Labs Leanstral 2603
A mid & post-trained version of mistral small 4 for Lean.
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197K
Max Output
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Parameters
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Technical Specifications
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Frequently asked questions about Labs Leanstral 2603
Answered from the entry's own fields: context, license, modalities, evidence, serving and the memory to self-host.
Labs Leanstral 2603 advertises a context window of 196,608 tokens. The figure is the creator's published maximum; a given host may serve less, and the gateway routes on what each host actually serves.
Yes. Labs Leanstral 2603 is an open-weight model released under the Apache 2.0 license, so the weights can be downloaded and self-hosted within that license's terms.
Labs Leanstral 2603 accepts Text and Image and produces Text. The capabilities card on this page lists which API features each deployment honours, such as function calling and structured output, with the source each was checked against.
No published benchmark result for Labs Leanstral 2603 is in the catalog yet, so the model is shown as unmeasured. It is not ranked or estimated; the router treats it as unknown for every task until a suite measures it.
Not on the managed pool today; Labs Leanstral 2603 is listed for reference and comparison. Connect your own provider key or endpoint that serves it and the gateway runs it on your account, with routing decisions recorded the same way.
Mistral has not published a parameter count for Labs Leanstral 2603, so the catalog cannot estimate its memory footprint. The capacity planner can size it from a parameter count you supply.
Fields collected from public registries, host APIs and benchmark publishers, each tagged with its source.
Last updated: Aug 28, 2026
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