Data points: 120
The readout for DeepSeek V4 Flash and GPT-4o, 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
120 data points
Includes 22 benchmark rows, 2 audit samples, and 10 provider examples.
Selection signal
Start with DeepSeek V4 Flash
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.
Model compare DeepSeek V4 Flash vs GPT-4odeepseek-v4-flash-vs-gpt-4o | Model A DeepSeek V4 Flash | Model B GPT-4o |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 2 wins |
| Where it leads | Cheapest input price, 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
68.3
Avg. score
GPT-4o
42.8
Selected category
Instruction following
DeepSeek V4 Flash leads by 39.2
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
DeepSeek V4 Flash
winner65.0
Rank #25/82 · confidence 2 · eval date 2026-04-24
GPT-4o
42.0
Rank #56/82 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner$0.280/M
Rank #2/95 · confidence 4
GPT-4o
$10.00/M
Rank #67/95 · confidence 4
DeepSeek V4 Flash
winner$0.175/M
Rank #6/95 · confidence 4
GPT-4o
$4.38/M
Rank #72/95 · confidence 4
DeepSeek V4 Flash
winner$0.140/M
Rank #10/95 · confidence 4
GPT-4o
$2.50/M
Rank #77/95 · confidence 4
DeepSeek V4 Flash
winner86.4%
Rank #12/74 · confidence 2 · eval date 2026-04-24
GPT-4o
74.0%
Rank #62/74 · confidence 4
DeepSeek V4 Flash
winner27.8%
Rank #20/103 · confidence 4
GPT-4o
2.9%
Rank #103/103 · confidence 4
DeepSeek V4 Flash
winner86.7%
Rank #22/103 · confidence 4
GPT-4o
52.1%
Rank #97/103 · confidence 4
DeepSeek V4 Flash
winner88.4%
Rank #4/70 · confidence 2 · eval date 2026-04-24
GPT-4o
31.7%
Rank #57/70 · confidence 4
DeepSeek V4 Flash
winner83.2
Rank #7/70 · confidence 2 · eval date 2026-04-24
GPT-4o
31.6
Rank #57/70 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner38.6
Rank #23/59 · confidence 2 · eval date 2026-04-24
GPT-4o
8.3
Rank #52/59 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner42.0
Rank #30/63 · confidence 2 · eval date 2026-04-24
GPT-4o
33.3
Rank #52/63 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner42.0%
Rank #37/101 · confidence 4
GPT-4o
33.1%
Rank #73/101 · confidence 4
DeepSeek V4 Flash
winner89.7
Rank #9/58 · confidence 2 · eval date 2026-04-24
GPT-4o
37.9
Rank #49/58 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner27.8
Rank #17/63 · confidence 2 · eval date 2026-04-24
GPT-4o
3.3
Rank #62/63 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner86.7
Rank #19/63 · confidence 2 · eval date 2026-04-24
GPT-4o
54.3
Rank #60/63 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner35.5
Rank #23/58 · confidence 2 · eval date 2026-04-24
GPT-4o
19.7
Rank #51/58 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner37.4
Rank #23/66 · confidence 2 · eval date 2026-04-24
GPT-4o
11.2
Rank #58/66 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner60.9
Rank #33/67 · confidence 2 · eval date 2026-04-24
GPT-4o
33.2
Rank #59/67 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner1251.0
Rank #22/48 · confidence 2 · eval date 2026-04-24
GPT-4o
874.0
Rank #47/48 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner73.5
Rank #12/60 · confidence 2 · eval date 2026-04-24
GPT-4o
34.3
Rank #56/60 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner95.6
Rank #9/58 · confidence 2 · eval date 2026-04-24
GPT-4o
25.1
Rank #52/58 · confidence 1 · eval date 2024-05-13
DeepSeek V4 Flash
winner45.3
Rank #43/68 · confidence 2 · eval date 2026-04-24
GPT-4o
38.3
Rank #50/68 · confidence 1 · eval date 2024-05-13
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek V4 Flash | GPT-4o |
|---|---|---|
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 | GPT-4o |
|---|---|---|
82 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 GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | DeepSeek V4 Flash | GPT-4o |
|---|---|---|
| When to choose each model | DeepSeek V4 Flash DeepSeek V4 Flash is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. | GPT-4o GPT-4o is stronger when you prioritize Average speed, First-token latency. |
TL;DR: DeepSeek V4 Flash leads across 120 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from DeepSeek V4 Flash vs GPT-4o into nearby model comparisons with enough verified LMSpeed data.
| Average speed, First-token latency |
| Model metadata | DeepSeek V4 Flash exposes 1.0M tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. | GPT-4o exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. |
|---|---|---|
| Developer | DeepSeek | OpenAI |
| Context window | 1.0M tokens | 128K tokens |
| Max output | 65.5K tokens | 16.4K tokens |
| Released | Apr 2026 | Nov 2024 |
| Modalities | Input Text Output Text | Input TextImageFile Output Text |
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeWeb search |
| Parameters | No data | No data |
| Tokenizer | DeepSeek | GPT |
| Knowledge cutoff | No data | 2023-10-31 |
| OpenRouter ID | deepseek/deepseek-v4-flash | openai/gpt-4o-2024-11-20 |
| References | No data | No data |
GPT-4o gpt-4o No audit yet |
速创APIWinner: DeepSeek V4 Flash | DeepSeek V4 Flash deepseek-v4-flash Audit score 92 10068100100 | GPT-4o gpt-4o No audit yet |
|---|
GPT-4o
speed / latency
82 tok/s / 3100ms
input / output
No data
CatClaw API20 tests | DeepSeek V4 Flash speed / latency 42 tok/s / 3076ms input / output No data | GPT-4o speed / latency 57 tok/s / 3381ms input / output No data |
|---|
小水管 API20 tests | DeepSeek V4 Flash speed / latency 83 tok/s / 5114ms input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
|---|
速创API20 tests | DeepSeek V4 Flash speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 88 tok/s / 1593ms input / output No data |
|---|
YUNWU API15 tests | DeepSeek V4 Flash speed / latency 74 tok/s / 2820ms input / output No data | GPT-4o speed / latency 58 tok/s / 2583ms input / output No data |
|---|
DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0.012/M / $0.024/M | GPT-4o gpt-4o speed / latency No data input / output $0.171/M / $0.685/M |
DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0.012/M / $0.024/M | GPT-4o gpt-4o-2024-05-13 speed / latency No data input / output $0.214/M / $0.857/M |
DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0.019/M / $0.038/M | GPT-4o gpt-4o-2024-05-13 speed / latency No data input / output $0.685/M / $2.05/M |
DeepSeek V4 Flash DeepSeek-V4-Flash speed / latency No data input / output $0.020/M / $0.020/M | GPT-4o gpt-4o-all speed / latency No data input / output $5.00/M / $15.00/M |
DeepSeek V4 Flash DeepSeek-V4-Flash speed / latency No data input / output $0.020/M / $0.020/M | GPT-4o gpt-4o-all speed / latency No data input / output $5.00/M / $15.00/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
