Doubao SEED 2.0 Lite API
Affordable mid-tier model. Good balance of cost and capability for Chinese applications.
💰 Save up to 70% vs official ByteDance pricingDoubao SEED 2.0 Lite — cheaper than the official ByteDance API
Access Doubao SEED 2.0 Lite through AI API Hub and pay less per token. Same OpenAI-compatible endpoint, lower cost.
Technical Specifications
| Provider | ByteDance |
| Model Family | Doubao SEED 2.0 Lite |
| Release Date | 2026-05 |
| Context Window | 128K |
| Max Output Tokens | 8,192 |
| Input Price | $0.08 / 1M tokens |
| Output Price | $0.50 / 1M tokens |
| Vision Support | No |
| Function Calling | No |
| JSON Mode | No |
| Streaming | Yes ✓ |
| Fine Tuning | Not Available |
| Status | Active ✓ |
Overview
Doubao SEED 2.0 Lite is ByteDance's current doubao model, released in 2026-05. Affordable mid-tier model. Good balance of cost and capability for Chinese applications.
For developers, the headline numbers are a 128K context window and up to 8,192 output tokens per response — enough headroom for ultra-low cost and chinese support without chunking your input. Priced at $0.08/1M input and $0.50/1M output, it sits in the budget tier — ideal for high-volume pipelines where token cost dominates.
On the capability side, Doubao SEED 2.0 Lite exposes 3 features: Chinese, Low Latency, Streaming. Note that fine-tuning isn't supported — you'll work with the base model. It's text-only, so route image or audio workloads elsewhere.
The practical appeal of routing Doubao SEED 2.0 Lite through AI API Hub is simplicity: one OpenAI-compatible endpoint, USDT & USDC payments, no credit card, and you're calling the API in under 30 seconds — just swap your base URL.
What Makes Doubao SEED 2.0 Lite Different
How Doubao SEED 2.0 Lite is used
Doubao SEED 2.0 Lite is used for general-purpose text tasks — chat, summarization, drafting, classification, and extraction. It handles the standard text-in/text-out case reliably. For specialized workloads (coding, reasoning, vision), a purpose-tuned sibling may perform better.
Pricing position within ByteDance
Doubao SEED 2.0 Lite sits in the middle of ByteDance's pricing at $0.08/1M input — 57% below the lineup average ($0.03 cheapest, $0.45 most expensive). 1 sibling cost less, 1 cost more. This mid-tier positioning makes it a sensible default when you're unsure which variant to pick.
Doubao SEED 2.0 Lite's role in the lineup
Within ByteDance's lineup, Doubao SEED 2.0 Lite is a mid-tier option — balanced between cost and capability. The doubao family has 3 active variants, and Doubao SEED 2.0 Lite occupies the lower end. This makes it a safe default for production workloads where you're not sure which tier to pick.
Real-world use cases
Real-world deployments: customer support chatbots, content drafting and summarization, classification pipelines, and extraction workflows. Doubao SEED 2.0 Lite handles the standard text-in/text-out case reliably — route specialized tasks (vision, coding, reasoning) to purpose-tuned siblings.
vs sibling models
What makes Doubao SEED 2.0 Lite different from sibling models: compared to Doubao SEED 2.0 Pro ($0.37/1M more expensive, same 128K context); Doubao SEED 2.0 Mini ($0.05/1M cheaper, same 128K context). Choose Doubao SEED 2.0 Lite when a balanced cost-to-capability ratio fits your workload.
API Examples
Python
from openai import OpenAI
client = OpenAI(
api_key="YOUR_API_KEY",
base_url="https://api.apiyihe.org/v1"
)
response = client.chat.completions.create(
model="doubao-seed-2.0-lite",
messages=[
{"role": "user", "content": "Hello"}
]
)
print(response.choices[0].message.content)JavaScript / Node.js
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.API_KEY,
baseURL: "https://api.apiyihe.org/v1"
});
const response = await client.chat.completions.create({
model: "doubao-seed-2.0-lite",
messages: [
{ role: "user", content: "Hello" }
]
});
console.log(response.choices[0].message.content);cURL
curl https://api.apiyihe.org/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model": "doubao-seed-2.0-lite",
"messages": [
{"role": "user", "content": "Hello"}
]
}'Supported Features
| Vision / Image Input | ❌ Not Available |
| Audio / Voice Input | ❌ Not Available |
| Function Calling | ❌ Not Available |
| JSON Mode | ❌ Not Available |
| Streaming | ✅ Supported |
| Fine-Tuning | ❌ Not Available |
| Multimodal | ❌ Not Available |
Benchmark Scores
| Benchmark | Score |
|---|---|
| MMLU | Not Publicly Available |
| GPQA | Not Publicly Available |
| SWE-Bench | Not Publicly Available |
| HumanEval | Not Publicly Available |
| GSM8K | Not Publicly Available |
| MATH | Not Publicly Available |
| MMMU | Not Publicly Available |
Pricing History
Doubao SEED 2.0 Lite was released in 2026-05 by ByteDance and is currently publicly available via AI API Hub.
Current Pricing: $0.08 per 1M input tokens · $0.50 per 1M output tokens. Pay-as-you-go with no minimum commitment.
Pricing Model: Token-based billing (pay per use). No subscription fees. No hidden costs.
💡 ByteDance occasionally updates pricing. AI API Hub reflects current pricing in real-time. All prices in USD. Pay with USDT or USDC — no currency conversion fees.
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Frequently Asked Questions
What is Doubao SEED 2.0 Lite?
Doubao SEED 2.0 Lite is ByteDance's current doubao model. Affordable mid-tier model. Good balance of cost and capability for Chinese applications. It offers a 128K context window and supports Chinese, Low Latency, Streaming. You can access it through AI API Hub using USDT or USDC — no credit card required.
How much does Doubao SEED 2.0 Lite cost?
Doubao SEED 2.0 Lite is priced at $0.08 per 1M input tokens and $0.50 per 1M output tokens, billed pay-as-you-go with no minimum. Through AI API Hub you can start with as little as $5 and scale from there.
Doubao SEED 2.0 Lite vs GPT-5.5?
They're built for different jobs. Doubao SEED 2.0 Lite costs $0.08/1M input with a 128K window; GPT-5.5 runs $5.00/1M input with 256K. Doubao SEED 2.0 Lite is the more cost-effective pick and still brings ultra-low cost. See the full side-by-side at /compare/doubao-seed-2.0-lite-vs-gpt-5.5/.
Doubao SEED 2.0 Lite context window?
Doubao SEED 2.0 Lite has a 128K context window, capable of processing up to 128,000 tokens in a single request. Maximum output tokens: 8,192.
Does Doubao SEED 2.0 Lite support function calling?
No, Doubao SEED 2.0 Lite does not natively support function calling. For function calling use cases, consider ByteDance's flagship models.
Is Doubao SEED 2.0 Lite multimodal?
No, Doubao SEED 2.0 Lite is a text-only model. For multimodal use cases, consider models with vision/audio capabilities.
Doubao SEED 2.0 Lite API rate limits?
Doubao SEED 2.0 Lite rate limits: 10K RPM. Higher tier plans offer increased throughput. For high-volume production use, consider ByteDance's faster variant models.
How to access Doubao SEED 2.0 Lite API?
Access Doubao SEED 2.0 Lite through AI API Hub: (1) Register at api.apiyihe.org/register?aff=8JZC, (2) Deposit USDT/USDC, (3) Get your API key instantly, (4) Use the OpenAI-compatible endpoint https://api.apiyihe.org/v1 with model name "doubao-seed-2.0-lite". Start building in under 30 seconds.