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From Impossibl's own documentation (impossibl.com), quoted on this page. ModelClock rechecks it on every collection; last checked Oct 19, 2026.

Impossibl · First-party API · LLM

stepfun/step-3.7-flash

Release announcedReleased on Oct 9, 2026

Impossibl released stepfun/step-3.7-flash on Oct 9, 2026. Source: impossibl.com · Last checked Oct 19, 2026

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Release announced

Released on Oct 9, 2026

Impossibl announced this model on 2026-10-09.

Hosting route: First-party API
Affected scope: Not stated in the notice
Announced: Oct 9, 2026
First seen by ModelClock: Oct 9, 2026

What the provider published

impossibl.com ↗

oct 9, 2026

stepfun/step-3.7-flash

new model

Step 3.7 Flash joins the gateway.

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