Changes from previous version
New architecture generation with 9B and 27B models; 2B followed in July. Large gains on MMLU and coding versus Gemma 1 at similar serving cost.
Release Summary
Gemma 2 in 9B and 27B sizes with grouped-query attention and stronger efficiency at inference than Gemma 1.
Timeline
July 31, 2024
Gemma 2 2B released
Google adds a 2B Gemma 2 checkpoint for edge and mobile deployments.
June 27, 2024
Gemma 2 (9B, 27B) released
Google launches Gemma 2 flagship open weights in 9B and 27B sizes.