Skip to content
VECTOR WIREAI INTELLIGENCE
UTC

Claude 3.5 Sonnet vs Grok 2

Anthropic · released

Wins 2 of 3 areas

Coding · Reasoning

SpaceXAI · released

Wins 0 of 3 areas

—

Claude 3.5 Sonnet is the stronger all-rounder.

Scores updated · 10 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.

Claude 3.5 Sonnet$3.00 to read · $15.00 to write$18Price from Artificial Analysis
Grok 2No current price is tracked.

The biggest differences

The tests each model wins by the widest margin, up to three each. Scores are out of 100.

Where Claude 3.5 Sonnet pulls ahead

  • Graduate-level biology, physics and chemistry questionsGPQA Diamond+5points aheadClaude 3.5 Sonnet56Grok 251
  • Common-sense trick questionsSimpleBench+4.8points aheadClaude 3.5 Sonnet27.5Grok 222.7
  • Code for real scientific research problemsSciCode+3.1points aheadClaude 3.5 Sonnet31.6Grok 228.5

Where Grok 2 pulls ahead

  • Math problems shown in pictures and chartsMathVista+1.3points aheadGrok 269Claude 3.5 Sonnet67.7

Every test, side by side

All 10 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingClaude 3.5 Sonnet
  • SciCodeClaude 3.5 Sonnet by 3.131.628.5+3.1

Full coding ranking

ReasoningClaude 3.5 Sonnet

Full reasoning ranking

Images and chartsEven
  • MMMUClaude 3.5 Sonnet by 2.268.366.1+2.2
  • MathVistaGrok 2 by 1.367.769+1.3

Full images and charts ranking

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.

Questions people ask

Which is better, Claude 3.5 Sonnet or Grok 2?

Claude 3.5 Sonnet wins two of the three areas where both have results: coding and reasoning. Grok 2 wins none. They are level on images and charts.

Which is better for coding?

Claude 3.5 Sonnet. It wins the one coding test both models report.

How do you compare the two?

We use the 10 benchmark tests both models have published scores on. The verdict counts the 6 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.