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 — OpenAI
GPT-6.1 Terra is an OpenAI reasoning model released in the API on October 26, 2026, which OpenAI positions as a fast, efficient model for visual reasoning, computer use and writing. It takes text and image input, returns text, and has a June 1, 2026 knowledge cutoff.
Model B — xAI
Grok 4.7 is a model from xAI for coding, agentic tasks and knowledge work, announced on September 21, 2026 and served on the xAI API as grok-4.7. It takes text and image input, returns text, and has configurable reasoning effort and a May 2026 knowledge cutoff.
| Property | GPT-6.1 Terra | Grok 4.7 |
|---|---|---|
| Released | Oct 26, 2026 | Sep 21, 2026 |
| Developer | OpenAI | xAI |
| Type | reasoning | reasoning |
| License | proprietary | proprietary |
| Context window | 1,050,000 | 500,000 |
| Parameters | — | — |
| Developer status | — | — |
| Input $/M tokens | $1.00 | $2.00 |
| Output $/M tokens | $5.00 | $6.00 |
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.
Programmatic access available at /api/ai/compare?a=gpt-6-1-terra&b=grok-4-7. CORS is open. Citation guidance: /about/editorial-process.