Compare · ModelsLive · 2 picked · head to head
Gemini 3.1 Pro Preview vs GPT-5 Chat
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Gemini 3.1 Pro Preview wins on 1/1 benchmarks
Gemini 3.1 Pro Preview wins 1 of 1 shared benchmarks. Leads in arena.
Category leads
arena·Gemini 3.1 Pro Preview
Hype vs Reality
Attention vs performance
Gemini 3.1 Pro Preview
#137 by perf·#6 by attention
GPT-5 Chat
#4 by perf·#4 by attention
Best value
GPT-5 Chat
2.1x better value than Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview
6.9 pts/$
$7.00/M
GPT-5 Chat
14.6 pts/$
$5.63/M
Vendor risk
Who is behind the model
Google DeepMind
$4.20T·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
1 benchmark · 2 models
Gemini 3.1 Pro PreviewGPT-5 Chat
Chatbot Arena Elo · Overall
Gemini 3.1 Pro Preview leads by +60.4
Gemini 3.1 Pro Preview
1487.0
GPT-5 Chat
1426.6
Full benchmark table
| Benchmark | Gemini 3.1 Pro Preview | GPT-5 Chat |
|---|---|---|
Chatbot Arena Elo · Overall | 1487.0 | 1426.6 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $2.00 | $12.00 | 1.0M tokens (~524 books) | $45.00 | |
| $1.25 | $10.00 | 128K tokens (~64 books) | $34.38 |