LLM Perks

Ising Calibration 1.5 31B

Free right now Mid-size
Long context

Ising Calibration 1.5 31B is a language model with 31B parameters. It is currently free at 1 provider with up to 262K tokens of context.

Parameters
31B
Context
262K tokens
Type
Text

Where to use Ising Calibration 1.5 31B for free

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

ProviderContextLimitCard
UnoRouter
ising-calibration-1.5-31b:free
262K 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": "ising-calibration-1.5-31b: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 We do not publish our own estimates.

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FAQ

Is Ising Calibration 1.5 31B free?

Yes. As of September 26, 2026, Ising Calibration 1.5 31B is free at UnoRouter. Each provider has its own limits — see the table above.

What is the context window of Ising Calibration 1.5 31B?

The largest context among free routes is 262,144 tokens. Some providers cap it lower.

How do I call Ising Calibration 1.5 31B via API?

Use any OpenAI-compatible client with base URL https://api.unorouter.com/v1, model ID ising-calibration-1.5-31b:free, and a UnoRouter key.