AI21 Labs API pricing

Official9 language models

As of Oct 14, 2026, AI21 Labs lists 9 language models through its API. Its cheapest language model is Jamba 1.5 at $0.20 input / $0.40 output per million tokens.

Language models (9)

Prices per million tokens.

Model	Input	Output	Cached input	Context
Jamba 1.5 jamba-1.5	$0.20	$0.40	—	256K
Jamba 1.5 Large jamba-1.5-large	$2.00	$8.00	—	256K
Jamba 1.5 Mini jamba-1.5-mini	$0.20	$0.40	—	256K
Jamba Large jamba-large	$2.00	$8.00	—	256K
Jamba Large 1.6 jamba-large-1.6	$2.00	$8.00	—	256K
Jamba Large 1.7 jamba-large-1.7	$2.00	$8.00	—	256K
Jamba Mini jamba-mini	$0.20	$0.40	—	256K
Jamba Mini 1.6 jamba-mini-1.6	$0.20	$0.40	—	256K
Jamba Mini 1.7 jamba-mini-1.7	$0.20	$0.40	—	256K

Jamba 1.5
jamba-1.5
Input
$0.20
Output
$0.40
Context
256K
Jamba 1.5 Large
jamba-1.5-large
Input
$2.00
Output
$8.00
Context
256K
Jamba 1.5 Mini
jamba-1.5-mini
Input
$0.20
Output
$0.40
Context
256K
Jamba Large
jamba-large
Input
$2.00
Output
$8.00
Context
256K
Jamba Large 1.6
jamba-large-1.6
Input
$2.00
Output
$8.00
Context
256K
Jamba Large 1.7
jamba-large-1.7
Input
$2.00
Output
$8.00
Context
256K
Jamba Mini
jamba-mini
Input
$0.20
Output
$0.40
Context
256K
Jamba Mini 1.6
jamba-mini-1.6
Input
$0.20
Output
$0.40
Context
256K
Jamba Mini 1.7
jamba-mini-1.7
Input
$0.20
Output
$0.40
Context
256K

Prices in USD from LiteLLM and models.dev, checked daily; confirm on AI21 Labs's pricing page before you rely on a number.