Jamba 1.5 Mini (SSM)vsJamba 1.5 Mini
AI21 Labs vs AI21 Labs — Side-by-side model comparison
Head-to-Head Comparison
| Metric | Jamba 1.5 Mini (SSM) | Jamba 1.5 Mini |
|---|---|---|
| Provider | ||
| Arena Rank | — | — |
| Context Window | 256K | 256K |
| Input Pricing | /bin/zsh.20/1M tokens | $0.20/1M tokens |
| Output Pricing | /bin/zsh.40/1M tokens | $0.40/1M tokens |
| Parameters | 52B (12B active) | 52B (12B active) |
| Open Source | Yes | Yes |
| Best For | Efficient long-context processing, throughput | Cost-effective long-context, summarization |
| Release Date | Mar 28, 2024 | Aug 22, 2024 |
Jamba 1.5 Mini (SSM)
Jamba is AI21 Labs' pioneering hybrid architecture that combines Mamba state-space model layers with transformer attention layers. This novel approach achieves 3x throughput improvement over pure transformer models of equivalent quality. The Jamba architecture represents a significant step toward more efficient AI models that can process long contexts without the quadratic cost of full attention.
View AI21 Labs profile →Jamba 1.5 Mini
Jamba 1.5 Mini is AI21 Labs' efficient model sharing the same hybrid SSM-Transformer architecture as its larger sibling. At 52 billion total parameters with only 12 billion active, it delivers strong performance on long-context tasks while being highly cost-effective. The 256K context window combined with low inference costs makes it particularly attractive for applications processing large volumes of documents.
View AI21 Labs profile →Key Differences: Jamba 1.5 Mini (SSM) vs Jamba 1.5 Mini
Jamba 1.5 Mini (SSM) has 52B (12B active) parameters vs Jamba 1.5 Mini's 52B (12B active), which affects inference speed and capability.
When to use Jamba 1.5 Mini (SSM)
- +Your use case involves efficient long-context processing, throughput
When to use Jamba 1.5 Mini
- +Your use case involves cost-effective long-context, summarization
Cost Analysis
Both models have similar pricing. For a typical enterprise workload processing 100M tokens per month:
Jamba 1.5 Mini (SSM) monthly cost
$30
100M tokens/mo (50/50 in/out)
Jamba 1.5 Mini monthly cost
$30
100M tokens/mo (50/50 in/out)
The Verdict
This is a close matchup. Jamba 1.5 Mini (SSM) and Jamba 1.5 Mini each win in different categories, making the choice highly dependent on your use case. Choose Jamba 1.5 Mini (SSM) for efficient long-context processing, throughput. Choose Jamba 1.5 Mini for cost-effective long-context, summarization.
Last compared: March 2026 · Data sourced from public benchmarks and official pricing pages