{"slug": "grok-4-6", "title": "Grok 4.6", "summary": "XAI released Grok 4.6, a proprietary frontier model built with Cursor, featuring 500K context, a knowledge cutoff of Feb 2026, and text and image input with text output. Priced at $2 per 1M input tokens and $6 per 1M output tokens (cached input $0.50 per 1M) for prompts under 200K tokens, it scored 82.5% accuracy on the Agents on Rails benchmark (Aug 2026, Le Mans round) across 63 runs, tying with ox-alpha and trailing the Opus 5, Kimi K3, and Fable 5 cluster, while achieving the best API recall of 33.3% among models with a median time of 10m 50s.", "body_md": "# Grok 4.6\n\npremier**Proprietary frontier model from xAI (SpaceXAI), built with Cursor.** ~1.5T-scale family, an extension of Grok 4.5 focused on long-running agents and ambitious interactive/visual work. 500K context, knowledge cutoff Feb 2026, text + image in, text out, reasoning effort low/medium/high/xhigh.\n\n**Pricing:** $2/1M input, $6/1M output (cached input $0.50/1M) below 200k prompt tokens; double above. Available in Grok Build, Cursor, the API, and partner gateways.\n\n**Agents on Rails benchmark (Aug 2026, Le Mans round).** 82.5% accuracy on 63 runs - tied with ox-alpha, behind only the Opus 5 / Kimi K3 / Fable 5 top cluster. API recall 33.3%, the best of any model that also kept a middling time (10m 50s median). At $0.778 mean cost it is strong accuracy-per-dollar.\n\n- 500k\n- proprietary\n- 🇺🇸 USA\n- Aug 2026\n\n## Scores\n\n## Score per dollar\n\n46 pts per $/M input\n\ngeneral_score (92) divided by cheapest input price\n($2.00/M).\nHigher is better value. [See live pricing](/models/grok-4-6/pricing).\n\n## Or run it in the cloud\n\nLive per-provider pricing, throughput and uptime - refreshed about 1 hour ago via OpenRouter. Click a column to sort.\n\n| Provider | Type | Input $/M | Output $/M | Cache $/M | Tok/s | Latency | Uptime | Value |\n|---|---|---|---|---|---|---|---|---|\n| API | 2.00 | 6.00 | - | - | - | - | cheapest |\n\nDefault order: throughput among 95%+ uptime providers, then latency; subscriptions last. Sort by any column. Subscription rows show $/mo in the Value column - per-token columns are \"-\". Affiliate links are marked sponsored / nofollow. Confirm current pricing on the provider's site before committing.\n\n[Detailed API pricing page + JSON endpoint →](/models/grok-4-6/pricing)\n\n## Inference cost over time\n\nData accumulates from the first daily sync - longer ranges populate over time. Prices come from OpenRouter snapshots, not a historical API.", "url": "https://wpnews.pro/news/grok-4-6", "canonical_source": "https://tokenstead.ai/models/grok-4-6", "published_at": "2026-08-24 21:54:59+00:00", "updated_at": "2026-08-24 22:45:04.791066+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-products", "ai-agents"], "entities": ["xAI", "Grok 4.6", "Cursor", "OpenRouter", "Agents on Rails", "Opus 5", "Kimi K3", "Fable 5"], "alternates": {"html": "https://wpnews.pro/news/grok-4-6", "markdown": "https://wpnews.pro/news/grok-4-6.md", "text": "https://wpnews.pro/news/grok-4-6.txt", "jsonld": "https://wpnews.pro/news/grok-4-6.jsonld"}}