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

AI BENCHY Compare

Google: Gemini 3.5 Flash vs OpenAI: GPT-5.6 Luna

Summary

Gemini 3.5 Flash (high) vs GPT-5.6 Luna (high) benchmark comparison: Gemini 3.5 Flash (high) leads on average score with 9.8 vs 7.7. GPT-5.6 Luna (high) has the lower benchmark cost at $0.924 vs $1.115. Gemini 3.5 Flash (high) is faster at 8.84s vs 18.39s, with pass rates of 96.8% vs 71.4%.

Recommended model: Gemini 3.5 Flash (high) - It has the best score here (9.8), while responding about 2.1x faster than GPT-5.6 Luna (high).

Last updated at: 2026-07-09

Metric Gemini 3.5 Flash Gemini 3.5 Flash high Release: 2026-05-19 GPT-5.6 Luna GPT-5.6 Luna high Release: 2026-07-09
Score 9.8 7.7
Rank #1 #50
Reliability 10.0 10.0
Consistency 9.6 8.8
Tests Correct
Attempt pass rate 96.8% 71.4%
Flaky tests 1 3
Total Runs 63 63
Cost per result 5.575 6.594
Total Cost $1.115 $0.924
Input Price $1.500 / 1M $1.000 / 1M
Output Price $9.000 / 1M $6.000 / 1M
Total Input Tokens 37,594 35,699
Output Tokens 1,975 2,079
Reasoning Tokens 115,638 145,816
Response Time (avg) 8.84s 18.39s
Response Time (max) 34.82s 111.09s
Response Time (total) 185.57s 386.24s

Generation showcase

Hamster playing table tennis

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

#1 Gemini 3.5 Flash

high
Cost
$0.208
Time
118.2s
Tokens
23,158 tok

#50 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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.57s 492 174 4,997
GPT-5.6 Luna 8.3 10.0 75.0% 0 2.99s 606 162 1,265
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 22.96s 8,118 456 47,129
GPT-5.6 Luna 5.5 4.7 55.6% 2 15.63s 7,302 510 17,746
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 22.37s 12,873 351 16,323
GPT-5.6 Luna 10.0 10.0 100.0% 0 13.29s 12,500 357 2,911
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 6.43s 7,548 279 8,466
GPT-5.6 Luna 10.0 10.0 100.0% 0 2.18s 7,140 234 470
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 7.6 7.2 77.8% 1 14.09s 633 12 24,721
GPT-5.6 Luna 7.7 10.0 66.7% 0 78.96s 723 69 96,395
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.63s 486 115 1,650
GPT-5.6 Luna 5.0 10.0 0.0% 0 3.65s 477 117 563
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.35s 615 70 3,799
GPT-5.6 Luna 9.9 10.0 100.0% 0 1.79s 660 97 481
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.23s 558 241 4,940
GPT-5.6 Luna 7.6 7.2 77.8% 1 14.55s 642 242 18,281
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 9.8 10.0 100.0% 0 4.96s 6,115 265 1,608
GPT-5.6 Luna 10.0 10.0 100.0% 0 4.98s 5,454 260 324
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.94s 156 12 2,005
GPT-5.6 Luna 3.0 10.0 0.0% 0 17.00s 195 31 7,380

Quick Compare

Switch Comparison Pair