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

Gemini 3.8 Flash (medium) leads on average score with 9.1 vs 8.9. Gemini 3.8 Flash (medium) has the lower benchmark cost at $0.653 vs $1.797. Gemini 3.8 Flash (medium) is faster at 14.50s vs 173.96s, with pass rates of 78.8% vs 92.4%.

Last updated at: 2026-09-02

Rank
#29
Total Output Tokens
697,731
Response Time (avg)
173.96s
Total Cost
$1.797
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 2.8x less than Seed 2.1 Turbo (high).

Detailed comparison

Metric Seed 2.1 Turbo Seed 2.1 Turbo high Release: 2026-08-12 Gemini 3.8 Flash Gemini 3.8 Flash medium Release: 2026-09-02
Score 8.9 9.1
Rank #29 #17
Reliability 10.0 10.0
Consistency 8.9 9.3
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 78.8% 92.4%
Flaky tests 3 2
Total Runs 66 66
Cost per result 11.230 3.436
Total Cost $1.797 $0.653
Input Price $0.500 / 1M $0.750 / 1M
Output Price $2.500 / 1M $3.750 / 1M
Total Input Tokens 104,695 95,793
Output Tokens 6,645 7,066
Reasoning Tokens 691,086 147,842
Response Time (avg) 173.96s 14.50s
Response Time (max) 584.71s 108.60s
Response Time (total) 3827.19s 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.

#29 Seed 2.1 Turbo

high
Cost
$0.058
Time
355.4s
Tokens
23,053 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% 0 336.02s 8,220 370 194,578
Gemini 3.8 Flash 8.0 9.9 66.7% 0 11.69s 8,118 454 19,433

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