Compare · ModelsLive · 2 picked · head to head
o3 Pro vs Grok 4
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
o3 Pro wins on 4/6 benchmarks
o3 Pro wins 4 of 6 shared benchmarks. Leads in coding · knowledge.
Category leads
coding·o3 Proreasoning·Grok 4knowledge·o3 Pro
Hype vs Reality
Attention vs performance
o3 Pro
#35 by perf·no signal
Grok 4
#73 by perf·no signal
Best value
Grok 4
5.0x better value than o3 Pro
o3 Pro
1.2 pts/$
$50.00/M
Grok 4
6.1 pts/$
$9.00/M
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
xAI
$250.0B·Tier 1
Head to head
6 benchmarks · 2 models
o3 ProGrok 4
Aider polyglot
o3 Pro leads by +5.3
Aider Polyglot · measures how well AI models can edit code across multiple programming languages using the Aider coding assistant framework.
o3 Pro
84.9
Grok 4
79.6
ARC-AGI
Grok 4 leads by +7.4
ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization.
o3 Pro
59.3
Grok 4
66.7
ARC-AGI-2
Grok 4 leads by +11.1
ARC-AGI-2 · the second iteration of the Abstraction and Reasoning Corpus, testing novel pattern recognition and abstract reasoning without prior training data.
o3 Pro
4.9
Grok 4
16.0
Fiction.LiveBench
o3 Pro leads by +2.8
Fiction.LiveBench · a continuously updated benchmark using recently published fiction to test reading comprehension and reasoning, preventing data contamination.
o3 Pro
97.2
Grok 4
94.4
Lech Mazur Writing
o3 Pro leads by +5.6
Lech Mazur Writing · evaluates creative writing ability, assessing prose quality, narrative coherence, and stylistic sophistication.
o3 Pro
86.3
Grok 4
80.7
WeirdML
o3 Pro leads by +12.5
WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns.
o3 Pro
58.2
Grok 4
45.7
Full benchmark table
| Benchmark | o3 Pro | Grok 4 |
|---|---|---|
Aider polyglot Aider Polyglot · measures how well AI models can edit code across multiple programming languages using the Aider coding assistant framework. | 84.9 | 79.6 |
ARC-AGI ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization. | 59.3 | 66.7 |
ARC-AGI-2 ARC-AGI-2 · the second iteration of the Abstraction and Reasoning Corpus, testing novel pattern recognition and abstract reasoning without prior training data. | 4.9 | 16.0 |
Fiction.LiveBench Fiction.LiveBench · a continuously updated benchmark using recently published fiction to test reading comprehension and reasoning, preventing data contamination. | 97.2 | 94.4 |
Lech Mazur Writing Lech Mazur Writing · evaluates creative writing ability, assessing prose quality, narrative coherence, and stylistic sophistication. | 86.3 | 80.7 |
WeirdML WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns. | 58.2 | 45.7 |
Pricing · per 1M tokens · projected $/mo at 10M tokens