Compare · ModelsLive · 2 picked · head to head
Gemini 3 Pro vs Grok 4.3
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Gemini 3 Pro wins on 4/5 benchmarks
Gemini 3 Pro wins 4 of 5 shared benchmarks. Leads in speed · arena.
Category leads
speed·Gemini 3 Proarena·Gemini 3 Pro
Hype vs Reality
Attention vs performance
Gemini 3 Pro
#52 by perf·no signal
Grok 4.3
#32 by perf·no signal
Vendor risk
Who is behind the model
Google DeepMind
$4.00T·Tier 1
xAI
$250.0B·Tier 1
Head to head
5 benchmarks · 2 models
Gemini 3 ProGrok 4.3
Artificial Analysis · Agentic Index
Gemini 3 Pro leads by +20.9
Artificial Analysis Agentic Index · a composite score measuring how well a model performs in agentic workflows · multi-step tool use, planning, error recovery, and autonomous task completion. Aggregates results from multiple agentic benchmarks including SWE-bench, tool-use tests, and planning evaluations. The canonical single-number metric for "how good is this model as an agent?"
Gemini 3 Pro
45.0
Grok 4.3
24.1
Artificial Analysis · Coding Index
Grok 4.3 leads by +2.9
Artificial Analysis Coding Index · a composite score that aggregates performance across multiple coding benchmarks into a single index. Tracks code generation quality, debugging ability, multi-language competence, and real-world software engineering tasks. Used by Artificial Analysis to rank model coding capability in a normalized, comparable format. Useful for developers choosing between models for coding-heavy workloads.
Gemini 3 Pro
39.4
Grok 4.3
42.3
Artificial Analysis · Quality Index
Gemini 3 Pro leads by +3.7
Gemini 3 Pro
41.3
Grok 4.3
37.6
Chatbot Arena Elo · Coding
Gemini 3 Pro leads by +74.8
Gemini 3 Pro
1438.8
Grok 4.3
1364.0
Chatbot Arena Elo · Overall
Gemini 3 Pro leads by +41.7
Gemini 3 Pro
1485.7
Grok 4.3
1444.0
Full benchmark table
| Benchmark | Gemini 3 Pro | Grok 4.3 |
|---|---|---|
Artificial Analysis · Agentic Index Artificial Analysis Agentic Index · a composite score measuring how well a model performs in agentic workflows · multi-step tool use, planning, error recovery, and autonomous task completion. Aggregates results from multiple agentic benchmarks including SWE-bench, tool-use tests, and planning evaluations. The canonical single-number metric for "how good is this model as an agent?" | 45.0 | 24.1 |
Artificial Analysis · Coding Index Artificial Analysis Coding Index · a composite score that aggregates performance across multiple coding benchmarks into a single index. Tracks code generation quality, debugging ability, multi-language competence, and real-world software engineering tasks. Used by Artificial Analysis to rank model coding capability in a normalized, comparable format. Useful for developers choosing between models for coding-heavy workloads. | 39.4 | 42.3 |
Artificial Analysis · Quality Index | 41.3 | 37.6 |
Chatbot Arena Elo · Coding | 1438.8 | 1364.0 |
Chatbot Arena Elo · Overall | 1485.7 | 1444.0 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| — | — | — | — | |
| $1.25 | $2.50 | 1.0M tokens (~500 books) | $15.63 |