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OpenKey

Seed-2.0-Lite

ByteDance SeedReleased Mar 10, 2026

Seed-2.0-Lite is a versatile, cost‑efficient enterprise workhorse that delivers strong multimodal and agent capabilities while offering noticeably lower latency, making it a practical default choice for most production workloads across...

Try in playground
Context window
262K tokens
Max output
131K tokens
Input
text, image, video
Output
text
Tokenizer
Other
Released
Mar 10, 2026
Reasoning
optional

Pricing

Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.

Per 1M tokensProvider+ 3% feeYou pay
Input$0.250$0.0075$0.258
Output$2.00$0.060$2.06

Supported parameters

  • frequency_penalty
  • include_reasoning
  • max_tokens
  • reasoning
  • response_format
  • stop
  • structured_outputs
  • temperature
  • tool_choice
  • tools
  • top_p

Call it

OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model bytedance-seed/seed-2.0-lite.

Code sample language
curl https://api.openkey.ai/v1/chat/completions \
  -H "Authorization: Bearer $OPENKEY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance-seed/seed-2.0-lite",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.openkey.ai/v1",
    api_key=os.environ["OPENKEY_API_KEY"],
)

completion = client.chat.completions.create(
    model="bytedance-seed/seed-2.0-lite",
    messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.openkey.ai/v1",
  apiKey: process.env.OPENKEY_API_KEY,
});

const completion = await client.chat.completions.create({
  model: "bytedance-seed/seed-2.0-lite",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Questions

How much does Seed-2.0-Lite cost via API?
Through OpenKey, Seed-2.0-Lite costs $0.258 per 1M input tokens and $2.06 per 1M output tokens. That is the provider price ($0.250 / $2.00) plus a flat 3% fee — nothing else.
What is Seed-2.0-Lite's context window?
Seed-2.0-Lite accepts up to 262K tokens of context and returns up to 131K tokens per request.
Is Seed-2.0-Lite OpenAI-compatible?
Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "bytedance-seed/seed-2.0-lite" using any OpenAI SDK — only the base URL and API key change.
What inputs does Seed-2.0-Lite support?
Seed-2.0-Lite accepts text, image, video input and produces text output.

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