AI21 Labs models

5 models5 current5 open weights
#154of 195Jamba 1.5 Large?Writing · Arena Text · Creative writing
Oct 8, 2025Jamba Reasoning 3Bnewest release
$2 / $8Jamba 1.7 Large?cheapest · per 1M in / out
2categories ranked?Chat · Writing

Current lineup?

Writing & Language

Arena Text · creative writing · 195 ranked
Full ranking →
RankModelEloIn / out
#154 of 195Jamba 1.5 Large1,261—#170 of 195Jamba 1.5 Mini1,211—

AI21 Labs API pricing?

1 models
ModelInputOutputCache readContextReleased ↓Status
Jamba 1.7 Large
$2$8—256KJul 2025