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Claude Sonnet 5 (medium) vs Grok 4.5 (low)

Grok 4.5 (low) leads on average score with 8.4 vs 8.2. Claude Sonnet 5 (medium) has the lower benchmark cost at $0.922 vs $0.945. Claude Sonnet 5 (medium) is faster at 12.54s vs 16.17s, with pass rates of 75.8% vs 77.3%.

Last updated at: 2026-08-20

Rank
#47
Total Output Tokens
63,204
Response Time (avg)
12.54s
Total Cost
$0.922
Rank
#40
Total Output Tokens
115,489
Response Time (avg)
16.17s
Total Cost
$0.945
Recommended model Grok 4.5 (low)

It has the strongest score in this comparison (8.4) and the best overall balance of cost and response time across all 2 models.

Detailed comparison

Metric Claude Sonnet 5 Claude Sonnet 5 medium Release: 2026-06-30 Grok 4.5 Grok 4.5 low Release: 2026-07-08
Score 8.2 8.4
Rank #47 #40
Reliability 10.0 10.0
Consistency 9.0 9.3
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 75.8% 77.3%
Flaky tests 3 2
Total Runs 66 66
Cost per result 6.144 5.901
Total Cost $0.922 $0.945
Input Price $2.000 / 1M $2.000 / 1M
Output Price $10.000 / 1M $6.000 / 1M
Total Input Tokens 145,953 125,605
Output Tokens 52,330 7,505
Reasoning Tokens 10,874 107,984
Response Time (avg) 12.54s 16.17s
Response Time (max) 66.71s 205.28s
Response Time (total) 275.90s 355.67s
Parameters ~1T total (~100B active) ~1.7T total (~170B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#47 Claude Sonnet 5

medium
Cost
$0.007
Time
6.4s
Tokens
832 tok

#40 SpaceXAI: Grok 4.5

low
Cost
$0.011
Time
12.4s
Tokens
2,018 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Sonnet 5 9.0 7.9 88.9% 1 17.28s 10,590 13,153 2,379
Grok 4.5 10.0 10.0 100.0% 0 13.72s 9,579 303 15,641

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