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Seed 2.1 Turbo (low) vs Gemini 3.8 Flash (medium)

The average score is effectively tied at 9.1 vs 9.1. Gemini 3.8 Flash (medium) has the lower benchmark cost at $0.653 vs $1.546. Gemini 3.8 Flash (medium) is faster at 14.50s vs 163.90s, with pass rates of 80.3% vs 92.4%.

Last updated at: 2026-09-02

Rank
#18
Total Output Tokens
597,236
Response Time (avg)
163.90s
Total Cost
$1.546
Rank
#17
Total Output Tokens
154,908
Response Time (avg)
14.50s
Total Cost
$0.653
Recommended model Gemini 3.8 Flash (medium)

It has the best score here (9.1), while costing about 2.4x less than Seed 2.1 Turbo (low).

Detailed comparison

Metric Seed 2.1 Turbo Seed 2.1 Turbo low Release: 2026-08-12 Gemini 3.8 Flash Gemini 3.8 Flash medium Release: 2026-09-02
Score 9.1 9.1
Rank #18 #17
Reliability 10.0 10.0
Consistency 9.2 9.3
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 80.3% 92.4%
Flaky tests 2 2
Total Runs 66 66
Cost per result 9.091 3.436
Total Cost $1.546 $0.653
Input Price $0.500 / 1M $0.750 / 1M
Output Price $2.500 / 1M $3.750 / 1M
Total Input Tokens 104,464 95,793
Output Tokens 6,844 7,066
Reasoning Tokens 590,392 147,842
Response Time (avg) 163.90s 14.50s
Response Time (max) 739.98s 108.60s
Response Time (total) 3605.87s 318.92s
Parameters ~200B total (~20B active) ~500B total (~20B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#18 Seed 2.1 Turbo

low
Cost
$0.049
Time
298.8s
Tokens
19,730 tok

#17 Gemini 3.8 Flash

medium
Cost
$0.037
Time
54.6s
Tokens
9,712 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
Seed 2.1 Turbo 10.0 10.0 100.0% 0 360.85s 8,220 385 207,368
Gemini 3.8 Flash 8.0 9.9 66.7% 0 11.69s 8,118 454 19,433

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