalities | Input Text Output Text | Input Text |
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 | DeepSeek V4 Flash | DeepSeek V4 Pro |
|---|---|---|
| Developer | DeepSeek | DeepSeek |
| Released | Apr 2026 | Apr 2026 |
| Parameters | No data | No data |
| Tokenizer | DeepSeek | DeepSeek |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | deepseek/deepseek-v4-flash | deepseek/deepseek-v4-pro |
| References | No data | No data |
This report only uses LMSpeed data for DeepSeek V4 Flash and DeepSeek V4 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
DeepSeek V4 Flash
DeepSeek V4 Flash is stronger in benchmark categories (Math, Instruction following) and operational dimensions (Cheapest input price, Average speed, First-token latency, Provider coverage).
DeepSeek V4 Pro
DeepSeek V4 Pro leads these benchmark categories: Agents, Coding, Reasoning, Knowledge.
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
45.4
Avg. score
DeepSeek V4 Pro
47.9
DeepSeek V4 Pro leads by 4.4
DeepSeek V4 Pro leads by 4.5
DeepSeek V4 Pro leads by 2.2
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
DeepSeek V4 Flash
56.0
Rank #41/84 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner65.0
Rank #21/84 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
winner$0.280/M
Rank #7/162 · confidence 4
DeepSeek V4 Pro
$0.870/M
Rank #34/162 · confidence 4
DeepSeek V4 Flash
winner$0.175/M
Rank #12/162 · confidence 4
DeepSeek V4 Pro
$0.544/M
Rank #47/162 · confidence 4
DeepSeek V4 Flash
winner$0.140/M
Rank #17/162 · confidence 4
DeepSeek V4 Pro
$0.435/M
Rank #66/162 · confidence 4
DeepSeek V4 Flash
60.5
Rank #2/2 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner62.0
Rank #1/2 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
78.7
Rank #2/3 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner83.5
Rank #1/3 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
86.2%
Rank #15/125 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner87.5%
Rank #9/125 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
7.1
Rank #29/73 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner12.9
Rank #18/73 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
86.7%
Rank #36/188 · confidence 4
DeepSeek V4 Pro
winner90.5%
Rank #18/188 · confidence 4
DeepSeek V4 Flash
27.8%
Rank #36/187 · confidence 4
DeepSeek V4 Pro
winner33.5%
Rank #24/187 · confidence 4
DeepSeek V4 Flash
63.0
Rank #53/89 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner66.3
Rank #39/89 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
3052.0
Rank #2/2 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner3206.0
Rank #1/2 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
35.6
Rank #10/13 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner46.2
Rank #7/13 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
73.3
Rank #11/17 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner76.2
Rank #8/17 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
79.0
Rank #14/43 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner80.6
Rank #8/43 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
61.8
Rank #14/14 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner64.0
Rank #13/14 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
56.9
Rank #22/26 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner67.9
Rank #15/26 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
56.2
Rank #23/59 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner59.4
Rank #19/59 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
44.9
Rank #41/96 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner50.0
Rank #22/96 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
52.6
Rank #31/37 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner55.4
Rank #26/37 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
42.0%
Rank #52/185 · confidence 4
DeepSeek V4 Pro
winner46.4%
Rank #31/185 · confidence 4
DeepSeek V4 Flash
46.8
Rank #47/65 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner50.6
Rank #39/65 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
85.7
Rank #2/2 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner90.2
Rank #1/2 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
33.0
Rank #3/4 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner38.3
Rank #2/4 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
94.8
Rank #3/14 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner95.2
Rank #2/14 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
88.4
Rank #3/4 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner89.8
Rank #2/4 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
81.6
Rank #6/56 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner82.0
Rank #4/56 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
50.0
Rank #1/8 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
50.0
Rank #1/8 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
winner95.8
Rank #1/90 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
94.0
Rank #4/90 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
78.9
Rank #2/2 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner84.4
Rank #1/2 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
34.1
Rank #2/2 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner57.9
Rank #1/2 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
88.1
Rank #18/24 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner90.1
Rank #15/24 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
40.3
Rank #27/99 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner44.3
Rank #17/99 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
37.2
Rank #33/90 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner43.3
Rank #18/90 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
32.1
Rank #27/96 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner35.9
Rank #19/96 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
60.1
Rank #40/55 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner71.8
Rank #21/55 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
winner89.4
Rank #27/96 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
88.8
Rank #29/96 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
1233.0
Rank #33/66 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner1260.0
Rank #28/66 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
winner79.2
Rank #5/86 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
76.5
Rank #12/86 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
45.1
Rank #5/5 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner48.2
Rank #3/5 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
47.8
Rank #12/21 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner51.8
Rank #8/21 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
833.0
Rank #12/13 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner930.0
Rank #9/13 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
31.5
Rank #11/12 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner38.3
Rank #9/12 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
22.9
Rank #11/12 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner25.8
Rank #10/12 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
69.0
Rank #14/23 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner73.6
Rank #10/23 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
95.0
Rank #19/84 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner96.2
Rank #10/84 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
39.6
Rank #12/15 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner40.4
Rank #11/15 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
81.3
Rank #13/16 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner84.4
Rank #11/16 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
73.2
Rank #17/25 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner83.4
Rank #11/25 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
31.1
Rank #16/55 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner36.4
Rank #14/55 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
57.8
Rank #17/28 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner59.8
Rank #14/28 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
1189.0
Rank #21/55 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner1306.0
Rank #15/55 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
34.4
Rank #21/50 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner40.3
Rank #15/50 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
winner54.4
Rank #18/50 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
50.3
Rank #23/50 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
56.9
Rank #32/46 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner67.9
Rank #18/46 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Flash
46.7
Rank #37/53 · confidence 2 · eval date 2026-04-24
DeepSeek V4 Pro
winner67.4
Rank #19/53 · confidence 2 · eval date 2026-04-24
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek V4 Flash | DeepSeek V4 Pro |
|---|---|---|
Winner: DeepSeek V4 Flash | DeepSeek V4 Flash deepseek-v4-flash Audit score 93 1008486100 | DeepSeek V4 Pro deepseek-v4-pro No audit yet |
Winner: DeepSeek V4 Flash | DeepSeek V4 Flash deepseek-v4-flash Audit score 92 10068100100 | DeepSeek V4 Pro deepseek-v4-pro No audit yet |
Winner: DeepSeek V4 Flash | DeepSeek V4 Flash deepseek-v4-flash Audit score 92 1008484100 | DeepSeek V4 Pro deepseek-v4-pro No audit yet |
Winner: DeepSeek V4 Flash | DeepSeek V4 Flash deepseek-v4-flash Audit score 92 10068100100 | DeepSeek V4 Pro deepseek-v4-pro No audit yet |
Winner: DeepSeek V4 Pro | DeepSeek V4 Flash deepseek-v4-flash Audit score 83 807280100 | DeepSeek V4 Pro deepseek-v4-pro Audit score 87 78 |
Winner: DeepSeek V4 Flash | DeepSeek V4 Flash deepseek-v4-flash Audit score 85 846886100 | DeepSeek V4 Pro deepseek-v4-pro No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | DeepSeek V4 Flash | DeepSeek V4 Pro |
|---|---|---|
490 tests | DeepSeek V4 Flash speed / latency 79 tok/s / 2017ms input / output No data | DeepSeek V4 Pro speed / latency 42 tok/s / 5621ms input / output No data |
105 tests | DeepSeek V4 Flash speed / latency 24 tok/s / 13618ms input / output No data | DeepSeek V4 Pro speed / latency 22 tok/s / 2343ms input / output No data |
75 tests | DeepSeek V4 Flash speed / latency 59 tok/s / 29380ms input / output No data | DeepSeek V4 Pro speed / latency 53 tok/s / 13840ms input / output No data |
30 tests | DeepSeek V4 Flash speed / latency 108 tok/s / 3324ms input / output No data | DeepSeek V4 Pro speed / latency 35 tok/s / 7489ms input / output No data |
25 tests | DeepSeek V4 Flash speed / latency 45 tok/s / 9731ms input / output No data | DeepSeek V4 Pro speed / latency N/A / N/A input / output No data |
DeepSeek V4 Flash deepseek-v4-flash:cloud speed / latency No data input / output $0.0080/request | DeepSeek V4 Pro deepseek-ai/deepseek-v4-pro speed / latency No data input / output $0/request | |
DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0/M/$0/M | DeepSeek V4 Pro deepseek-v4-pro speed / latency No data input / output $0.167/M | |
DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0/M/$0/M | DeepSeek V4 Pro deepseek-v4-pro speed / latency No data input / output $0/M | |
DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0/M/$0/M | DeepSeek V4 Pro deepseek-v4-pro speed / latency No data input / output $0.118/M |
Weighted outcome: DeepSeek V4 Pro. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
DeepSeek V4 Pro leads by 5.1
DeepSeek V4 Flash leads by 0.7
No data
No data
DeepSeek V4 Flash leads by 0.9
