xAI · API pricing
Grok 4.6 pricing
xAI released Grok 4.6 on August 12, 2026 at $2.00 per 1M input tokens and $6.00 per 1M output tokens. The Fast variant is exactly twice the rate: $4.00 / $12.00.
Prices taken from xAI's launch post and verified 2026-08-13.
The short answer
| Variant | Input / 1M | Output / 1M |
|---|---|---|
| Grok 4.6 | $2.00 | $6.00 |
| Grok 4.6 Fast | $4.00 | $12.00 |
Calculate the bill at your volume
Fast carries a clean 2x premium on both sides of the token ledger. Use the calculator with your real input/output mix; the launch post does not publish a latency multiplier, so there is no honest generic break-even claim beyond the rate difference.
Cost calculator
Enter monthly volume and the typical prompt size. The applicable context tier is selected automatically.
| Tier | Input cost | Output cost | Monthly total |
|---|---|---|---|
| Grok 4.6 | $2.00 | $1.20 | $3.20 |
Estimates only — list prices, before any caching discount, batch pricing, or enterprise agreement.
Standard or Fast?
- Start with standard for asynchronous work. xAI positions 4.6 around long-running agents, research, codebase work, and polished artifacts. If completion time is not user-facing, paying the 2x Fast premium needs workload evidence.
- Test Fast only against a latency target. The official post confirms the price multiplier but does not quantify a universal speedup. Benchmark your own prompts before moving the full workload.
- Availability is broad on launch. xAI lists its API, Cursor, Grok Build, OpenRouter, Vercel, and Cloudflare. Channel prices can differ; the rates above are xAI's published starting prices.
Sources
- xAI — Introducing Grok 4.6 (availability and API pricing) — retrieved 2026-08-13
Figures on this page last checked against these sources on 2026-08-13. Vendors change pricing and specs without notice — if a number here disagrees with the vendor's own page, trust the vendor.