GPT-4o wins more areas, narrowly.
Scores updated · 9 tests both models report · How we compare
Where each one wins
Tests won in each of the three areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
Coding rests on a single test.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where GPT-4o pulls ahead
- College exam questions with charts, maps and diagramsMMMU+6.1points ahead
- Code for real scientific research problemsSciCode+4.8points ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+1.6points ahead
Where Grok 2 pulls ahead
- Math problems shown in pictures and chartsMathVista+7.6points ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+1.3points ahead
Every test, side by side
All 9 tests both models report. The winning score is in its model's colour; marks a score checked independently.
ReasoningEven
- GPQA DiamondGPT-4o by 1.652.651+1.6
- Humanity's Last ExamGrok 2 by 1.31.83.1+1.3
Images and chartsEven
Other results4 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- HumanEvalGPT-4o by 1.890.288.4+1.8
- DocVQAtie92.893.6tie
- MMLU-Protie74.775.5tie
- AA Intelligencetie7.37.1tie
Questions people ask
Which is better, GPT-4o or Grok 2?
GPT-4o wins one of the three areas where both have results: coding. Grok 2 wins none. They are level on reasoning and images and charts.
Which is better for coding?
GPT-4o. It wins the one coding test both models report.
How do you compare the two?
We use the 9 benchmark tests both models have published scores on. The verdict counts the 5 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 4 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.