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#67

Seed 2.1 Turbo

Bytedance Seed Release: 2026-08-12 Tested on: 2026-08-14 04:30 bytedance-seed/seed-2-1-turbo::medium
~200B total (~20B active)MoEClosedEstimated
(high) (medium) (low) (none)

Summary

Seed 2.1 Turbo scores 8.4 on AI BENCHY and ranks #67. It has 10.0 reliability, a 78.8% pass rate, $1.951 total cost, and 193.59s average response time.

What makes Seed 2.1 Turbo unique: It stands out most in Puzzle Solving, where it ranks #4, while Domain specific is its weakest area at #17. It uses unusually many reasoning tokens, which can help explain its slower or more expensive runs.

Model facts

Researched on 2026-08-12

Estimated
Parameters
~200B total (~20B active)
Architecture
MoE
Availability
Closed
License
-

Best estimate from public evidence; the vendor did not disclose every value. The exact API checkpoint is closed and its architecture and parameter counts are not disclosed; estimate follows the Seed2 production tier.

Parameter source Availability source

Score

8.4

Consistency

8.2

Reliability

10.0

Total Cost (Current Price)

$1.951

Total Output Tokens

759,191

Total Input Tokens

104,433

Input Price

$0.500 / 1M

Output Price

$2.500 / 1M

Tests Correct

Wrong Tests: 7

Attempt pass rate: 78.8%

Flaky tests

5

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

193.59s

Response Time (max): 885.33s

Response Time (total): 4258.98s

Wrong answer: 5 Did not follow instructions: 1 No answer: 1

Hamster playing table tennis

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

#67 Seed 2.1 Turbo

medium
Cost
$0.099
Time
583.9s
Tokens
39,514 tok

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-08-14 04:30 Re-test 8.4 10.0 $1.951 Current run
2026-08-12 22:48 Initial run 8.4 9.9 $1.969 Compare

This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price
2026-08-14 12:51 $0.500 / 1M $2.500 / 1M

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

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Category Breakdown

Category Score Consistency Tests Correct
Anti-AI Tricks 8.2 7.9
Coding 8.2 7.2
Combined 10.0 10.0
Data parsing and extraction 10.0 10.0
Domain specific 2.9 4.4
General Intelligence 6.1 3.1
Instructions following 9.8 10.0
Puzzle Solving 9.9 10.0
Tool Calling 10.0 10.0
Trivia 3.0 10.0

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