GPT-5 Pro vs Jamba 1.5 Mini
OpenAI vs AI21 Labs — benchmarks, pricing, and capabilities side by side.
- •GPT-5 Pro has the higher intelligence index (88.4 vs 29.6)
- •Jamba 1.5 Mini is cheaper ($0.20 vs $15.00 per 1M input)
- •GPT-5 Pro has a larger context window (400K)
| GPT-5 Pro | Jamba 1.5 Mini | |
|---|---|---|
| Intelligence index | 88.4 | 29.6 |
| Developer | OpenAI | AI21 Labs |
| Type | LLM | LLM |
| Access | API only | Open weights |
| Context window | 400,000 tokens | 256,144 tokens |
| Input price | $15.00 / 1M | $0.20 / 1M |
| Output price | $120.00 / 1M | $0.40 / 1M |
| Speed | — | 100 tok/s |
| Released | October 6, 2025 | August 22, 2024 |
| Parameters | — | 52000000000 |
| Input modalities | Text, Image | — |
| Output modalities | Text | — |
Shared benchmarks
GPT-5 Pro
Jamba 1.5 Mini
GPQA Diamond
88.4
32.3
Humanity’s Last Exam
42
5.1