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Seed 2.0 Mini

ByteDanceReleased Feb 17, 2026bytedance/seed-2.0-mini
CostCompare

Seed 2.0 Mini is built for low-latency, high-concurrency, cost-sensitive use cases, with flexible deployment, four-tier thinking, and multimodal input.

Context
256K
Max output
131K
Input /1M
$0.10
Output /1M
$0.40
Blended /1M
$0.17
AcceptsTextImageVideoProducesTextTokenizer Other

Providers

FastRouter routes your requests to this provider. You can also bring your own key.

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DeepInfra
deepinfra
Input /1M$0.10
Output /1M$0.40
Context256K
Max output131K
Latency—
Throughput—
Supports tool callingSupports structured (JSON) outputSupports reasoning

Supported parameters

Request parameters you can send with this model.

Core (Sampling & basic generation)

max_tokens
Maximum tokens to generate.
min_p
Minimum probability threshold for sampling.
seed
Seed for deterministic sampling.
stop
Sequences where generation stops.
temperature
Controls randomness of output.
top_k
Limits sampling to top K tokens.
top_p
Nucleus sampling threshold.

Penalties (Token Penalties)

frequency_penalty
Penalizes frequent tokens.
presence_penalty
Penalizes tokens already present.
repetition_penalty
Penalizes repeated tokens.

Reasoning (Reasoning Controls)

include_reasoning
Include reasoning trace in the response.
reasoning
Provider-specific reasoning configuration.

Tool Use (Function Calls & Tools)

tool_choice
How the model should use tools.
tools
Tool/function definitions available to the model.

Output & Format (Response Formatting)

response_format
Structured output format configuration.

Performance

Median throughput and time to first token per provider over the last week.

Throughput

Latency

Make your first API call

OpenAI-compatible. Point your SDK at FastRouter, or call the API directly.

Full API docs
Replace <FASTROUTER_API_KEY> with your key · Get your key →Install
OpenAI SDKHTTP
from openai import OpenAI
client = OpenAI(
base_url="https://api.fastrouter.ai/api/v1", # FastRouter base URL
api_key= "<FASTROUTER_API_KEY>", # Replace with your FastRouter API key
)
completion = client.chat.completions.create(
model="bytedance/seed-2.0-mini", # Replace with your model ID
messages=[
{ "role": "user", "content": "What is the meaning of life?" }
]
)
print(completion.choices[0].message.content)

Frequently asked questions

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Model scores sourced from ArtificialAnalysis