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Favicon for ai21

AI21: Jamba Large 1.7

ai21/jamba-large-1.7

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Jamba Large 1.7 is the latest model in the Jamba open family, offering improvements in grounding, instruction-following, and overall efficiency. Built on a hybrid SSM-Transformer architecture with a 256K context window, it delivers more accurate, contextually grounded responses and better steerability than previous versions.

Modalities

In / Out Price

$2 / $8per 1M

Context

256K

Released

Aug 8, 2025

Knowledge Cutoff

Aug 2024

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ProvidersPricingPerformanceUptimeBenchmarksAppsActivityFAQ

Providers

This model is hosted by one provider. OpenRouter forwards every request to it directly — no routing decisions to make.

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Benchmarks

Scores on standardized evaluations. Higher percentages are better — and rank percentile shows where this model lands among all models on OpenRouter.

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Activity

Token volume and request traffic to this model over time.

Quick Start

Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.

About AI21: Jamba Large 1.7

OpenRouter makes AI21: Jamba Large 1.7 available through a unified, OpenAI-compatible API using the model ID ai21/jamba-large-1.7. It is served by AI21.

AI21: Jamba Large 1.7 accepts text and returns text. It has a 256,000-token context window and a maximum output of 4,096 tokens.

On OpenRouter, AI21: Jamba Large 1.7 costs $2.00/M input tokens and $8.00/M output tokens. It was released on August 8, 2025; its knowledge cutoff is August 31, 2024.

Frequently asked questions

Jamba Large 1.7 is the latest model in the Jamba open family, offering improvements in grounding, instruction-following, and overall efficiency. Built on a hybrid SSM-Transformer architecture with a 256K context window, it delivers more accurate, contextually grounded responses and better steerability than previous versions.

Jamba Large 1.7 costs $2.00/M input tokens and $8.00/M output tokens.

Jamba Large 1.7 has a 256,000 token context window. It supports up to 4,096 completion tokens.

Yes. Jamba Large 1.7 accepts tools and tool_choice for function calling. It supports response_format for JSON output, without JSON-schema enforcement.

Jamba Large 1.7 was released on August 8, 2025. Its knowledge cutoff is August 31, 2024.

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Not enough uptime data to display yet.

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and customization options.

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