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GPT-5.6 Luna vs Inkling Small (low)

GPT-5.6 Luna leads on average score with 5.3 vs 5.2. GPT-5.6 Luna has the lower benchmark cost at $0.056 vs $0.059. Inkling Small (low) is faster at 1.99s vs 3.78s, with pass rates of 34.8% vs 47.8%.

Last updated at: 2026-10-01

Compared models

Rank
#279
Total Output Tokens
8,000
Response Time (avg)
3.78s
Total Cost
$0.056
Rank
#285
Total Output Tokens
14,686
Response Time (avg)
1.99s
Total Cost
$0.059
Recommended model Inkling Small (low)

Its score stays close to the best score here (5.2 vs 5.3), while responding about 1.9x faster than GPT-5.6 Luna.

Detailed comparison

Metric GPT-5.6 Luna GPT-5.6 Luna none Release: 2026-07-09 Inkling Small Inkling Small low Release: 2026-08-01 Free Available
Score 5.3 5.2
Rank #279 #285
Reliability 10.0 10.0
Consistency 8.8 8.7
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 34.8% 47.8%
Flaky tests 3 4
Total Runs 69 69
Cost per result 2.814 0.649
Total Cost $0.056 $0.059
Input Price $0.200 / 1M $0.450 / 1M
Output Price $1.200 / 1M $1.200 / 1M
Total Input Tokens 230,744 81,447
Output Tokens 8,000 2,715
Reasoning Tokens 0 11,971
Response Time (avg) 3.78s 1.99s
Response Time (max) 53.77s 5.82s
Response Time (total) 86.83s 45.67s
Parameters ~400B total (~17B active) 276B total (12B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#279 GPT-5.6 Luna

none
Cost
$0.016
Time
15.8s
Tokens
2,685 tok

#285 Thinking Machines: Inkling Small

low
Cost
$0.001
Time
5.9s
Tokens
759 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-5.6 Luna 3.8 7.2 22.2% 1 980ms 7,302 459 0
Inkling Small 4.6 5.0 33.3% 2 3.70s 7,374 375 4,332

Quick Compare

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