Compare · ModelsLive · 2 picked · head to head
Gemini 3 Pro vs GPT-5 Chat
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Gemini 3 Pro wins on 5/6 benchmarks
Gemini 3 Pro wins 5 of 6 shared benchmarks. Leads in arena · knowledge · language.
Category leads
arena·Gemini 3 Proknowledge·Gemini 3 Prolanguage·Gemini 3 Promath·GPT-5 Chatreasoning·Gemini 3 Pro
Hype vs Reality
Attention vs performance
Gemini 3 Pro
#38 by perf·no signal
GPT-5 Chat
#1 by perf·#1 by attention
Vendor risk
Who is behind the model
Google DeepMind
$4.00T·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
6 benchmarks · 2 models
Gemini 3 ProGPT-5 Chat
Chatbot Arena Elo · Overall
Gemini 3 Pro leads by +60.1
Gemini 3 Pro
1486.2
GPT-5 Chat
1426.0
HELM · GPQA
Gemini 3 Pro leads by +1.2
Gemini 3 Pro
80.3
GPT-5 Chat
79.1
HELM · IFEval
Gemini 3 Pro leads by +0.1
Gemini 3 Pro
87.6
GPT-5 Chat
87.5
HELM · MMLU-Pro
Gemini 3 Pro leads by +4.0
Gemini 3 Pro
90.3
GPT-5 Chat
86.3
HELM · Omni-MATH
GPT-5 Chat leads by +9.1
Gemini 3 Pro
55.6
GPT-5 Chat
64.7
HELM · WildBench
Gemini 3 Pro leads by +0.2
Gemini 3 Pro
85.9
GPT-5 Chat
85.7
Full benchmark table
| Benchmark | Gemini 3 Pro | GPT-5 Chat |
|---|---|---|
Chatbot Arena Elo · Overall | 1486.2 | 1426.0 |
HELM · GPQA | 80.3 | 79.1 |
HELM · IFEval | 87.6 | 87.5 |
HELM · MMLU-Pro | 90.3 | 86.3 |
HELM · Omni-MATH | 55.6 | 64.7 |
HELM · WildBench | 85.9 | 85.7 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| Gemini 3 Pro | — | — | — | — |
| GPT-5 Chat | $1.25 | $10.00 | 128K tokens (~64 books) | $34.38 |