AI Model Comparison
Side-by-side comparison of pricing, context window, benchmarks, capabilities, and license. Every figure comes from the developer's own pages, last checked on ; each model's page lists its sources. A figure we could not source shows as a dash.
Model A — xAI
Grok 4 is a model from xAI, launched on July 9, 2025 alongside Grok 4 Heavy. xAI says it was trained with reinforcement learning to use tools, including real-time search, and that its API handles text and vision.
Model B — AI21 Labs
Jamba Large 1.7 is the Large model of AI21 Labs’ Jamba family, released on July 3, 2025, built on its hybrid SSM-Transformer (Mamba-Transformer) architecture with a 256K-token context window; AI21 says version 1.7 improves grounding and instruction-following.
| Property | Grok 4 | Jamba Large 1.7 |
|---|---|---|
| Released | Jul 9, 2025 | Jul 3, 2025 |
| Developer | xAI | AI21 Labs |
| Type | multimodal | llm |
| License | proprietary | open-weight |
| Context window | 256,000 | — |
| Parameters | — | 398B total, 94B active |
| Developer status | Retired | — |
| Input $/M tokens | — | $2.00 |
| Output $/M tokens | — | $8.00 |
Bold green values indicate the winner on that dimension where comparison is meaningful (lower price wins; bigger context wins; more open license wins; newer date wins). Prices are the ones each developer lists today; a model it no longer prices has none.
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