Compare · ModelsLive · 2 picked · head to head
DeepSeek V4 Flash vs GPT-5
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-5 wins on 4/4 benchmarks
GPT-5 wins 4 of 4 shared benchmarks. Leads in general · reasoning · coding.
Category leads
general·GPT-5reasoning·GPT-5coding·GPT-5
Hype vs Reality
Attention vs performance
DeepSeek V4 Flash
#39 by perf·#6 by attention
GPT-5
#100 by perf·#4 by attention
Best value
DeepSeek V4 Flash
10.0x better value than GPT-5
DeepSeek V4 Flash
94.4 pts/$
$0.65/M
GPT-5
9.4 pts/$
$5.63/M
Vendor risk
Mixed exposure
One or more vendors flagged
DeepSeek
$3.4B·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
4 benchmarks · 2 models
DeepSeek V4 FlashGPT-5
Dtbench
GPT-5 leads by +7.1
DeepSeek V4 Flash
77.3
GPT-5
84.5
Lmca
GPT-5 leads by +4.8
DeepSeek V4 Flash
42.2
GPT-5
47.0
SimpleBench
GPT-5 leads by +12.5
SimpleBench · tests fundamental reasoning capabilities with straightforward problems designed to expose gaps in basic logical and spatial thinking.
DeepSeek V4 Flash
35.6
GPT-5
48.0
WeirdML
GPT-5 leads by +15.1
WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns.
DeepSeek V4 Flash
45.6
GPT-5
60.7
Full benchmark table
| Benchmark | DeepSeek V4 Flash | GPT-5 |
|---|---|---|
Dtbench | 77.3 | 84.5 |
Lmca | 42.2 | 47.0 |
SimpleBench SimpleBench · tests fundamental reasoning capabilities with straightforward problems designed to expose gaps in basic logical and spatial thinking. | 35.6 | 48.0 |
WeirdML WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns. | 45.6 | 60.7 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.03 | $1.28 | 1.0M tokens (~524 books) | $3.39 | |
| $1.25 | $10.00 | 400K tokens (~200 books) | $34.38 |