Seed 2.1 Turbo vs Seed 2.0 Pro

Seed 2.1 Turbo and Seed 2.0 Pro side by side: specs, capabilities, parameters, and live pricing from the EmpirioLabs catalog.

ByteDance Text Generation

Seed 2.1 Turbo vs Seed 2.0 Pro at a glance

Seed 2.1 Turbo and Seed 2.0 Pro are both ByteDance models in the Text Generation category, available through the EmpirioLabs API.

Key differences

  • Seed 2.1 Turbo is the newer release (Jul 13, 2026); Seed 2.0 Pro was released on Feb 14, 2026.
  • Both models have a context window of 229.1K tokens.
  • Seed 2.0 Pro returns up to 128,000 output tokens per response, Seed 2.1 Turbo up to 65,536.
  • Input types only Seed 2.0 Pro accepts: Document.
  • Capabilities listed only for Seed 2.1 Turbo: agentic coding.

Seed 2.1 Turbo vs Seed 2.0 Pro: specs

SpecSeed 2.1 TurboSeed 2.0 Pro
Model IDseed-2-1-turboseed-2-0-pro
AuthorByteDanceByteDance
ReleasedJul 13, 2026Feb 14, 2026
Context window229.1K tokens229.1K tokens
Max output65,536 tokens128,000 tokens
Input
Text Image Video
Text Image Video Document
Output
Text
Text
Structured outputJSON SchemaJSON Schema
Batch API-Available
RegionMalaysiaMalaysia
Endpoints
POST /v1/chat/completions POST /v1/responses POST /v1/messages POST /v1beta/models/seed-2-1-turbo:generateContent
POST /v1/chat/completions POST /v1/responses POST /v1/messages POST /v1beta/models/seed-2-0-pro:generateContent
Capabilities
reasoning vision agentic coding function calling
vision reasoning function calling

Seed 2.1 Turbo vs Seed 2.0 Pro: API pricing

Live rates from the EmpirioLabs catalog for both models. Each rate card always matches what the API charges.

Seed 2.1 Turbo vs Seed 2.0 Pro: API parameters

Request parameters each model lists on EmpirioLabs, with the allowed values or range where one applies. A dash marks a parameter the model does not list.

ParameterSeed 2.1 TurboSeed 2.0 Pro
max_tokens1 to 655361 to 128000
frequency_penalty-2 to 2 Default: 0-2 to 2 Default: 0
presence_penalty-2 to 2 Default: 0-2 to 2 Default: 0
stopstringstring
enable_thinkingboolean Default: trueboolean Default: true
reasoning_effortlow, medium, high Default: highlow, medium, high Default: medium
enable_web_searchboolean Default: falseboolean Default: false
max_tool_calls1 to 10 Default: 31 to 10 Default: 3
image_detaillow, high, xhigh Default: highlow, high, xhigh Default: high
video_fps0.2 to 50.2 to 5
response_formatenumenum

Seed 2.1 Turbo vs Seed 2.0 Pro: limits and notes

Seed 2.1 Turbo

Per-token pricing is flat across the full context window, with no higher rate above 128K. Reasoning is on by default; set enable_thinking to false to answer directly without it.

Seed 2.0 Pro

Pricing is 2x when input tokens >=128K. Temperature and top_p are server-fixed (temp=1, top_p=0.95) regardless of client value.

How to call Seed 2.1 Turbo and Seed 2.0 Pro

Seed 2.1 Turbo serves the OpenAI-compatible Chat Completions API. Point any OpenAI SDK at https://api.empiriolabs.ai/v1 with your EmpirioLabs API key and use the model id seed-2-1-turbo. Both models are called through the same endpoint. Set model to seed-2-1-turbo or seed-2-0-pro. Get an API key from the EmpirioLabs dashboard.

cURL
curl https://api.empiriolabs.ai/v1/chat/completions \
  -H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seed-2-1-turbo",
    "messages": [
      {"role": "user", "content": "Write a haiku about the ocean."}
    ]
  }'

Seed 2.1 Turbo vs Seed 2.0 Pro: common questions

What is the difference between Seed 2.1 Turbo and Seed 2.0 Pro?

Seed 2.1 Turbo is the newer release (Jul 13, 2026); Seed 2.0 Pro was released on Feb 14, 2026. Both models have a context window of 229.1K tokens. Seed 2.0 Pro returns up to 128,000 output tokens per response, Seed 2.1 Turbo up to 65,536. The specs, rate cards, and parameters on this page come from the live EmpirioLabs catalog.

Which is newer, Seed 2.1 Turbo or Seed 2.0 Pro?

Seed 2.1 Turbo is the newer release (Jul 13, 2026); Seed 2.0 Pro was released on Feb 14, 2026.

Which has the lower rate, Seed 2.1 Turbo or Seed 2.0 Pro?

The two models are priced on different units or tiers, so compare the live rate cards on this page. They always match what the API charges.

Can I switch between Seed 2.1 Turbo and Seed 2.0 Pro without rebuilding my integration?

Yes. Both models use POST /v1/chat/completions with the same EmpirioLabs API key, so most integrations switch by changing the model value. Check the parameters table on this page first if you rely on a model-specific parameter.

Can I try Seed 2.1 Turbo and Seed 2.0 Pro in the browser before integrating?

Yes. Open each model in the EmpirioLabs playground and run the same prompt on both, with the parameters the API exposes.

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