LLM Perks

Intern S1

Free right now Small New

Intern S1 is a language model. It is currently free at 1 provider with up to 66K tokens of context.

Context
66K tokens
Type
Text
Free since
October 1, 2026

Where to use Intern S1 for free

Each row is a separate free endpoint with its own limits.

ProviderContextLimitCard
UnoRouter
intern-s1:free
66K No-card free models use shared capacity and per-model limits; availability can change. No Open

Quick start

curl https://api.unorouter.com/v1/chat/completions \
  -H "Authorization: Bearer $UNOROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "intern-s1:free",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Example for UnoRouter. Any OpenAI-compatible client works: Cursor, Cline, OpenCode, Open WebUI.

Benchmarks

This model is not on the Artificial Analysis leaderboard yet. We do not publish our own estimates.

FAQ

Is Intern S1 free?

Yes. As of October 1, 2026, Intern S1 is free at UnoRouter. Each provider has its own limits — see the table above.

What is the context window of Intern S1?

The largest context among free routes is 65,536 tokens. Some providers cap it lower.

How do I call Intern S1 via API?

Use any OpenAI-compatible client with base URL https://api.unorouter.com/v1, model ID intern-s1:free, and a UnoRouter key.