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Gemini 3.1 Pro Preview (medium) vs GPT-5.6 Terra (high)

Gemini 3.1 Pro Preview (medium) leads on average score with 8.4 vs 8.3. GPT-5.6 Terra (high) has the lower benchmark cost at $1.116 vs $1.585. GPT-5.6 Terra (high) is faster at 13.62s vs 22.71s, with pass rates of 89.9% vs 69.6%.

Last updated at: 2026-10-01

Compared models

Rank
#71
Total Output Tokens
102,691
Response Time (avg)
22.71s
Total Cost
$1.585
Rank
#76
Total Output Tokens
60,065
Response Time (avg)
13.62s
Total Cost
$1.116
Recommended model GPT-5.6 Terra (high)

Its score stays close to the best score here (8.3 vs 8.4), while responding about 1.7x faster than Gemini 3.1 Pro Preview (medium).

Detailed comparison

Metric Gemini 3.1 Pro Preview Gemini 3.1 Pro Preview medium Release: 2026-02-19 GPT-5.6 Terra GPT-5.6 Terra high Release: 2026-07-09
Score 8.4 8.3
Rank #71 #76
Reliability 9.8 10.0
Consistency 9.6 9.4
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 89.9% 69.6%
Flaky tests 1 2
Total Runs 69 69
Cost per result 7.924 8.674
Total Cost $1.585 $1.116
Input Price $2.000 / 1M $2.000 / 1M
Output Price $12.000 / 1M $12.000 / 1M
Total Input Tokens 176,208 197,239
Output Tokens 6,093 6,083
Reasoning Tokens 96,598 53,982
Response Time (avg) 22.71s 13.62s
Response Time (max) 88.68s 91.49s
Response Time (total) 386.11s 313.21s
Parameters ~1.2T 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.

#71 Gemini 3.1 Pro Preview

medium
Cost
$0.115
Time
87.2s
Tokens
9,629 tok

#76 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 3.1 Pro Preview 7.9 9.9 66.7% 0 40.17s 8,124 435 41,247
GPT-5.6 Terra 7.6 7.2 77.8% 1 9.14s 7,302 370 6,087

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