What was presented on 6 October
On 6 October 2026, Mistral announced a public preview of Large 4, a multimodal model for coding and tool use. The announcement describes European training and serving infrastructure and highlights deployment control.
The listing reviewed on 28 October retained the Public Preview label. Announced weights for the end of the month were a forecast, not confirmation of an available download. Verify published resources before considering self-hosting. Performance claims belong to Mistral, not iabot tests.
What a business can evaluate
Start with a bounded document task: compare versions of an internal procedure and report changes with page references. Supply an approved version, a candidate and important criteria. Distinguish content differences, questions and suggestions.
This tests instruction following, preservation of names and grounding of conclusions. A person reviews the report and approves the procedure. Document generation does not replace the process owner's responsibility.
Compare how it operates too
A business comparison should cover cost per completed task, stability, infrastructure requirements and review effort. Self-hosting also requires deciding who maintains the service and measures results.
Repeat checks as a preview model changes. A pilot can train the team and document a repeatable process. This article covers the announcement and proposes evaluation; it does not confirm Mistral Large 4 integration in Hub Bot.
Sources and documentation
Provider announcements and results are attributed to their sources. Use cases are editorial proposals, not our own tests or confirmation of model availability in iabot.