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Seed 2.1 Turbo (low) vs Gemini 3.5 Flash (medium)

Seed 2.1 Turbo (low) leads on average score with 9.1 vs 9.0. Gemini 3.5 Flash (medium) has the lower benchmark cost at $0.665 vs $1.546. Gemini 3.5 Flash (medium) is faster at 8.48s vs 163.90s, with pass rates of 80.3% vs 83.3%.

Last updated at: 2026-09-24

Compared models

Rank
#28
Total Output Tokens
597,236
Response Time (avg)
163.90s
Total Cost
$1.546
Rank
#32
Total Output Tokens
62,173
Response Time (avg)
8.48s
Total Cost
$0.665
Recommended model Gemini 3.5 Flash (medium)

Its score stays close to the best score here (9.0 vs 9.1), while costing about 2.3x less than Seed 2.1 Turbo (low).

Detailed comparison

Metric Seed 2.1 Turbo Seed 2.1 Turbo low Release: 2026-08-12 Gemini 3.5 Flash Gemini 3.5 Flash medium Release: 2026-05-19
Score 9.1 9.0
Rank #28 #32
Reliability 10.0 10.0
Consistency 9.2 9.7
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 80.3% 83.3%
Flaky tests 2 1
Total Runs 66 66
Cost per result 9.091 3.690
Total Cost $1.546 $0.665
Input Price $0.500 / 1M $1.500 / 1M
Output Price $2.500 / 1M $9.000 / 1M
Total Input Tokens 104,464 69,756
Output Tokens 6,844 2,166
Reasoning Tokens 590,392 60,007
Response Time (avg) 163.90s 8.48s
Response Time (max) 739.98s 76.68s
Response Time (total) 3605.87s 186.57s
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.

#28 Seed 2.1 Turbo

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

#32 Gemini 3.5 Flash

medium
Cost
$0.201
Time
112.9s
Tokens
22,371 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 3.5 Flash 7.9 7.5 77.8% 1 12.63s 8,118 461 24,939

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