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[ARTICLE · art-147054] src=llmstatus.ai ↗ pub= topic=large-language-models verified=true sentiment=· neutral

New model: Leanstral 1.5 (Mistral AI)

Mistral AI released Leanstral 1.5 on 2026-06-30, a text-and-image model with a 262k-token context window and 128k maximum output, according to the model listing at labs-leanstral-1-5-1. No retirement date has been announced for the model, which is also identified as mistral/labs-leanstral-1-5-1.

read1 min views1 publishedOct 7, 2026
New model: Leanstral 1.5 (Mistral AI)
Image: Llmstatus (auto-discovered)

MS● Healthy

Mistral AI · labs-leanstral-1-5-1

Released2026-06-30

Retiresno announced date

leanstraltext+image262k context128k max out

also matches:

`labs-leanstral-1-5-1`` mistral/labs-leanstral-1-5-1`
[provider announcement →](https://models.dev/mistral/labs-leanstral-1-5-1)

Does your code call Leanstral 1.5?

$ curl -fsSL https://llmstatus.ai/install.sh | bash

Then mm status in any repo — it finds every model you use and flags the ones on a clock. No account, nothing uploaded.

Get alerted before it retires →

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