Spire Global, Inc. reports 14.2 percent performance boost over ECMWF S2S in comparative test

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22.05.2026

Spire Global, Inc. reports 14.2 percent performance boost over ECMWF S2S in comparative test — Spire AI model scores higher

Spire Global, Inc. has published model validation results showing its AI-S2S system achieved a 14.2 percent improvement over ECMWF's S2S model for 2-meter temperature forecasts during a six-week verification period.

The company also reported a 3.23 percent improvement on 500-millibar heights based on Continuous Ranked Probability Score (CRPS), underscoring the comparative strength of its artificial intelligence-powered approach. The detailed validation chart is available for further examination, offering transparency on the performance data in the sub-seasonal to seasonal weather forecasting domain.

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Spire Global has recently expanded its presence in aviation technology. The company secured a contract to integrate real-time aircraft tracking for AmadeusITGroup. This initiative aims to improve operational visibility at airports.

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