Compare · ModelsLive · 2 picked · head to head

GPT-5.1-Codex-Max vs Gemini 3.1 Pro Preview

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 · Gemini 3.1 Pro Preview are still filling in scores.

Hype vs Reality
GPT-5.1-Codex-Max
#12 by perf·no signal
QUIET
Gemini 3.1 Pro Preview
#38 by perf·no signal
QUIET
Best value
1.5x better value than Gemini 3.1 Pro Preview
GPT-5.1-Codex-Max
12.8 pts/$
$5.63/M
Gemini 3.1 Pro Preview
8.7 pts/$
$7.00/M
Vendor risk
OpenAI logo
OpenAI
$840.0B·Tier 1
Medium risk
Google DeepMind logo
Google DeepMind
$4.00T·Tier 1
Low 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
Google DeepMind logoGemini 3.1 Pro Preview$2.00$12.001.0M tokens (~524 books)$45.00