Grok 4.6
premierProprietary 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.
Guides covering Grok 4.6
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Live per-provider pricing, throughput and uptime - refreshed about 2 months ago via OpenRouter. Click a column to sort.
some pricing may be stale - last verified 2026-08-24
| Provider | Type | Input $/M | Output $/M | Cache $/M | Tok/s | Latency | Uptime | Value |
|---|---|---|---|---|---|---|---|---|
|
xAI
stale
|
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 →
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.