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GPT-6 Luna (medium) vs Grok Build 0.1 (medium)

GPT-6 Luna (medium) leads on average score with 8.3 vs 6.7. GPT-6 Luna (medium) has the lower benchmark cost at $0.047 vs $1.419. GPT-6 Luna (medium) is faster at 18.07s vs 55.13s, with pass rates of 73.9% vs 58.0%.

Last updated at: 2026-10-03

Compared models

Rank
#79
Total Output Tokens
53,161
Response Time (avg)
18.07s
Total Cost
$0.047
Rank
#178
Total Output Tokens
529,806
Response Time (avg)
55.13s
Total Cost
$1.419
Recommended model GPT-6 Luna (medium)

It has the best score here (8.3), while costing about 30.2x less than Grok Build 0.1 (medium).

Detailed comparison

Metric GPT-6 Luna GPT-6 Luna medium Release: 2026-09-23 Grok Build 0.1 Grok Build 0.1 medium Release: 2026-05-21
Score 8.3 6.7
Rank #79 #178
Reliability 10.0 10.0
Consistency 8.9 9.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 73.9% 58.0%
Flaky tests 3 1
Total Runs 69 69
Cost per result 0.313 10.910
Total Cost $0.047 $1.419
Input Price $0.100 / 1M $1.000 / 1M
Output Price $0.500 / 1M $2.000 / 1M
Cache Read Price $0.010 / 1M $0.200 / 1M
Cache Write Price $0.125 / 1M N/A
Total Input Tokens 203,193 358,616
Output Tokens 5,751 9,651
Reasoning Tokens 47,410 520,155
Response Time (avg) 18.07s 55.13s
Response Time (max) 66.44s 252.69s
Response Time (total) 415.53s 1268.10s
Parameters ~400B total (~17B active) ~300B total (~30B 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.

#79 GPT-6 Luna

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

#178 SpaceXAI: Grok Build 0.1

medium
Cost
$0.028
Time
81.3s
Tokens
14,009 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 Build 0.1 5.7 9.7 33.3% 0 108.46s 8,304 1,138 161,452

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