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 acc…
Model details →AI21: Jamba Large 1.7 vs OpenAI: GPT-5 Pro
OpenAI: GPT-5 Pro wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
GPT-5 Pro is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy in high-stake…
Model details →Side-by-side comparison
| Capability | AI21: Jamba Large 1.7 | OpenAI: GPT-5 Pro | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 256K | 400K | 🏆 OpenAI: GPT-5 Pro |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $15.00 | 🏆 AI21: Jamba Large 1.7 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $8.00 | $120.00 | 🏆 AI21: Jamba Large 1.7 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | Yes | 🏆 OpenAI: GPT-5 Pro |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | Yes | 🏆 OpenAI: GPT-5 Pro |
Frequently asked questions
Is AI21: Jamba Large 1.7 better than OpenAI: GPT-5 Pro?
OpenAI: GPT-5 Pro wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between AI21: Jamba Large 1.7 and OpenAI: GPT-5 Pro?
Input: $2.00 vs $15.00 per 1M tokens. Output: $8.00 vs $120.00 per 1M tokens.
What context windows do AI21: Jamba Large 1.7 and OpenAI: GPT-5 Pro support?
AI21: Jamba Large 1.7 supports up to 256K tokens. OpenAI: GPT-5 Pro supports up to 400K tokens.
Do both AI21: Jamba Large 1.7 and OpenAI: GPT-5 Pro support tool calling?
AI21: Jamba Large 1.7: yes. OpenAI: GPT-5 Pro: yes.