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d1-ultra (default) vs GPT-6 Luna Decisions (default)

d1-ultra (default) leads on average score with 2.7 vs 2.4. d1-ultra (default) has the lower benchmark cost at $0.003 vs $0.005. GPT-6 Luna Decisions (default) is faster at 495ms vs 531ms, with pass rates of 20.3% vs 13.0%.

Last updated at: 2026-10-17

Compared models

Rank
#421
Total Output Tokens
0
Response Time (avg)
531ms
Total Cost
$0.003
Rank
#427
Total Output Tokens
0
Response Time (avg)
495ms
Total Cost
$0.005
Recommended model d1-ultra (default)

It has the best score here (2.7), while costing about 2.0x less than GPT-6 Luna Decisions (default).

Detailed comparison

Metric d1-ultra d1-ultra default Release: 2026-10-17 GPT-6 Luna Decisions GPT-6 Luna Decisions default Release: 2026-10-07
Score 2.7 2.4
Rank #421 #427
Reliability 10.0 10.0
Consistency 4.9 5.2
Attempts 36/69 36/69
Tests Correct
Attempt pass rate 20.3% 13.0%
Flaky tests 1 0
Total Runs 36 36
Cost per result 0.059 0.159
Total Cost $0.003 $0.005
Input Price $0.042 / 1M $0.100 / 1M
Output Price $0.000 / 1M $0.000 / 1M
Cache Read Price $0.042 / 1M $0.000 / 1M
Cache Write Price N/A $0.000 / 1M
Total Input Tokens 55,956 47,583
Output Tokens 0 0
Reasoning Tokens 0 0
Response Time (avg) 531ms 495ms
Response Time (max) 697ms 842ms
Response Time (total) 6.38s 5.94s
Parameters - ~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.

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
d1-ultra 5.3 4.3 55.6% 1 561ms 25,605 0 0
GPT-6 Luna Decisions 2.5 6.7 0.0% 0 447ms 22,197 0 0

Switch Comparison Pair

Command A+lowvsd1-ultradefaultCommand A+nonevsd1-ultradefaultCommand A+highvsd1-ultradefaultCommand A+lowvsGPT-6 Luna DecisionsdefaultCommand A+nonevsGPT-6 Luna DecisionsdefaultGemini 3 Flash PreviewhighvsGPT-6 Luna Decisionsdefaultd1-ultradefaultvsXing4.0 29b A4bnoneFree AvailableCommand A+mediumvsd1-ultradefaultd1-ultradefaultvsGrok 4.20noneCommand A+highvsGPT-6 Luna DecisionsdefaultGemini 3 Flash Previewhighvsd1-ultradefaultGPT-6 Luna DecisionsdefaultvsXing4.0 29b A4bnoneFree Available