Context
8K
Max output
8K
Serving providers
2
Cheapest input
$15.00 /1M
Prices are on-demand list rates. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.
Pricing by serving provider
standard tier · per 1M tokens · click a provider to expandInput pricing runs from $15.00 to $18.80 per 1M tokens across 2 providers, so the dearest route costs 25% more than the cheapest for the same model.
| Serving provider | Input /1M | Output /1M | Endpoints | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ai21Cheapest | $15.00 | $15.00 | 1 | ||||||||||||||||
| |||||||||||||||||||
| Amazon Bedrock | $18.80 | $18.80 | 1 | ||||||||||||||||
| |||||||||||||||||||
Price history
input + output $/1M since we started tracking Input Output
Cost calculator
estimate your monthly spend on this model$4,200
estimated / month
Model IDs
copy the exact identifier for your platformj2-ultraai21.j2-ultra-v1
Frequently asked questions
J2 Ultra pricing, context and availabilityHow much does J2 Ultra cost?
J2 Ultra costs $15.00 per 1M input tokens and $15.00 per 1M output tokens at its cheapest provider via Ai21. Across 2 serving providers, input prices range from $15.00 to $18.80 per 1M tokens.
What is the context window of J2 Ultra?
J2 Ultra accepts up to 8K tokens of context and can return up to 8K output tokens.
Which providers serve J2 Ultra?
J2 Ultra is available from 2 serving providers, each with its own pricing and model ID. Ai21 is currently the cheapest.
Other AI21 models
compare pricing across the AI21 lineup Pricing verified against LiteLLM + OpenRouter + provider pages · refreshed daily
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