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GPT-6 Luna (medium) vs Grok 4.6 (low)

GPT-6 Luna (medium) leads on average score with 8.3 vs 6.9. GPT-6 Luna (medium) has the lower benchmark cost at $0.047 vs $0.781. Grok 4.6 (low) is faster at 16.44s vs 18.07s, with pass rates of 73.9% vs 66.7%.

Last updated at: 2026-11-10

Compared models

Rank
#118
Total Output Tokens
53,161
Response Time (avg)
18.07s
Total Cost
$0.047
Rank
#218
Total Output Tokens
42,315
Response Time (avg)
16.44s
Total Cost
$0.781
Recommended model GPT-6 Luna (medium)

It has the best score here (8.3), while costing about 16.6x less than Grok 4.6 (low).

Detailed comparison

Metric GPT-6 Luna GPT-6 Luna medium Release: 2026-09-23 Grok 4.6 Grok 4.6 low Release: 2026-08-12
Score 8.3 6.9
Rank #118 #218
Reliability 10.0 10.0
Consistency 8.9 9.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 73.9% 66.7%
Flaky tests 3 1
Total Runs 69 69
Cost per result 0.313 5.205
Total Cost $0.047 $0.781
Input Price $0.100 / 1M $2.000 / 1M
Output Price $0.500 / 1M $6.000 / 1M
Cache Read Price $0.010 / 1M $0.500 / 1M
Cache Write Price $0.125 / 1M N/A
Total Input Tokens 203,193 263,427
Output Tokens 5,751 6,006
Reasoning Tokens 47,410 36,309
Response Time (avg) 18.07s 16.44s
Response Time (max) 66.44s 57.97s
Response Time (total) 415.53s 378.14s
Parameters ~400B total (~17B active) ~1.7T total (~170B active)
Availability Closed Closed

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#118 GPT-6 Luna

medium
Cost
$0.002
Time
23.6s
Tokens
2,966 tok

#218 SpaceXAI: Grok 4.6

low
Cost
$0.011
Time
26.0s
Tokens
1,941 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 6.6 4.6 77.8% 2 23.63s 7,302 438 10,222
Grok 4.6 5.5 7.1 44.4% 1 21.69s 9,579 349 7,740

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