Data points: 87
Model compare
The readout for DeepSeek V4 Flash and GPT-4, before the detailed comparison sheet.
Weighted outcome: GPT-4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-4
GPT-4 has the higher weighted result; Model A / B score 12 to 88.
Evidence depth
87 data points
Includes 3 benchmark rows, 3 audit samples, and 8 provider examples.
Selection signal
Start with GPT-4
The charts below split 14 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 GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | DeepSeek V4 Flash | GPT-4 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 12.0 pts | 88.0 pts |
| Benchmark category leads | 0 categories | 1 categories |
| Operational advantages | Cheapest input price, Average speed, Provider coverage | First-token latency, Free providers |
| Context window | 1.0M tokens | 8.2K tokens |
| Max output | 65.5K tokens | 4.1K 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 | GPT-4 |
|---|---|---|
| Developer | DeepSeek | OpenAI |
| Released | Apr 2026 | May 2023 |
| Parameters | No data | No data |
| Tokenizer | DeepSeek | GPT |
| Knowledge cutoff | No data | 2021-09-30 |
| OpenRouter ID | deepseek/deepseek-v4-flash | openai/gpt-4 |
| References | No data | No data |
This report only uses LMSpeed data for DeepSeek V4 Flash and GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
DeepSeek V4 Flash
DeepSeek V4 Flash has these operational advantages: Cheapest input price, Average speed, Provider coverage.
GPT-4
GPT-4 is stronger in benchmark categories (Coding) and operational dimensions (First-token latency, Free providers).
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
45.8
Avg. score
GPT-4
49.5
DeepSeek V4 Flash
GPT-4 leads by 5.0
DeepSeek V4 Flash
DeepSeek V4 Flash
DeepSeek V4 Flash
No data
No data
DeepSeek V4 Flash
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
DeepSeek V4 Flash
winner$0.280/M
Rank #6/162 · confidence 4
GPT-4
$60.00/M
Rank #155/162 · confidence 4
DeepSeek V4 Flash
winner$0.175/M
Rank #11/162 · confidence 4
GPT-4
$37.50/M
Rank #160/162 · confidence 4
DeepSeek V4 Flash
winner$0.140/M
Rank #17/162 · confidence 4
GPT-4
$30.00/M
Rank #160/162 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek V4 Flash | GPT-4 |
|---|---|---|
Winner: DeepSeek V4 Flash | DeepSeek V4 Flash deepseek-v4-flash Audit score 92 1008484100 | GPT-4 gpt-4-0125-preview No audit yet |
Winner: DeepSeek V4 Flash | DeepSeek V4 Flash deepseek-v4-flash Audit score 92 10068100100 | GPT-4 gpt-4-1106-preview No audit yet |
Winner: DeepSeek V4 Flash | DeepSeek V4 Flash deepseek-v4-flash Audit score 85 846886100 | GPT-4 gpt-4-1106-preview 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 | GPT-4 |
|---|---|---|
20 tests | DeepSeek V4 Flash speed / latency 83 tok/s / 5114ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
10 tests | DeepSeek V4 Flash speed / latency 143 tok/s / 1761ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
10 tests | DeepSeek V4 Flash speed / latency 49 tok/s / 5413ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
10 tests | DeepSeek V4 Flash speed / latency 74 tok/s / 2820ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
10 tests | DeepSeek V4 Flash speed / latency 54 tok/s / 3263ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0.012/M/$0.024/M | GPT-4 gpt-4 speed / latency No data input / output $2.05/M | |
DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0/request | GPT-4 gpt-4-0125-preview speed / latency No data input / output $0/request | |
DeepSeek V4 Flash deepseek-v4-flash speed / latency No data input / output $0.019/M/$0.038/M | GPT-4 gpt-4-32k-0613 speed / latency No data input / output $8.22/M |
Weighted outcome: GPT-4. 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 mode |
|---|
