Navigate
AD
Track all your projects in one dashboard. Get 📊stats, 🔥heatmaps and 👀recordings in one self-hosted dashboard.
uxwizz.com

Gemini 3.5 Flash (medium) vs GPT-5.6 Luna (high)

GPT-5.6 Luna (high) leads on average score with 8.0 vs 7.9. GPT-5.6 Luna (high) has the lower benchmark cost at $0.118 vs $1.316. Gemini 3.5 Flash (medium) is faster at 11.78s vs 18.39s, with pass rates of 81.2% vs 71.0%.

Last updated at: 2026-10-02

Compared models

Rank
#101
Total Output Tokens
96,655
Response Time (avg)
11.78s
Total Cost
$1.316
Rank
#91
Total Output Tokens
139,395
Response Time (avg)
18.39s
Total Cost
$0.118
Recommended model GPT-5.6 Luna (high)

It has the best score here (8.0), while costing about 11.2x less than Gemini 3.5 Flash (medium).

Detailed comparison

Metric Gemini 3.5 Flash Gemini 3.5 Flash medium Release: 2026-05-19 GPT-5.6 Luna GPT-5.6 Luna high Release: 2026-07-09
Score 7.9 8.0
Rank #101 #91
Reliability 10.0 10.0
Consistency 9.3 8.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 81.2% 71.0%
Flaky tests 2 4
Total Runs 69 69
Cost per result 7.306 5.882
Total Cost $1.316 $0.118
Input Price $1.500 / 1M $0.200 / 1M
Output Price $9.000 / 1M $1.200 / 1M
Cache Read Price $0.150 / 1M $0.020 / 1M
Cache Write Price $0.084 / 1M $0.250 / 1M
Total Input Tokens 296,760 197,896
Output Tokens 4,371 6,211
Reasoning Tokens 92,284 133,184
Response Time (avg) 11.78s 18.39s
Response Time (max) 84.47s 111.09s
Response Time (total) 271.03s 422.93s
Parameters ~500B total (~20B 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.

#101 Gemini 3.5 Flash

medium
Cost
$0.201
Time
112.9s
Tokens
22,371 tok

#91 GPT-5.6 Luna

high
Cost
$0.033
Time
34.2s
Tokens
5,484 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
Gemini 3.5 Flash 7.9 7.5 77.8% 1 12.63s 8,118 461 24,939
GPT-5.6 Luna 5.5 4.7 55.6% 2 15.63s 7,302 510 17,746

Quick Compare

Switch Comparison Pair