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Gemini 3.5 Flash (high) vs GPT-6 Astra (xhigh)

GPT-6 Astra (xhigh) leads on average score with 9.9 vs 9.4. Gemini 3.5 Flash (high) has the lower benchmark cost at $2.011 vs $5.156. Gemini 3.5 Flash (high) is faster at 15.46s vs 28.44s, with pass rates of 89.4% vs 97.0%.

Last updated at: 2026-09-04

Rank
#11
Total Output Tokens
205,482
Response Time (avg)
15.46s
Total Cost
$2.011
Rank
#5
Total Output Tokens
87,183
Response Time (avg)
28.44s
Total Cost
$5.156
Recommended model Gemini 3.5 Flash (high)

Its score stays close to the best score here (9.4 vs 9.9), while costing about 2.6x less than GPT-6 Astra (xhigh).

Detailed comparison

Metric Gemini 3.5 Flash Gemini 3.5 Flash high Release: 2026-05-19 GPT-6 Astra GPT-6 Astra xhigh Release: 2026-09-04
Score 9.4 9.9
Rank #11 #5
Reliability 10.0 9.9
Consistency 9.3 9.6
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 89.4% 97.0%
Flaky tests 2 1
Total Runs 66 66
Cost per result 10.580 24.552
Total Cost $2.011 $5.156
Input Price $1.500 / 1M $10.000 / 1M
Output Price $9.000 / 1M $50.000 / 1M
Total Input Tokens 107,146 79,662
Output Tokens 8,777 5,055
Reasoning Tokens 196,705 82,128
Response Time (avg) 15.46s 28.44s
Response Time (max) 145.92s 381.11s
Response Time (total) 340.20s 625.68s
Parameters ~500B total (~20B active) ~2T total (~150B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#11 Gemini 3.5 Flash

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

#5 GPT-6 Astra

xhigh
Cost
$0.694
Time
257.5s
Tokens
13,964 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 10.0 10.0 100.0% 0 22.96s 8,118 456 47,129
GPT-6 Astra 10.0 10.0 100.0% 0 8.27s 7,302 396 4,031

Quick Compare

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