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Side-by-side comparison of API pricing, context window, latency, and benchmark performance. Data refreshed daily from provider APIs and ModelStop's own latency probes.
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
AI21 Jamba 1.6 Mini is 0% cheaper
| Spec | AI21 Jamba 1.6 Mini | xAI: Grok 4 Fast |
|---|---|---|
| Provider | ai21 | x-ai |
| Input price / 1M tokens | $0.20 | $0.20 |
| Output price / 1M tokens | $0.40 | $0.50 |
| Context window | 256k tokens | 2000k tokens |
| Latency (p50) | — | — |
| Best benchmark score | — | — |
| Open source | No | No |
AI21 Jamba 1.6 Mini is a lightweight Mamba-Transformer hybrid optimized for cost-effective, high-throughput inference with an impressive 256K context window. An excellent choice for document-heavy workloads on a budget.
Grok 4 Fast is xAI's latest multimodal model with SOTA cost-efficiency and a 2M token context window. It comes in two flavors: non-reasoning and reasoning. Read more about the model...
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