AI21 Labs
1 model built · 1 served
AI21 Labs is a Tel Aviv company founded in 2017, known for the Jamba family of hybrid Mamba-Transformer models. That architecture mix is the whole point: standard transformers slow down and get expensive as context grows, and Jamba's design is built to handle long documents more efficiently. On OpenKey, AI21's lineup is a single model, Jamba Large 1.7, released August 2025. It's a text-to-text model with a 256K token context window, which puts it in the same long-context tier as much larger labs' flagship offerings. If your work involves feeding in long documents, transcripts, or codebases and you want a lab that built its architecture around that problem rather than bolting it on, Jamba Large 1.7 is worth testing.
Lineup
There's no lineup to navigate here — AI21 has exactly one model on OpenKey, Jamba Large 1.7, at $2.00 per 1M input tokens and $8.00 per 1M output tokens (OpenKey price: $2.06 in / $8.24 out, provider price x 1.03). With no free tier and no cheaper sibling model, the decision is simply whether the 256K context window and hybrid architecture fit your use case, not which AI21 model to pick.
- Jamba Large 1.7Aug 8, 2025 256K $2.06 $8.24 ctx 256K · in $2.06 · out $8.24
Prices per 1M tokens, flat 3% fee included.
Models AI21 Labs serves
Beyond its own models, AI21 Labs hosts 1 model in the OpenKey catalog. Prices are AI21 Labs’s own list price per 1M input tokens, before our fee.
| Model | Built by | Context | Input /M |
|---|---|---|---|
| Jamba Large 1.7 | AI21 Labs | 256K | $2.00 |
From the OpenRouter catalog, Jul 28, 2026. All providers
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Questions
- What does AI21's Jamba Large 1.7 cost on OpenKey?
- $2.00 per 1M input tokens and $8.00 per 1M output tokens at provider list price. On OpenKey that's $2.06 in / $8.24 out after the flat 3% fee (2.00 x 1.03 and 8.00 x 1.03). There's only one AI21 model available, so this is also the cheapest and only option in the lineup.
- Does AI21 offer a free model on OpenKey?
- No. AI21 has zero free models in its lineup of 1 total model on OpenKey. If you need a free option, look at labs with dedicated free tiers — OpenKey lists 25 free models across its 52 labs.
- What is AI21 known for and when did it release its latest model?
- AI21 Labs, founded in Israel in 2017, built the Jamba family around a hybrid Mamba-Transformer architecture aimed at long-context efficiency. Its current OpenKey model, Jamba Large 1.7, was released August 8, 2025, with a 256,000 token context window — that long-context focus is the lab's defining trait.