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Gemini 3.8 Flash (medium) vs GPT-5.6 Terra (low)

The average score is effectively tied at 8.0 vs 7.9. GPT-5.6 Terra (low) has the lower benchmark cost at $0.645 vs $0.769. GPT-5.6 Terra (low) is faster at 7.58s vs 16.64s, with pass rates of 89.9% vs 75.4%.

Last updated at: 2026-10-01

Compared models

Rank
#94
Total Output Tokens
167,486
Response Time (avg)
16.64s
Total Cost
$0.769
Rank
#95
Total Output Tokens
24,213
Response Time (avg)
7.58s
Total Cost
$0.645
Recommended model GPT-5.6 Terra (low)

It has the best score here (7.9), while responding about 2.2x faster than Gemini 3.8 Flash (medium).

Detailed comparison

Metric Gemini 3.8 Flash Gemini 3.8 Flash medium Release: 2026-09-02 GPT-5.6 Terra GPT-5.6 Terra low Release: 2026-07-09
Score 8.0 7.9
Rank #94 #95
Reliability 9.9 10.0
Consistency 9.0 8.0
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 89.9% 75.4%
Flaky tests 3 6
Total Runs 69 69
Cost per result 4.046 5.277
Total Cost $0.769 $0.645
Input Price $0.750 / 1M $2.000 / 1M
Output Price $3.750 / 1M $12.000 / 1M
Total Input Tokens 187,331 176,890
Output Tokens 7,555 5,688
Reasoning Tokens 159,931 18,525
Response Time (avg) 16.64s 7.58s
Response Time (max) 108.60s 54.57s
Response Time (total) 382.64s 174.39s
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.

#94 Gemini 3.8 Flash

medium
Cost
$0.037
Time
54.6s
Tokens
9,712 tok

#95 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 3.8 Flash 8.0 9.9 66.7% 0 11.69s 8,118 454 19,433
GPT-5.6 Terra 6.6 4.6 77.8% 2 9.56s 7,302 429 6,821

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