Grok 4.6

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.

Grok 4.6 premier 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. 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. 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. - 500k - proprietary - 🇺🇸 USA - Aug 2026 Scores Score per dollar 46 pts per $/M input general score 92 divided by cheapest input price $2.00/M . Higher is better value. See live pricing /models/grok-4-6/pricing . Or run it in the cloud Live per-provider pricing, throughput and uptime - refreshed about 1 hour ago via OpenRouter. Click a column to sort. | Provider | Type | Input $/M | Output $/M | Cache $/M | Tok/s | Latency | Uptime | Value | |---|---|---|---|---|---|---|---|---| | API | 2.00 | 6.00 | - | - | - | - | cheapest | Default 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. Detailed API pricing page + JSON endpoint → /models/grok-4-6/pricing Inference cost over time Data accumulates from the first daily sync - longer ranges populate over time. Prices come from OpenRouter snapshots, not a historical API.