LLM Perks

Leanstral 1.5

Mistral AI · All Mistral models
Free right now Small
Long context

Leanstral 1.5 is a language model from Mistral AI. It is currently free at 1 provider with up to 262K tokens of context.

Developer
Mistral AI
Context
262K tokens
Type
Text

Where to use Leanstral 1.5 for free

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

ProviderContextLimitCard
UnoRouter
leanstral-1-5: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": "leanstral-1-5: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 We do not publish our own estimates.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 Leanstral 1.5 free?

Yes. As of September 27, 2026, Leanstral 1.5 is free at UnoRouter. Each provider has its own limits — see the table above.

What is the context window of Leanstral 1.5?

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

How do I call Leanstral 1.5 via API?

Use any OpenAI-compatible client with base URL https://api.unorouter.com/v1, model ID leanstral-1-5:free, and a UnoRouter key.