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Z.ai timeline

Every model launch, feature release, outage, usage-limit change and price move we have tracked, newest first. Each links to its sources.

Models, 90 days1Confirmed launches
Features, 90 days0Products and updates
Incidents, 90 days0From status pages and reports
Limits and pricing0Changes in 90 days

Model lineup

Every Z.ai model in our catalogue, newest first, with context and list price per million tokens (input / output). Compare all prices

Sep 2026GLM 5.3 FlashXEfficient · 1M ctx$0.37 / $1.25
Aug 2026GLM 5.3 FlashEfficient · 1.25M ctx$0.15 / $0.50
Aug 2026GLM 5.3Frontier · 1.25M ctx$1.40 / $4.40
Jun 2026GLM-5.2Frontier · 1M ctx$1.40 / $4.40
Apr 2026GLM-5V-TurboBalanced · 200K ctx$1.20 / $4.00
Apr 2026GLM-5.1Reasoning · 1M ctx$1.40 / $4.40
Feb 2026GLM-5Open · 1M ctxOpen weights
2026GLM-5-TurboBalanced · 200K ctx$1.20 / $4.00
Dec 2025GLM-4.7Open · 200K ctx$0.60 / $2.20
Dec 2025GLM-4.7-FlashEfficient · 128K ctxFree
Dec 2025GLM-4.6VBalanced · 128K ctx$0.30 / $0.90
Dec 2025GLM-4.6V-FlashEfficient · 128K ctxFree
Sep 2025GLM-4.6Legacy · 200K ctx$0.60 / $2.20
Aug 2025GLM-4.5VLegacy · 131K ctx$0.60 / $1.80
Jul 2025GLM-4.5Legacy · 131K ctx$0.60 / $2.20
Jul 2025GLM-4.5-AirEfficient · 131K ctx$0.20 / $1.10
Jul 2025GLM-4.5-XFlagship · 131K ctx$2.20 / $8.90
Jul 2025GLM-4.5-FlashEfficient · 131K ctxFree
2024GLM-4-PlusLegacy · 128K ctxSee pricingRetired
2024GLM-4-9BLegacy · 128K ctxOpen weightsRetired

Timeline

Milestones first. Minor items (small updates, brief status-page incidents, posts without news) are one tap away.

September 2026

  1. month
    GLM 5.3 FlashX releasedEfficient · 1M context · $0.37 in / $1.25 out per 1M

August 2026

  1. 14 Aug
    Z.ai releases GLM-5.3 for frontier codingModels · New model generation from a lab · 1.25M context · $1.40 in / $4.40 out per 1M
  2. month
    GLM 5.3 Flash releasedEfficient · 1.25M context · $0.15 in / $0.50 out per 1M

June 2026

  1. month
    GLM-5.2 releasedFrontier · 1M context · $1.40 in / $4.40 out per 1M

April 2026

  1. month
    GLM-5V-Turbo releasedBalanced · 200K context · $1.20 in / $4.00 out per 1M
  2. month
    GLM-5.1 releasedReasoning · 1M context · $1.40 in / $4.40 out per 1M

February 2026

  1. month
    GLM-5 releasedOpen · 1M context

2026, month not published

  1. month
    GLM-5-Turbo releasedBalanced · 200K context · $1.20 in / $4.00 out per 1M

December 2025

  1. month
    GLM-4.7 releasedOpen · 200K context · $0.60 in / $2.20 out per 1M
  2. month
    GLM-4.7-Flash releasedEfficient · 128K context
  3. month
    GLM-4.6V releasedBalanced · 128K context · $0.30 in / $0.90 out per 1M
  4. month
    GLM-4.6V-Flash releasedEfficient · 128K context

September 2025

  1. month
    GLM-4.6 releasedLegacy · 200K context · $0.60 in / $2.20 out per 1M

August 2025

  1. month
    GLM-4.5V releasedLegacy · 131K context · $0.60 in / $1.80 out per 1M

July 2025

  1. month
    GLM-4.5 releasedLegacy · 131K context · $0.60 in / $2.20 out per 1M
  2. month
    GLM-4.5-Air releasedEfficient · 131K context · $0.20 in / $1.10 out per 1M
  3. month
    GLM-4.5-X releasedFlagship · 131K context · $2.20 in / $8.90 out per 1M
  4. month
    GLM-4.5-Flash releasedEfficient · 131K context

2024, month not published

  1. month
    GLM-4-Plus releasedLegacy · 128K context · retired
  2. month
    GLM-4-9B releasedLegacy · 128K context · retired

Stories come from the Wire from July 2026 on; earlier model releases come from our catalogue and are dated to the month. Z.ai on the Vikshy Score