BytedanceFreeOperational
Seed Rp
API model name: seed-rp
Seed Rp is Bytedance's chat model, served on the Api.Airforce unified API. It has a 524K-token context window. Capabilities include Tool calling. It is available on the free tier at no per-token cost. Knowledge cutoff: 2025-07. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.
Pricing
Specifications
- Provider
- Bytedance
- Type
- chat model
- Context window
- 524K tokens
- Max output
- 16K tokens
- Knowledge cutoff
- 2025-07
- Input
- text
- Output
- text
Capabilities
Tool callingStreaming
Benchmarks
Independent evaluations and measured speed from Artificial Analysis.
Intelligence Index
25.2/100
Coding Index
16.7/100
Math Index
84.7/100
MMLU-Pro82%
GPQA Diamond73%
Humanity's Last Exam9%
LiveCodeBench77%
AIME 202585%
Output speed34.4 tok/s
Time to first token1.58 s
Source: Benchmark data by Artificial Analysis (artificialanalysis.ai)
What is Seed Rp used for?
- Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.
- Agents & automation — function calling and tool use for multi-step workflows.
- Long-context tasks — process entire documents or codebases in a single prompt.
- Real-time experiences — stream tokens for responsive chat and apps.
Seed Rp vs. similar models
| Model | Intelligence | Context | Input / 1M | Output / 1M |
|---|---|---|---|---|
| Seed Rp | 25.2 | 524K | Free | Free |
| Doubao Seed 1 6 250615 | — | — | $0.33 | $3.42 |
| Doubao Seed 1 6 Thinking 250615 | — | — | $0.33 | $3.42 |
| Doubao Seed 1 6 Thinking 250715 | — | — | $0.33 | $3.42 |
Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.
Related models
Doubao Seed 1 6 250615Bytedance · $0.33 / 1MDoubao Seed 1 6 Thinking 250615Bytedance · $0.33 / 1MDoubao Seed 1 6 Thinking 250715Bytedance · $0.33 / 1MDoubao Seed 1 8 251228Bytedance · $0.36 / 1MDoubao Seed 2 0 Code Preview 260215Bytedance · $1.38 / 1MDoubao Seed 2 0 Lite 260215Bytedance · $0.27 / 1MDoubao Seed 2 0 Mini 260215Bytedance · $0.09 / 1MDoubao Seed 2 0 Pro 260215Bytedance · $1.38 / 1MNemotron 3 SuperNVIDIA · FreeO1OpenAI · $2.25 / 1MO3OpenAI · $0.30 / 1MO3 Deep ResearchOpenAI · $34.23 / 1M
Seed Rp — frequently asked questions
- How much does Seed Rp cost?
- Seed Rp is available on the free tier at no token cost — create an API key and start building. Paid plans add higher rate limits.
- What is the context window of Seed Rp?
- Seed Rp supports a context window of up to 524K tokens. It can return up to 16K tokens in a single response.
- What can Seed Rp do?
- Seed Rp supports Tool calling.
- Is Seed Rp free to use?
- Yes — Seed Rp is on the free tier. You can use it with an Api.Airforce API key at no cost.
- How do I use Seed Rp via the API?
- Seed Rp is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID seed-rp with your Api.Airforce API key.
- Who makes Seed Rp?
- Seed Rp is Bytedance's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.
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Use Seed Rp via the API
OpenAI-compatible — point any OpenAI SDK at https://api.airforce/v1 and pass seed-rp as the model.
cURL
curl https://api.airforce/v1/chat/completions \
-H "Authorization: Bearer $AIRFORCE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "seed-rp",
"messages": [{ "role": "user", "content": "Hello!" }]
}'Python
from openai import OpenAI
client = OpenAI(base_url="https://api.airforce/v1", api_key="$AIRFORCE_API_KEY")
r = client.chat.completions.create(
model="seed-rp",
messages=[{"role": "user", "content": "Hello!"}],
)
print(r.choices[0].message.content)JavaScript
import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://api.airforce/v1", apiKey: process.env.AIRFORCE_API_KEY });
const r = await client.chat.completions.create({
model: "seed-rp",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(r.choices[0].message.content);