NOUMENOpen app
NOUMEN

doubao · Efficient

ByteDance Seed 2.0 Lite

Added Mar 10, 2026

Compare models

Choose up to 3 models to compare.1 of 3 chosen

Loading models…

Use in the app

ByteDance Seed 2.0 Lite is a balanced long-context model for high-frequency enterprise workloads, tuned for unstructured information processing, text creation, search and recommendation, and stable structured outputs. Supports a 262k context window.

  • Vision
  • Structured output
  • Video input
Input
Text, Images, Video
Output
Text
Discovery tier
Efficient

Pricing

USD per 1M tokens
Input
$0.25
Output
$2.00

Reference prices as published by the model provider. API example

Specifications

Context window
262.1K
Max output
131.1K
Average output (7 days)
132 tokens
Longer than 13% of 468 models

Side by side

ByteDance Seed 2.0 Lite compared

Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.

Compare models

Choose up to 3 models to compare.1 of 3 chosen

Loading models…

ByteDance Seed 2.0 LitedoubaoThis modelGPT 5.1 Codex MiniOpenAIRemove
ProviderdoubaoOpenAI
Discovery tierEfficientEfficient
AddedMar 10, 2026Nov 13, 2025
Limits
Context window262.14K400KBest
Max output131.07KBest128K
Average output132 tokens136 tokens
Pricing, USD per 1M tokens
Input$0.25$0.25
Output$2.00$2.00
Cache read—$0.025
Benchmark indexes
Intelligence Index—20.4
Math Index—91.7
Capabilities
ReasoningNoYes
VisionYesYes
Structured outputYesNo
Video inputYesNo
Reasoning effort——

Public evaluations

Benchmarks

Independent evaluation results, with how each score ranks among the models in the Noumen catalog.

  • ByteDance Seed 2.0 Lite
  • GPT 5.1 Codex Mini

Intelligence Index

  • ByteDance Seed 2.0 Lite—
  • GPT 5.1 Codex Mini20.4
3.8Catalog models by score55.1

Indexes

  • Math Index

    Composite of the math evaluations

    • ByteDance Seed 2.0 Lite: —
    • GPT 5.1 Codex Mini: 91.7

Document reasoning

  • AA-LCRv1.1

    Reasoning across long documents

    • ByteDance Seed 2.0 Lite: —
    • GPT 5.1 Codex Mini: 66.7%

Reasoning and knowledge

  • Humanity’s Last Exam

    Expert-level questions across academic fields

    • ByteDance Seed 2.0 Lite: —
    • GPT 5.1 Codex Mini: 18.5%

  • GPQA Diamond

    Graduate-level science questions

    • ByteDance Seed 2.0 Lite: —
    • GPT 5.1 Codex Mini: 81.3%

  • MMLU-Pro

    Multi-subject knowledge and reasoning

    • ByteDance Seed 2.0 Lite: —
    • GPT 5.1 Codex Mini: 82.0%

  • IFBench

    Following precise output instructions

    • ByteDance Seed 2.0 Lite: —
    • GPT 5.1 Codex Mini: 67.9%

Coding

  • LiveCodeBench

    Recent competitive programming problems

    • ByteDance Seed 2.0 Lite: —
    • GPT 5.1 Codex Mini: 83.6%

Math

  • AIME 2025

    Competition mathematics, 2025 problems

    • ByteDance Seed 2.0 Lite: —
    • GPT 5.1 Codex Mini: 91.7%

Legacy evaluations

  • Terminal-Bench Hard

    Earlier terminal task suite

    • ByteDance Seed 2.0 Lite: —
    • GPT 5.1 Codex Mini: 33.3%

  • τ²-Bench Telecom

    Tool use in a customer-support simulation

    • ByteDance Seed 2.0 Lite: —
    • GPT 5.1 Codex Mini: 62.9%

  • AA-LCR (unversioned)

    Long-context reasoning, earlier grading

    • ByteDance Seed 2.0 Lite: —
    • GPT 5.1 Codex Mini: 66.7%

Scores from Artificial Analysis, updated Oct 26, 2026. Artificial Analysis

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart
curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance-seed/seed-2.0-lite",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'
import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="bytedance-seed/seed-2.0-lite",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

doubao

Other doubao models, starting with the same family.