BedrockExplorer

Jamba 1.5 Large

AI21 Labs · LEGACY · available in 1 of 31 regions

Cost calculator Compare
Tool useStreaming VisionPrompt cachingBatch inferenceEmbeddingsFine-tuning
Context window
256K
256,000 tokens
Max output
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Input / 1M
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Output / 1M
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What Jamba 1.5 Large is good for

editorial

Jamba 1.5 Large offers a 256K-token context window with tool use, with no token price published by AWS. Callable in 1 of 31 regions.

Suits

  • Long documents. 256K tokens covers long documents and multi-file context without splitting them.
  • Tool use. Can call functions, so it can drive retrieval, look things up, and take actions rather than only answering.

Think twice if

  • Agentic loops. No prompt caching published, so every step re-pays full price for the prompt prefix. Expensive for agents that resend a long context.
  • Documents with layout. Text only. Scanned PDFs, screenshots and charts need a vision model or an OCR step first.
  • Data residency. Available in only 1 of 31 regions, so it may not clear a residency requirement.

This section is judgement, not data from AWS. It is composed from the capabilities, context window, price position and region coverage shown elsewhere on this page — so it stays in step with the daily snapshot rather than going stale.

Where teams typically use it

RAG and retrieval

Answering from your own documents, with the retrieved passages in the prompt.

  • · An internal search over contracts and policies that quotes the clause it answered from.
  • · A product assistant grounded in the current documentation rather than the training data.
  • · A research summariser that reads twenty retrieved papers and reconciles where they disagree.

Model & inference profile IDs

Base model ID — direct on-demand invoke

Pricing by region

USD per 1M tokens

No published token pricing

The AWS Price List API publishes no token SKU for this model, and it is not in our curated overlay. This is common for embedding, image and video models, which bill per request or per second rather than per token.

Check the AWS pricing page →

Region availability

On-demand us-east-1 On-demand Not available us-east-2 Not available Not available us-west-1 Not available Not available us-west-2 Not available Not available ca-central-1 Not available Not available ca-west-1 Not available Not available mx-central-1 Not available Not available eu-west-1 Not available Not available eu-west-2 Not available Not available eu-west-3 Not available Not available eu-central-1 Not available Not available eu-central-2 Not available Not available eu-north-1 Not available Not available eu-south-1 Not available Not available eu-south-2 Not available Not available ap-east-2 Not available Not available ap-northeast-1 Not available Not available ap-northeast-2 Not available Not available ap-northeast-3 Not available Not available ap-south-1 Not available Not available ap-south-2 Not available Not available ap-southeast-1 Not available Not available ap-southeast-2 Not available Not available ap-southeast-3 Not available Not available ap-southeast-4 Not available Not available ap-southeast-5 Not available Not available ap-southeast-6 Not available Not available ap-southeast-7 Not available Not available il-central-1 Not available Not available af-south-1 Not available Not available sa-east-1 Not available

TPM / RPM are default account quotas from AWS Service Quotas where a model-specific limit is published. They are per-account defaults and adjustable on request.

Where this model actually runs

Under a strict residency constraint, Jamba 1.5 Large can be served without the request leaving 1 of the 25 jurisdictions with a Bedrock region.

United States All jurisdictions →

Jamba 1.5 Large appears in

Tool use / function calling Long context (200K+)

Common questions

Which AWS regions support Jamba 1.5 Large?
1 of 31 regions: us-east-1.
What is the context window of Jamba 1.5 Large?
256,000 tokens (256K).
What is the model ID for Jamba 1.5 Large on Bedrock?
ai21.jamba-1-5-large-v1:0.

Other AI21 Labs models

Jamba 1.5 Mini Compare these →