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ByteDance Seed · Released Feb 14, 2026

Seed 2.0 Code

ByteDance Seed coding model for multimodal software engineering and long-running agents.

  • Proprietary
  • Reasoning
  • Tool calling
  • Vision
  • Video input
Capability
—No ECI score yet
Input
$0.475per 1M tokens
Output
$2.37per 1M tokens
Context
262K131K max output
Pricing

What it costs

Input
$0.475per million tokens
Output
$2.37per million tokens
Cached input
$0.095per million tokens
Over 32K tokens
$0.712 / $3.56input / output per million
Blended (3:1)
$0.95pricier than 54% of priced models

Typical monthly bills

Monthly usageEstimated cost
Side project2M input + 0.5M output tokens$2.14
Team assistant25M input + 5M output tokens$23.75
Production app250M input + 50M output tokens$237.49

Official Volcengine Ark API price, as listed on models.dev.

Capability

Independent benchmarks

Epoch AI has not published a Capabilities Index score for Seed 2.0 Code yet.

Specifications

The details

Lab
ByteDance Seed
Released
Feb 14, 2026
Context window
262,144 tokens
Max output
131,072 tokens
Inputs
Text, Images, Video
Output
Text
Reasoning
Adjustable effort minimal · low · medium · high · xhigh · max
Tool calling
Yes
Structured output
Yes
Weights
Proprietary
API model ID
doubao-seed-2-0-code-preview-260215on Volcengine Ark
Availability
10 API providerslisted on models.dev

Volcengine Ark model documentation

Same lab

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Questions

About Seed 2.0 Code

How much does Seed 2.0 Code cost?

Seed 2.0 Code costs $0.475 input / $2.37 output per million tokens (official Volcengine Ark API price). Cached input is $0.095 per million tokens. Requests over 32K tokens are billed at $0.712 input / $3.56 output. At a 3:1 input-to-output mix that is $0.95 per million tokens, more expensive than 54% of the 360 priced models we track.

What is the context window of Seed 2.0 Code?

Seed 2.0 Code accepts up to 262,144 tokens per request and can write up to 131,072 tokens in one response.

How good is Seed 2.0 Code?

Epoch AI has not published a Capabilities Index score for Seed 2.0 Code yet.

Is Seed 2.0 Code open source?

No. Seed 2.0 Code is proprietary; you use it through Volcengine Ark’s API or partner platforms.

What inputs does Seed 2.0 Code support?

Seed 2.0 Code accepts text, images and video and replies in text. It is a reasoning model with minimal, low, medium, high, xhigh and max effort settings, supports tool calling and can return structured JSON output.

When was Seed 2.0 Code released?

ByteDance Seed released Seed 2.0 Code on Feb 14, 2026.

What are the best alternatives to Seed 2.0 Code?

The closest current models from other labs on capability, price and release date are MiniMax-M2.5-highspeed (MiniMax, $0.60 / $2.40), DeepSeek OCR 2 (DeepSeek, $0.89 / $1.47), Qwen3.5 27B (Alibaba (Qwen), $0.30 / $2.40) and Nova 2 Lite (Amazon, $0.33 / $2.75).