Compare · ModelsLive · 2 picked · head to head

GPT-5.1-Codex-Max vs DeepSeek V4 Pro

Side by side · benchmarks, pricing, and signals you can act on.

Winner summary

Not enough overlapping benchmarks to declare a winner yet · GPT-5.1-Codex-Max · DeepSeek V4 Pro are still filling in scores.

Hype vs Reality
GPT-5.1-Codex-Max
#12 by perf·no signal
QUIET
DeepSeek V4 Pro
no bench·no signal
QUIET
Best value
GPT-5.1-Codex-Max
12.8 pts/$
$5.63/M
DeepSeek V4 Pro
$0.65/M
Vendor risk
One or more vendors flagged
OpenAI logo
OpenAI
$840.0B·Tier 1
Medium risk
DeepSeek logo
DeepSeek
$3.4B·Tier 1
Higher risk
Pricing · per 1M tokens · projected $/mo at 10M tokens
ModelInputOutputContextProjected $/mo
OpenAI logoGPT-5.1-Codex-Max$1.25$10.00400K tokens (~200 books)$34.38
DeepSeek logoDeepSeek V4 Pro$0.43$0.871.0M tokens (~524 books)$5.44