Compare · ModelsLive · 2 picked · head to head
DeepSeek V4 Pro vs GPT-5.5 Pro
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-5.5 Pro wins on 0/0 benchmarks
Not enough overlapping benchmarks to declare a winner yet · DeepSeek V4 Pro · GPT-5.5 Pro are still filling in scores.
Hype vs Reality
Attention vs performance
DeepSeek V4 Pro
#13 by perf·no signal
GPT-5.5 Pro
#1 by perf·no signal
Best value
DeepSeek V4 Pro
134.9x better value than GPT-5.5 Pro
DeepSeek V4 Pro
112.8 pts/$
$0.65/M
GPT-5.5 Pro
0.8 pts/$
$105.00/M
Vendor risk
Mixed exposure
One or more vendors flagged
DeepSeek
$3.4B·Tier 1
OpenAI
$840.0B·Tier 1
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.43 | $0.87 | 1.0M tokens (~524 books) | $5.44 | |
| $30.00 | $180.00 | 400K tokens (~200 books) | $675.00 |