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Gemini 3 Flash Preview (medium) vs GPT-5.6 Terra (low)

Gemini 3 Flash Preview (medium) leads on average score with 9.5 vs 7.5. GPT-5.6 Terra (low) has the lower benchmark cost at $0.420 vs $0.763. GPT-5.6 Terra (low) is faster at 5.45s vs 19.86s, with pass rates of 93.9% vs 74.2%.

Last updated at: 2026-08-20

Rank
#5
Total Output Tokens
239,608
Response Time (avg)
19.86s
Total Cost
$0.763
Rank
#83
Total Output Tokens
21,586
Response Time (avg)
5.45s
Total Cost
$0.420
Recommended model Gemini 3 Flash Preview (medium)

It has the strongest score in this comparison (9.5) and the best overall balance of cost and response time across all 2 models.

Detailed comparison

Metric Gemini 3 Flash Preview Gemini 3 Flash Preview medium Release: 2025-12-17 GPT-5.6 Terra GPT-5.6 Terra low Release: 2026-07-09
Score 9.5 7.5
Rank #5 #83
Reliability 10.0 10.0
Consistency 9.7 7.9
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 93.9% 74.2%
Flaky tests 1 6
Total Runs 66 66
Cost per result 3.814 3.954
Total Cost $0.763 $0.420
Input Price $0.500 / 1M $2.000 / 1M
Output Price $3.000 / 1M $12.000 / 1M
Total Input Tokens 87,870 80,304
Output Tokens 5,486 4,714
Reasoning Tokens 234,122 16,872
Response Time (avg) 19.86s 5.45s
Response Time (max) 117.26s 19.85s
Response Time (total) 436.88s 119.83s
Parameters ~500B total (~20B active) ~1T total (~60B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#5 Gemini 3 Flash Preview

medium
Cost
$0.010
Time
18.4s
Tokens
3,351 tok

#83 GPT-5.6 Terra

low
Cost
$0.034
Time
16.8s
Tokens
2,348 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 Flash Preview 8.6 7.6 88.9% 1 84.40s 8,122 462 161,084
GPT-5.6 Terra 6.6 4.6 77.8% 2 9.56s 7,302 429 6,821

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