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Ember-1 vs GPT-6 Luna (medium)

GPT-6 Luna (medium) leads on average score with 8.3 vs 5.4. GPT-6 Luna (medium) has the lower benchmark cost at $0.047 vs $0.786. GPT-6 Luna (medium) is faster at 18.07s vs 22.65s, with pass rates of 43.5% vs 73.9%.

Last updated at: 2026-10-19

Compared models

Rank
#329
Total Output Tokens
11,832
Response Time (avg)
22.65s
Total Cost
$0.786
Rank
#95
Total Output Tokens
53,161
Response Time (avg)
18.07s
Total Cost
$0.047
Recommended model GPT-6 Luna (medium)

It has the best score here (8.3), while costing about 16.7x less than Ember-1.

Detailed comparison

Metric Ember-1 Ember-1 none Release: 2026-09-28 GPT-6 Luna GPT-6 Luna medium Release: 2026-09-23
Score 5.4 8.3
Rank #329 #95
Reliability 8.8 10.0
Consistency 8.6 8.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 43.5% 73.9%
Flaky tests 4 3
Total Runs 69 69
Cost per result 9.817 0.313
Total Cost $0.786 $0.047
Input Price $3.000 / 1M $0.100 / 1M
Output Price $15.000 / 1M $0.500 / 1M
Cache Read Price $0.300 / 1M $0.010 / 1M
Cache Write Price N/A $0.125 / 1M
Total Input Tokens 202,617 203,193
Output Tokens 11,832 5,751
Reasoning Tokens 0 47,410
Response Time (avg) 22.65s 18.07s
Response Time (max) 93.12s 66.44s
Response Time (total) 520.91s 415.53s
Parameters ~2.8T total (~104B active) ~400B total (~17B 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.

#329 Ember-1

none
Cost
$0.156
Time
224.6s
Tokens
10,555 tok

#95 GPT-6 Luna

medium
Cost
$0.002
Time
23.6s
Tokens
2,966 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
Ember-1 5.5 10.0 33.3% 0 1.94s 7,485 393 0
GPT-6 Luna 6.6 4.6 77.8% 2 23.63s 7,302 438 10,222

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