LLM Perks

Syn Pro

Free right now Frontier New

Syn Pro 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
November 8, 2026

Where to use Syn Pro for free

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

ProviderContextLimitCard
UnoRouter
syn-pro: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": "syn-pro: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 We do not publish our own estimates.

Similar free models

FAQ

Is Syn Pro free?

Yes. As of November 8, 2026, Syn Pro is free at UnoRouter. Each provider has its own limits — see the table above.

What is the context window of Syn Pro?

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

How do I call Syn Pro via API?

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