Z.ai GLM 5.2 Deprecation
Z.ai GLM 5.2 ( zai-glm-5-2 ) is deprecated and retires on October 31, 2026. Use Z.ai GLM 5.3 ( zai-glm-5-3 ) instead, at the same price.
Mistral AI changelog: September 2026
8 releases from to
Everything Mistral AI shipped in September 2026, collected from official Mistral AI sources. Each entry is dated and links to the page it came from.
September 2026 at a glance
Released Pixtral (pixtral-12b-2409) and Mistral Small v24.09 (mistral-small-2409). Also released Magistral Medium 1.2 (magistral-medium-2509) and Magistral Small 1.2 (magistral-small-2509). OCR 4.1 and Z.ai GLM 5.3 became Generally Available.
Summary generated from the releases listed below.
September 2026 was Mistral AI's 3rd busiest month of the 12 months to then: 8 releases, close to its monthly average of 5. That was 4 releases more than August 2026. Most were Model (7), followed by API (1).
Releases
8
+4 vs August 2026
Rank of 12 months
3rd
Average 5.4 a month
Most shipped
Model
7 releases
Notable Mistral AI launches in September 2026
- Model
Z.ai GLM 5.2 Deprecation
Z.ai GLM 5.2 ( zai-glm-5-2 ) is deprecated and retires on October 31, 2026. Use Z.ai GLM 5.3 ( zai-glm-5-3 ) instead, at the same price.
Source: Mistral Docs Changelog - Model
OCR 4.0 Deprecation
OCR 4.0 ( mistral-ocr-4-0 ) is deprecated and retires on September 30, 2026. Use OCR 4.1 ( mistral-ocr-4-1 or mistral-ocr-latest ) instead, at the same price.
Source: Mistral Docs Changelog - Model
Leanstral 1.5 Deprecation
Leanstral 1.5 ( labs-leanstral-1-5 ), an experimental Labs model, is deprecated and retires on September 30, 2026.
Source: Mistral Docs Changelog
All Mistral AI releases in September 2026
Newest first. Each entry links to the official page it came from.
September 20268 releases
OCR 4.0 Deprecation
OCR 4.0 ( mistral-ocr-4-0 ) is deprecated and retires on September 30, 2026. Use OCR 4.1 ( mistral-ocr-4-1 or mistral-ocr-latest ) instead, at the same price.
Leanstral 1.5 Deprecation
Leanstral 1.5 ( labs-leanstral-1-5 ), an experimental Labs model, is deprecated and retires on September 30, 2026.
Z.ai GLM 5.3 General Availability
Z.ai GLM 5.3 ( zai-glm-5-3 ) is now Generally Available.
OCR API include_blocks Update
Introducing include_blocks parameter in OCR API for block-level bounding boxes and structural labels.
Magistral Medium 1.2 and Magistral Small 1.2 Release
We released Magistral Medium 1.2 ( magistral-medium-2509 ) and Magistral Small 1.2 ( magistral-small-2509 ).
Pixtral and Mistral Small v24.09 Release
Released Pixtral (pixtral-12b-2409) and Mistral Small v24.09 (mistral-small-2409).
Where September 2026 sits
Mistral AI releases per month, for September 2026 and the 11 months before it. A taller bar means more releases that month; the dated entries for each month are on its own page.
Other companies in September 2026
26 of the companies we track shipped in September 2026; Mistral AI ranks 10th by number of releases.
Newsletter
Stay ahead of the month's AI releases without living in every company feed.
One monthly digest of the sharpest launches, model drops, and product moves from every company we track, delivered in one clear read.
Monthly signal
The standout launches, model drops, and platform moves worth tracking.
Zero feed fatigue
One tight read instead of bouncing between company blogs and timelines.
Built for operators
Clear summaries you can scan fast and forward to the team when needed.
Monthly dispatch
Subscribe to the newsletter
Get a clean monthly dispatch covering the launches that mattered, not every minor product breadcrumb.
Monthly digestMajor launchesFast summaries
One email each month, tuned for signal over noise.