GemAI v3 Model Release is available March 24, 2026

The v3 GemAI model GA release is available with updated hindcasts.

**Readme file here**.

Major highlights include:

• Higher temporal resolution and update frequency for first 2 weeks

• Significant accuracy gains
  • ~1 day of medium-range predictability over gemAI v2
  • Better constrained S2S behavior
• Additional variables
  • 2m temperature (instantaneous)
  • 2m temperature (mean)
  • wind 100m u/v component (instantaneous)
  • snowfall (mean rate)
• Instantaneous variables(formerly daily averages)
  • hgt500
  • mslp

Access

• Access the latest version is available via Cloudflare. API and web interface access will be available no later than May 4, 2026.
• v3 will become the default Salient gemAI model version on May 4, 2025. v2 will continue to be available via the API and web interface by specifying the appropriate model name.
• Operational forecasts start January 1, 2026, 200 ensemble members
• The reforecast schedule is listed below. All reforecasts include 50 samples and an extended reforecast history is available for the subseasonal and seasonal timescales.
  • 14 leads daily are available from 2020-01-01
  • 46 leads weekly on Wednesday are available from 2000-01-01.
  • The full 126 leads are available monthly on the start of month from 2000-01-01.

March 23, 2026

Salient Blend v8 and gemAI v1 deprecated

Real time forecasts and hindcasts for Salient gemAI v1 will no longer be available after March 23, 2026. Access will be removed from Cloudflare and the API.

Real time forecasts and hindcasts for Salient Blend v8 will no longer be generated after March 23, ****2026. The model version selector has been removed from the user interface and the version argument has been removed from the Swagger API documentation. Existing code that references version = v8 should be updated.

Weekly and Monthly Skill Scores for gemAI

Subseasonal and seasonal gemAI skill scores are available in the web interface.

Downscale endpoint lengthparameter no longer requires 35 as the minimum

The validation for length allows 1 instead of 35 as the minimum.

February 23, 2026

Enwex Indices