AI21

2 cards, from Jul 2025 to Jan 2026. 2 with open weights.

Latest

AI21

CTX256K

Tools

Input$0.20/M

Output$0.40/M

AI21's efficient, lightweight hybrid SSM-Transformer model for a wide range of tasks

Open weightsJamba Open Model license735/1040

AI21

CTX256K

Tools

Input$2/M

Output$8/M

AI21's hybrid SSM-Transformer long-context model for enterprise agents and grounded generation

Open weightsJamba Open Model license597/1040

Dates are release dates from models.dev; for open models found on Hugging Face, the day the repo was published.