Compare · ModelsLive · 2 picked · head to head
GPT-5 Mini vs DeepSeek V4 Flash
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
DeepSeek V4 Flash wins on 6/8 benchmarks
DeepSeek V4 Flash wins 6 of 8 shared benchmarks. Leads in coding · reasoning · math.
Category leads
coding·DeepSeek V4 Flashreasoning·DeepSeek V4 Flashlanguage·GPT-5 Minimath·DeepSeek V4 Flashknowledge·DeepSeek V4 Flash
Hype vs Reality
Attention vs performance
GPT-5 Mini
#90 by perf·no signal
DeepSeek V4 Flash
#31 by perf·no signal
Best value
DeepSeek V4 Flash
11.0x better value than GPT-5 Mini
GPT-5 Mini
48.3 pts/$
$1.13/M
DeepSeek V4 Flash
533.3 pts/$
$0.13/M
Vendor risk
Mixed exposure
One or more vendors flagged
OpenAI
$840.0B·Tier 1
DeepSeek
$3.4B·Tier 1
Head to head
8 benchmarks · 2 models
GPT-5 MiniDeepSeek V4 Flash
LiveBench · Agentic Coding
DeepSeek V4 Flash leads by +15.0
GPT-5 Mini
35.0
DeepSeek V4 Flash
50.0
LiveBench · Coding
GPT-5 Mini leads by +6.8
GPT-5 Mini
76.1
DeepSeek V4 Flash
69.2
LiveBench · Data Analysis
DeepSeek V4 Flash leads by +18.4
GPT-5 Mini
49.6
DeepSeek V4 Flash
68.0
LiveBench · If
GPT-5 Mini leads by +1.1
GPT-5 Mini
64.2
DeepSeek V4 Flash
63.1
LiveBench · Language
DeepSeek V4 Flash leads by +1.0
GPT-5 Mini
69.2
DeepSeek V4 Flash
70.1
LiveBench · Mathematics
DeepSeek V4 Flash leads by +5.3
GPT-5 Mini
74.4
DeepSeek V4 Flash
79.7
LiveBench · Overall
DeepSeek V4 Flash leads by +6.2
GPT-5 Mini
61.0
DeepSeek V4 Flash
67.3
LiveBench · Reasoning
DeepSeek V4 Flash leads by +11.9
GPT-5 Mini
58.6
DeepSeek V4 Flash
70.6
Full benchmark table
| Benchmark | GPT-5 Mini | DeepSeek V4 Flash |
|---|---|---|
LiveBench · Agentic Coding | 35.0 | 50.0 |
LiveBench · Coding | 76.1 | 69.2 |
LiveBench · Data Analysis | 49.6 | 68.0 |
LiveBench · If | 64.2 | 63.1 |
LiveBench · Language | 69.2 | 70.1 |
LiveBench · Mathematics | 74.4 | 79.7 |
LiveBench · Overall | 61.0 | 67.3 |
LiveBench · Reasoning | 58.6 | 70.6 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.25 | $2.00 | 400K tokens (~200 books) | $6.88 | |
| $0.08 | $0.17 | 1.0M tokens (~524 books) | $1.05 |