Navigate
Advertise here

GPT-6 Luna (low) vs Grok 4.3 (medium)

The average score is effectively tied at 7.0 vs 7.0. GPT-6 Luna (low) has the lower benchmark cost at $0.020 vs $0.741. GPT-6 Luna (low) is faster at 21.96s vs 44.21s, with pass rates of 62.1% vs 66.7%.

Last updated at: 2026-09-23

Compared models

Rank
#159
Total Output Tokens
22,605
Response Time (avg)
21.96s
Total Cost
$0.020
Rank
#157
Total Output Tokens
225,904
Response Time (avg)
44.21s
Total Cost
$0.741
Recommended model GPT-6 Luna (low)

It has the best score here (7.0), while costing about 38.3x less than Grok 4.3 (medium).

Detailed comparison

Metric GPT-6 Luna GPT-6 Luna low Release: 2026-09-23 Grok 4.3 Grok 4.3 medium Release: 2026-05-01
Score 7.0 7.0
Rank #159 #157
Reliability 9.6 10.0
Consistency 8.5 8.2
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 62.1% 66.7%
Flaky tests 4 5
Total Runs 66 66
Cost per result 0.176 6.168
Total Cost $0.020 $0.741
Input Price $0.100 / 1M $1.250 / 1M
Output Price $0.500 / 1M $2.500 / 1M
Total Input Tokens 80,159 140,244
Output Tokens 4,623 13,739
Reasoning Tokens 17,982 212,165
Response Time (avg) 21.96s 44.21s
Response Time (max) 89.37s 216.69s
Response Time (total) 483.19s 972.64s
Parameters ~400B total (~17B active) ~1.5T total (~150B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#159 GPT-6 Luna

low
Cost
$0.002
Time
19.2s
Tokens
2,598 tok

#157 SpaceXAI: Grok 4.3

medium
Cost
$0.009
Time
19.0s
Tokens
3,661 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
GPT-6 Luna 6.0 7.2 55.6% 1 15.39s 7,302 493 6,655
Grok 4.3 5.9 7.7 44.4% 1 41.23s 8,340 1,028 31,226

Quick Compare

Switch Comparison Pair