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#177

Seed-2.0-Code

Bytedance Seed Release: 2026-08-12 Tested on: 2026-10-01 04:14 bytedance-seed/seed-2.0-code::high
~200B total (~20B active)MoEClosedEstimated
(high) (medium) (low) (none)

Summary

Seed-2.0-Code scores 7.5 on AI BENCHY and ranks #177. It has 9.0 reliability, a 65.2% pass rate, $1.448 total cost, and 124.87s average response time.

What makes Seed-2.0-Code unique: It stands out most in Data parsing and extraction, where it ranks #1, while General Intelligence is its weakest area at #14.

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. ByteDance documents the API-only Code model, but does not disclose its architecture or parameter counts; estimate follows the Seed2 production tier.

Parameter source Availability source

Score

7.5

Consistency

7.9

Reliability

9.0

Total Cost (Current Price)

$1.448

Total Output Tokens

432,850

Total Input Tokens

297,321

Input Price

$0.500 / 1M

Output Price

$3.000 / 1M

Cache Read Price

N/A

Cache Write Price

N/A

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Tests Correct

Wrong Tests: 11

Attempt pass rate: 65.2%

Flaky tests

5

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

Response Time (avg)

124.87s

Response Time (max): 675.30s

Response Time (total): 2871.96s

Wrong answer: 6 API error: 3 Did not follow instructions: 1 No answer: 1

Hamster playing table tennis

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

#177 Seed-2.0-Code

high
Cost
$0.037
Time
183.6s
Tokens
12,388 tok

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-10-01 04:14 Re-test 7.5 9.0 $1.448 Current run
2026-08-12 23:09 Initial run 6.9 6.0 $1.312 Compare

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

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

Seed-2.0-CodehighvsMistral Large 4highSeed-2.0-CodehighvsGPT-5.6 LunamediumSeed-2.0-CodehighvsSeed-2.0-MinimediumSeed-2.0-CodehighvsQwen3.6 FlashmediumSeed-2.0-CodehighvsGLM 5.1mediumSeed-2.0-CodehighvsDeepSeek V4 Flash 0731lowSeed-2.0-CodehighvsSpace Bunny AlphahighSeed-2.0-CodehighvsSeed-2.0-CodemediumSeed-2.0-CodehighvsQwen3.8 27BlowFree AvailableSeed-2.0-CodehighvsGLM 5.3 FlashXhigh

Category Breakdown

Category Score Consistency Tests Correct
Agentic 10.0 10.0
Anti-AI Tricks 8.3 10.0
Coding 6.2 6.5
Combined 7.3 5.8
Data parsing and extraction 10.0 10.0
Domain specific 3.5 4.4
General Intelligence 4.6 7.8
Instructions following 9.8 10.0
Puzzle Solving 7.8 9.3
Tool Calling 4.7 1.6
Trivia 3.0 10.0

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