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Grok 4.5 (medium) vs Grok 4.6 (medium)

The average score is effectively tied at 8.3 vs 8.3. Grok 4.6 (medium) has the lower benchmark cost at $1.656 vs $1.928. Grok 4.5 (medium) is faster at 61.71s vs 71.86s, with pass rates of 78.8% vs 80.3%.

Last updated at: 2026-08-12

Rank
#39
Total Output Tokens
280,567
Response Time (avg)
61.71s
Total Cost
$1.928
Rank
#40
Total Output Tokens
240,338
Response Time (avg)
71.86s
Total Cost
$1.656
Recommended model Grok 4.6 (medium)

It has the strongest score in this comparison (8.3) and the best overall balance of cost and response time across all 2 models.

Detailed comparison

Metric Grok 4.5 Grok 4.5 medium Release: 2026-07-08 Grok 4.6 Grok 4.6 medium Release: 2026-08-12
Score 8.3 8.3
Rank #39 #40
Reliability 10.0 10.0
Consistency 8.9 8.2
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 78.8% 80.3%
Flaky tests 3 5
Total Runs 66 66
Cost per result 12.049 11.038
Total Cost $1.928 $1.656
Input Price $2.000 / 1M $2.000 / 1M
Output Price $6.000 / 1M $6.000 / 1M
Total Input Tokens 122,146 106,778
Output Tokens 5,514 4,811
Reasoning Tokens 275,053 235,527
Response Time (avg) 61.71s 71.86s
Response Time (max) 436.38s 514.35s
Response Time (total) 1357.56s 1580.96s
Parameters ~1.7T total (~170B 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.

#39 xAI: Grok 4.5

medium
Cost
$0.044
Time
59.4s
Tokens
7,512 tok

#40 SpaceXAI: Grok 4.6

medium
Cost
$0.028
Time
72.1s
Tokens
4,771 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
Grok 4.5 7.6 7.2 77.8% 1 155.69s 9,579 390 104,634
Grok 4.6 8.2 7.2 88.9% 1 120.05s 9,579 351 64,226

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