Provider - 2 models
AI21 Labs API models
The registry lists 2 AI21 Labs models with first-party API prices, context windows and release dates. The newest is Jamba2 Mini, released January 8, 2026. Jamba2 Mini has the lowest output price at $0.40 per 1M tokens ($0.20 input). The largest context window is 256,000 tokens, on Jamba Large 1.7 and Jamba2 Mini. All of them publish open weights.
Last verified . Sources
- Models
- 2
- Lowest output / 1M
- $0.40
- Largest context
- 256K
- Open weights
- 2 of 2
Every AI21 Labs model
| Model | API model id | Input / 1M | Output / 1M | Context | Max output | Released | Open weights |
|---|---|---|---|---|---|---|---|
| Jamba2 Mini | jamba-mini-2 | $0.20 | $0.40 | 256K | 4K | Yes | |
| Jamba Large 1.7 | jamba-large-1.7 | $2 | $8 | 256K | 4K | Yes |
Prices in USD per 1M tokens at the standard rate, newest release first. A dash means no primary page states that fact. Open a model for cache, batch and long-context rates.
Capabilities
| Model | Tool calling | Structured outputs | Image input | Audio input | Prompt caching | Batch API | Reasoning |
|---|---|---|---|---|---|---|---|
| Jamba2 Mini | Yes | No | No | No | Not stated | Not stated | Not stated |
| Jamba Large 1.7 | Yes | No | No | No | Not stated | Not stated | Not stated |
From each model's API docs; open a model for the source behind every answer. Not stated means the provider's docs do not say either way. It is not the same as No. Compare every provider.
FAQ
What is the cheapest AI21 Labs model?
By output price, Jamba2 Mini is the cheapest AI21 Labs model in the registry at $0.40 per 1M output tokens and $0.20 per 1M input tokens, per ai21.com on October 17, 2026.
Which AI21 Labs model has the largest context window?
2 AI21 Labs models share the largest context window in the registry, 256,000 tokens: Jamba Large 1.7 and Jamba2 Mini.
What is the newest AI21 Labs model?
Jamba2 Mini is the most recent AI21 Labs release in the registry, released on January 8, 2026.
Which AI21 Labs models have open weights?
All 2 AI21 Labs models in the registry publish open weights: Jamba2 Mini and Jamba Large 1.7.
Sources
Prices last verified from ai21.com.
Further primary sources (6)
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