Jamba 1.5 Large vs Sonar Reasoning Pro
AI21 Labs vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •Sonar Reasoning Pro has the higher intelligence index (95.7 vs 42.8)
- •Jamba 1.5 Large has a larger context window (256K)
| Jamba 1.5 Large | Sonar Reasoning Pro | |
|---|---|---|
| Intelligence index | 42.8 | 95.7 |
| Developer | AI21 Labs | Perplexity |
| Type | LLM | Multimodal |
| Access | Open weights | API only |
| Context window | 256,000 tokens | 128,000 tokens |
| Input price | $2.00 / 1M | $2.00 / 1M |
| Output price | $8.00 / 1M | $8.00 / 1M |
| Speed | 100 tok/s | — |
| Released | August 22, 2024 | March 7, 2025 |
| Parameters | 398000000000 | — |
| Input modalities | — | Text, Image |
| Output modalities | — | Text |
Shared benchmarks
Jamba 1.5 Large
Sonar Reasoning Pro
MATH-500
60.6
95.7