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

Gemini 3 Flash Preview (medium) leads on average score with 9.5 vs 8.0. Gemini 3 Flash Preview (medium) has the lower benchmark cost at $0.763 vs $0.836. GPT-5.6 Terra (high) is faster at 11.22s vs 19.86s, with pass rates of 93.9% vs 68.2%.

Last updated at: 2026-08-20

Rank
#5
Total Output Tokens
239,608
Response Time (avg)
19.86s
Total Cost
$0.763
Rank
#57
Total Output Tokens
56,088
Response Time (avg)
11.22s
Total Cost
$0.836
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 high Release: 2026-07-09
Score 9.5 8.0
Rank #5 #57
Reliability 10.0 10.0
Consistency 9.7 9.3
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 93.9% 68.2%
Flaky tests 1 2
Total Runs 66 66
Cost per result 3.814 7.293
Total Cost $0.763 $0.836
Input Price $0.500 / 1M $2.000 / 1M
Output Price $3.000 / 1M $12.000 / 1M
Total Input Tokens 87,870 81,056
Output Tokens 5,486 5,055
Reasoning Tokens 234,122 51,033
Response Time (avg) 19.86s 11.22s
Response Time (max) 117.26s 91.49s
Response Time (total) 436.88s 246.77s
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

#57 GPT-5.6 Terra

high
Cost
$0.055
Time
30.2s
Tokens
3,748 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 7.6 7.2 77.8% 1 9.14s 7,302 370 6,087

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